Hydraulics & Pneumatics - Hydraulics & Pneumatics is the leading international technical resource for fluid power http://hydraulicspneumatics.com/rss.xml en Reliable Plant 2017 http://hydraulicspneumatics.com/reliable-plant-2017 <div class="node-body event-body"></div> <h3 class="location-locations-header">Location</h3> <div class="location-locations-wrapper"> <div class="location vcard"> <div class="adr"> <span class="fn">Greater Columbus Convention Center</span> <div class="street-address"> 400 North High St. </div> <span class="locality">Columbus</span>, <span class="region">OH</span> <span class="postal-code">43215</span> <div class="country-name">United States</div> <span class="geo"><abbr class="latitude" title="39.972286">39° 58' 20.2296" N</abbr>, <abbr class="longitude" title="-83.000851">83° 0' 3.0636" W</abbr></span> </div> <div class="map-link"> <div class="location map-link">See map: <a href="http://maps.google.com?q=39.972286+-83.000851+%28400+North+High+St.%2C+Columbus%2C+OH%2C+43215%2C+us%29">Google Maps</a></div> </div> </div> </div> <div class="field-desc"> <p>Professionals attending <a href="http://conference.reliableplant.com" target="_blank"><strong>Reliable Plant Conference &amp; Exhibition</strong></a> come from dozens of different machinery-centric industries, but last year&rsquo;s conference survey results indicate they all had one important thing in common: they learned something new.</p> <p>Reliable Plant goes beyond just presenting new ideas; it gives you strategies for rallying colleagues and management behind these new ideas so they can be implemented for visible improvement.</p> <p>76% of surveyed attendees said they were able to make changes in their workplace within 3 months of attending conference. The most common reason they cited was that their changes and ideas &ldquo;made sense&rdquo; to management and staff. Some were already seeing results.</p> <p>This process of &ldquo;attend, learn, apply&rdquo; is the reason Reliable Plant exists. The 150,000 square foot exhibit hall, receptions, and sessions exist to facilitate the kind of learning and networking which will benefit and inspire attendees long after they leave.</p> </div> http://hydraulicspneumatics.com/reliable-plant-2017#comments 39.972286 -83.000851 Tue, 06 Dec 2016 21:08:00 +0000 41001 at http://hydraulicspneumatics.com A Direct Route to Flexible Systems http://hydraulicspneumatics.com/hose-tubing/direct-route-flexible-systems <div class="field-byline"> Mark Beining, Eaton </div> <div class="field-deck"> Failure of high-pressure hydraulic hoses results in lost productivity, damage to the environment, and most importantly, safety concerns. Using correct routing techniques and advanced technologies significantly reduces that risk. </div> <div class="node-body article-body"><table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/direct-route-flexible-systems-pdf-download">Download this article in .PDF format</a><br /> This file type includes high-resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> <p>Hydraulic systems usually must be designed for installation onto an existing structure. Sometimes designers have no choice but to have components mounted in hard-to-reach locations. However, whenever possible, it&rsquo;s best to place pumps, valves, and actuators where they are easily accessible for service, maintenance, and replacement. This is especially true for filters, because the tougher they are to access, the less likely their element will be replaced when required.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/hose-tubing/more-bendable-hose-simplifies-routing-saves-space">More-Bendable Hose Simplifies Routing, Saves Space</a></p> <p><a href="http://hydraulicspneumatics.com/blog/another-oldie-goodie-improved-hose-routing">Another Oldie but Goodie: Improved Hose Routing</a></p> <p><a href="http://hydraulicspneumatics.com/fittings-couplings/clamp-down-problems">Clamp Down on Problems</a></p> </div> <p>Hydraulic-system designers should strive to use as few fluid conductors as possible by implementing manifolds to interconnect components. In most cases, this requires external piping. Minimizing potential leakage points and making maintenance as simple as possible should be the goals of any astute designer.</p> <p>When planning where hydraulic components will be installed on a machine, designers should provide adequate space to route hose and tubing. In addition, they need to coordinate hydraulic-system planning and design with other systems (electrical, fuel, lube, torque converter, etc.) on the machine.</p> <p><strong>Plan Ahead</strong></p> <p>Whenever possible, hydraulic lines should run parallel within the machine envelope and follow its contours. Smooth, parallel routing can be accomplished with a well-planned layout and proper clamping. Parallel routing can often save money by:</p> <p>&bull; reducing line lengths and the number of adapters;</p> <p>&bull; minimizing the number of sharp bends;</p> <p>&bull; making the machine more serviceable; and</p> <p>&bull; protecting lines from external damage.</p> <p>To help keep lines parallel, study port positions on components and carefully pre-plan the location of valves, filters, heat exchangers, and the reservoir. Components should also be spaced far enough apart to provide room for proper installation of the adapters and fittings on connecting hoses and/or tubing.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/Hose-routing-Fig-1.jpg" style="width: 595px; height: 373px;" title="1. The hose on this power unit has been bent in two different planes—a practice that can lead to premature failure. In this case, two separate lengths of hose should have been joined end-to-end with a hose clamp securing the entire assembly. Another solution would be to use one or more 45-deg. elbows so that the hose could bend in only one plane." /></p> <p><strong>Hose or Tubing?</strong></p> <p>System designers must first determine whether using hose, tubing, or a combination of the two is best for a particular application. Hose and tubing should not be viewed as separate entities, but rather as companion items, each offering specific and unique benefits. For example, tubing can:</p> <p>&bull; be bent to smaller radii than hose and installed in tighter spaces;</p> <p>&bull; be routed through areas of higher ambient heat;</p> <p>&bull; handle hotter fluids than hose; and</p> <p>&bull; provide superior heat transfer.</p> <p>On the other hand, tubing can be flattened or damaged when struck, whereas hose is resilient and more likely to return to its original shape after absorbing a blow. Tubing may also fatigue when connected to high-frequency vibrating components, while hose will absorb the vibration.</p> <p>If lines are long, tubing may require a series of intricate, close-tolerance bends that may complicate installation and ultimately create service problems. The flexing properties of hose, on the other hand, allow it to follow desired contours and thus simplify hose installation. Hose can also absorb some high transient-pressure shocks, providing more uniform flow patterns and smoother, quieter operation. Hose is not recommended when hydraulic rigidity is required due to its tendency to act as an accumulator.</p> <p><strong>Good Designs Promote Good Maintenance</strong></p> <p>To correctly route and properly install fluid-conveying components during a machine prototyping, follow these 10 general rules. These guidelines should be most beneficial during machine prototyping. Follow normal production procedures after eliminating all bugs.</p> <p><strong>1. Start with large lines&mdash;</strong>Install the largest diameter lines first because they are the most difficult to bend and maneuver, especially in tight spaces. After that, the job becomes easier. Smaller lines provide greater routing versatility and can be more easily worked into tight spaces, so route each line to conserve maximum space. This not only results in a neater-looking machine, but makes future modifications or additions of accessories easier, more convenient, and more economical.</p> <p><strong>2. Aim for optimum length&mdash;</strong>The appearance and efficient operation of a system often depends on using proper-length hoses. Making them too long increases pressure drops and system cost. Hose assemblies are commonly manufactured to specified lengths as well as increments of lengths to minimize the size of the inventory, which must be carried. When computing hose length, remember that hose can elongate as much as 2% or contract as much as 4%.</p> <p><strong>3. Hose flexing</strong>&mdash;A hose assembly is designed to bend, not twist. In fact, if a large-diameter, high-pressure hose is twisted only 7 deg., its service life can be significantly reduced&mdash;in some cases by as much as 90%.</p> <p>High-pressure hose must be routed to flex in only one plane <em>(Fig. 1)</em>. If routing requires hose to bend in more than one plane, the hose should be divided into two or more sections so that each will flex through only one plane. Better yet, a 45- or 90-deg. elbow could be incorporated to prevent bending the hose in two planes.</p> <p>A spring guard often is used to keep hose from bending beyond its minimum bend radius at the fitting. However, it will not prevent the hose from twisting.</p> <p><strong>4. Pivot points</strong>&mdash;When hose must flex, route it through the pivot point around which the component is moving <em>(Fig. 2)</em>. This will produce the most efficient flexing of the hose line, use the least amount of hose, and keep the hose within the confines of the machine. To achieve this, the hose should be positioned to bend like a hinge. Otherwise, the hose may tend to take an S-bend, which is most likely to happen when the hose is pushed rather than bent. An S-bend installation results in excessive movement and shorter service life.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/Hose-routing-Fig-2.jpg" style="width: 595px; height: 397px;" title="2. When hose must flex, route it through the pivot point around which the component is moving. This practice helps prevent excessive movement and provides protection by partially shielding the hose from the environment." /></p> <p>When working a hose through a pivot point, consider the relative positioning of the two end fittings to avoid an S-bend. Swing the moving component to its farthest point, where the hose will experience its widest bend. If the fittings are placed in parallel planes at this point, the hose will tend to flex in a hinge-like manner when the component is swung back to the opposite end of its travel.</p> <p><strong>5. Reciprocating motion</strong>&mdash;In addition to flexing, the ends of the hose may have to reciprocate. Several methods are used to accomplish this:</p> <p>&bull; <em>Hose reels</em>&mdash;For use with high-pressure hydraulic hose, these reels are equipped with high-pressure swivel joints and a spring return to help rewind the hose.</p> <p>&bull; <em>Festooning</em>&mdash;Hose is hung in loops from a steel cable. As one point of the loop moves away from the other, the loops open to form an almost straight line.</p> <p>&bull; <em>Rolling</em>&mdash;Hose is arranged in an unbalanced U-shape with hinged tracks carrying the hose. One leg is left stationary and longer than the second, which is free to reciprocate parallel to the first.</p> <p><strong>6. Rotary motion</strong>&mdash;Swivel or rotary joints are commonly used to provide rotating motion. Where continuous rotary movement is used, specify a rotating joint. If movement pivots and reverses, a swivel joint would be the better choice. When used with hose, a swivel joint will prevent hose twisting or bending at the fitting.</p> <p><strong>7. Control oil spray</strong>&mdash;Fire protection must be incorporated when hydraulic lines are routed near hot, potentially hazardous areas. This prevents oil in a broken line from spraying onto any potential source of ignition. There are several ways to build in such protection:</p> <p>&bull; Reroute the line through a tunnel made from steel tubing, channel, or angle iron.</p> <p>&bull; Install a sheet-metal baffle between the lines and potential ignition source.</p> <p>&bull; Route the lines through a large, open-ended hose or sleeve so that the oil will flow out of the ends in case of line failure.</p> <p>&bull; Use fire sleeves either to fit over the hose or built into the hose cover.</p> <p>&bull; To guard against a failed hose that might whip and spray hydraulic oil over an ignition source, anchor the hose to the component to which it is hydraulically connected.</p> <p><strong>8. Minimum bend radii</strong>&mdash;The hose must be routed to accommodate the minimum bend radius of that hose <em>(Fig. 3)</em>. Minimum bend radii for different hose diameters and pressure ratings are provided in SAE and hose manufacturers&rsquo; literature. These figures usually refer to the minimum bend radius at maximum operating pressure for a static line. Bending a hose to less than the minimum radius can result in kinking of the hose and excessive stress at the hose or fitting interface. As a result, the cover can crack more easily or the internal wire reinforcement can fatigue quicker, both of which will reduce service life.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/Hose-routing-Fig-3.jpg" style="width: 595px; height: 397px;" title="3. Ensure that machine structures do not bend the hose beyond its minimum bend radius. Also note that this installation uses covers to protect hoses from abrasive wear, a major cause of premature failure when hoses rub against each other or against the machine structure." /></p> <p><strong>9. Avoid abrasion</strong>&mdash;Hydraulic hose typically features a tough outer cover to protect the hose reinforcement from abrasion or moisture damage. However, constant abrasion at one point will eventually puncture the outer cover and weaken the reinforcement. This is the number one cause of hydraulic hose failures in the field.&nbsp; To minimize abrasion, either properly route and clamp the hose, or use a protective cover <em>(Fig. 3, again)</em>. A variety of protective coverings are available, including coiled springs, coiled strap steel, spiraled plastic, and nylon sleeves.</p> <p><strong>10. Clamping</strong>&mdash;A piping installation is not complete until properly clamped. Clamp choice is very important, and often it can be critical to the installation <em>(Fig. 4)</em>. Common sheet-metal clamps will not hold a large, high-pressure hose.</p> <p>Good clamps can be inexpensive, yet highly effective for high-pressure surge lines. Anticipate and plan for a possible length change ranging from an increase of 2% to a decrease of 4% for high-pressure lines. Proper routing and clamping should be planned to avoid areas of vibration. Also, never clamp the hose on a bend.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/Hose-routing-Fig-4.jpg" style="width: 595px; height: 397px;" title="4. Installing clamps at regular intervals minimizes rubbing and flexing by preventing unnecessary movement." /></p> <p>Properly sized clamps should grip the hose securely. To keep the clamp from abrading the hose, the ID of the clamp should be about 1/32 in. smaller than the OD of the hose.</p> <p>Good installation techniques are essential to efficient operation and maximizing the life of a hydraulic system. However, hydraulic hose and tubing are fatigue items with a finite service life&mdash;eventually these wear items will fail. Typically, basic maintenance techniques, such as visual inspection or time-based preventive schedules, are not enough to sufficiently prevent failures.</p> <p><strong>Hose Life</strong></p> <p>The mean time to failure (MTTF) of a component can vary widely based on the duty cycle, installation practices, environment, and robustness of the product. Many users replace hydraulic hoses at predetermined intervals&mdash;say, every three years. However, this is an average value, so replacing hoses at three-year intervals does not guarantee that they will last three years. Alternately, hoses in less-demanding applications may last six years. If so, replacing them after only three years of service means they have only achieved half their useful life.</p> <p><em>Figure 5</em> is an example of how the MTTF can vary for a hydraulic hose. This range of performance makes it difficult to determine the exact interval at which each hydraulic hose should be replaced without discarding a good hose or preventing occurrence of a failure.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/fig5.gif" style="width: 595px; height: 336px;" title="5. Replacing all hydraulic hoses at average intervals wastes money when hoses in lighter-duty applications are replaced before they have approached their full useful life. On the other hand, it invites downtime when hoses in more demanding applications are not replaced before they fail. " /></p> <p><a href="http://sourceesb.com/eatonhydraulicsgroup/distributors-and-vendors" target="_blank">Eaton&rsquo;s</a> LifeSense Hose is a condition-based hose-monitoring system designed to detect failure-related events both inside and outside a hydraulic hose. It provides an electronic signal to indicate that it should be replaced before actual failure. The LifeSense feature monitors both internal fatigue and external abrasion&mdash;the primary causes of hose failure in the field. Two options are available: a wired system and a wireless system.</p> <p>The wired system consists of a sensor on the hose assembly connected to a wire that is routed to a hose diagnostic unit. The hose diagnostic unit then interprets the data and alerts the operator if a hose needs replacement.</p> <p>The wireless system includes a sensor connected on the hose assembly that communicates via a high-frequency radio signal to a hose diagnostic unit. The hose diagnostic unit also doubles as a gateway where it can communicate this information to smart devices via Ethernet or Wi-Fi. With the information in the cloud, it can be sent via text message or e-mail. The wireless system also provides a customer portal that can serve as a user interface for remote monitoring.&nbsp; Now, the true condition of that hydraulic hose can be monitored anywhere, anytime.</p> <p>By combining good hose-routing practices and advanced condition-monitoring technology&mdash;such as Eaton&rsquo;s LifeSense Hose&mdash;the frequency and impact of hydraulic hose failures can be significantly, if not completely, eliminated. The end result is maximized equipment efficiency and reduced safety concerns.</p> <p><em>Mike Beining is Engineering Manager, Product Application at Eaton&rsquo;s hydraulic hose operation in Maumee, Ohio. For more information, call (</em><em>800) 386-1911 or </em><em>visit <a href="http://www.eaton.com/hose" target="_blank">www.eaton.com/hose</a>.</em></p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/hose-tubing/direct-route-flexible-systems#comments Hose & Tubing Tue, 06 Dec 2016 20:20:00 +0000 40981 at http://hydraulicspneumatics.com Houghton International Launches New Website http://hydraulicspneumatics.com/hydraulic-fluids/houghton-international-launches-new-website <div class="field-byline"> Staff </div> <div class="node-body article-body"><p>Metalworking fluids and services company, Houghton International, announces the launch of its new website,&nbsp;<a href="http://www.houghtonintl.com/" target="_blank">www.houghtonintl.com</a>&nbsp;to&nbsp;deliver detailed information about the company&#39;s&nbsp;&nbsp;global operations, advanced product solutions, and services. The website can be viewed in&nbsp;14 languages across all platforms and devices.&nbsp;</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/news/power-packer-website-offers-product-info-trade-show-schedules">Power-Packer Website Offers Product Info, Trade-show Schedules</a></p> <p><a href="http://hydraulicspneumatics.com/news/website-tackles-safety-workplace ">Website Tackles Safety in the Workplace</a></p> <p><a href="http://hydraulicspneumatics.com/news/e-commerce-website-lends-hand-oil-cooler-distribution">E-Commerce Website Lends a Hand to Oil Cooler Distribution</a></p> </div> <p>&ldquo;We are pleased to introduce an elegant new site design that makes it easy for manufacturers across all industries to learn about Houghton&rsquo;s wide range of fluid solutions,&rdquo; says&nbsp;Dianne&nbsp;<span data-scayt-lang="en_US" data-scayt-word="Carmody">Carmody</span>, Houghton Americas Marketing Director, Global Product Management Adjacent Businesses. &ldquo;The new site uses contemporary features to streamline navigation and guide visitors to the specific information they need for their particular industries and applications.&rdquo;</p> <p>The site&rsquo;s product finder and database&nbsp;let&nbsp;customers access product information, including white papers and data sheets, to fully explore Houghton&rsquo;s range of fluid solutions and services available around the globe.&nbsp;Houghton&nbsp;offers a range of hydraulic fluids including fire-resistant hydraulics, friction modifiers, industrial lubrication, offshore fluids, and transportation lubrication.&nbsp;</p> <p><a href="http://sourceesb.com/" style="color: rgb(14, 95, 139); font-family: Georgia, Times, &quot;Times New Roman&quot;, serif; background-color: rgb(230, 230, 230); font-size: 15px;" target="_blank"><img alt="" src="http://machinedesign.com/site-files/machinedesign.com/files/uploads/2016/02/SourceESB_Lookin_For_Parts_Banner_0.jpg" style="display: block; width: 595px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/hydraulic-fluids/houghton-international-launches-new-website#comments Hydraulic Fluids Tue, 06 Dec 2016 16:51:00 +0000 41011 at http://hydraulicspneumatics.com Hydrostatic Transmissions: Making Sense Of Case Drain Flow - Part 3 http://hydraulicspneumatics.com/blog/hydrostatic-transmissions-making-sense-case-drain-flow-part-3 <div class="node-body blog-body"><p>In my <a href="http://hydraulicspneumatics.com/blog/hydrostatic-transmissions-making-sense-case-drain-flow-part-2">previous posts on hydrostatic transmissions</a>, I described the technique for determining the condition of a hydrostatic transmission using case drain flow, and discussed the role and influence of a flushing valve when doing this.<br /> <br /> In response to these articles, some members were still confused about the influence of the charge pump when determining case drain leakage from a hydrostatic transmission.<br /> <br /> One reader held the view that, assuming the charge pump relief valve vents into the case of the motor and the motor case drain line is isolated from the pump, then transmission pump leakage is determined by subtracting charge pump flow from the total flow from the pump case. For example, if total charge pump flow was 10 GPM and the flow-meter in the pump case drain line was reading 15 GPM then transmission pump leakage would be 5 GPM (15 - 10 = 5).<br /> <br /> This is incorrect because it suggests that a hydrostatic transmission can leak more than the total available flow from its charge pump. It cannot. That is, it is impossible for the flow meter in the pump case drain line to read 15 GPM when the total available flow from the charge pump is only 10 GPM, as in the above example.<br /> <br /> The reason is simple. Because the function of the charge pump is to make up losses from the loop through internal leakage, if total losses exceed available charge pump flow, the transmission will cavitate. If in the above example, the transmission was leaking 5 GPM more than the total available flow from the charge pump, there would be a serious deficit of fluid in the transmission loop. In practice, the transmission would destroy itself through cavitation before it got to this point.<br /> <br /> Let me explain this another way. Let&#39;s assume we have a transmission that has a volumetric efficiency of 100%, that is, the pump and motor have no internal leakage. The loop has a total volume of two gallons and is full of oil. Because there is no internal leakage there is no need for a charge pump.<br /> <br /> The pump is stroked to maximum displacement, which circulates the two gallons of oil in the loop at a rate of 50 GPM. Because it&#39;s a closed circuit, with no leakage, the flow from pump to motor is 50 GPM and the flow from motor to pump is 50 GPM.<br /> <br /> Now let&#39;s introduce internal leakage of 0.5 GPM in both pump and motor (1 GPM total). The result is that, with no charge pump to replenish the loop, after one minute there will only be one gallon of fluid left in the loop (the other gallon will have leaked back to tank). Within a second of the transmission starting to leak, the transmission pump will start to cavitate and the severity of this cavitation will increase with each passing second until the transmission destroys itself.<br /> <br /> Now let&#39;s install a charge pump with a flow rate of 1 GPM in the circuit. Problem solved, temporarily at least. With 1 GPM leaking out of the transmission loop and 1 GPM being replenished by the charge pump the status quo is maintained... until wear causes the internal leakage of the transmission to exceed 1 GPM.<br /> <br /> As you can see, it is not possible for the internal leakage of a hydrostatic transmission to exceed the flow rate of its charge pump. Charge pump flow rate is typically 20% of transmission pump flow rate. This means that volumetric efficiency can drop to 80% before the transmission will cavitate and damage itself. The trick is to overhaul the transmission before this point is reached.<br /> <br /> As you can see, testing a hydrostatic transmission&#39;s efficiency without a complete understanding of its operating principles can result in unnecessary and costly change-outs. And to discover six other costly mistakes you want to be sure to avoid with your hydraulic equipment, <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=smr"><strong>get &quot;Six Costly Mistakes Most Hydraulics Users Make... And How You Can Avoid Them!&quot; available for FREE download here</strong></a>.</p> </div> http://hydraulicspneumatics.com/blog/hydrostatic-transmissions-making-sense-case-drain-flow-part-3#comments Hydraulics At Work Tue, 06 Dec 2016 00:34:00 +0000 40971 at http://hydraulicspneumatics.com Essentra Caps & Plugs Application Guide http://hydraulicspneumatics.com/fittings-couplings/essentra-caps-plugs-application-guide <div class="field-deck"> Sponsored by Essentra </div> <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/ESSENTRA_Corporate-Logo-135x85.jpg" style="width: 135px; height: 85px; float: right;" />Choosing the right cap or plug to protect your application can be challenging. Our guide provides an easy way to choose the perfect solution to protect fittings and vital components against damage, moisture and corrosion with durable, easy to install Caps &amp; Plugs from Essentra. Our range includes imperial and metric sizes, push fit and threaded styles, and industry-specific products such as flange covers, hydraulic caps and plugs, bolt and screw caps, and masking items.&nbsp;</p> <script type="text/javascript"> document.write('\ <iframe style="height: 1250px; width: 100%; border:0;” frameBorder="0" scrolling="no"\ src="http://pages.hydraulicspneumatics.com/HP_Digital_Essentra_CapsPlugsGuide_WP_JR_120116?partnerref=' + getParameterByName("partnerref") + "&elq=" + getParameterByName("elq2") + "&code=" + getParameterByName("code") + "&PK=" + getParameterByName("PK") + "&PR=" + getParameterByName("PR") + '"></iframe>'); function getParameterByName(name) { var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search); if (match == null) return ""; return match && decodeURIComponent(match[1].replace(/\+/g, ' ')); } </script></div> http://hydraulicspneumatics.com/fittings-couplings/essentra-caps-plugs-application-guide#comments White Papers Fittings & Couplings Mon, 05 Dec 2016 21:45:00 +0000 40951 at http://hydraulicspneumatics.com Principios Ingenieriles Básicos: Circuitos Regenerativos http://hydraulicspneumatics.com/blog/principios-ingenieriles-b-sicos-circuitos-regenerativos <div class="node-body blog-body"><p class="rtejustify">Los circuitos regenerativos permiten aprovechar el flujo de un lado del actuador al otro. Al hacer esto, logramos obtener mayor velocidad en etapas de desplazamiento muerto del ciclo, es decir, cuando no se efect&uacute;a trabajo. A continuaci&oacute;n les presentamos los circuitos regenerativos m&aacute;s comunes:</p> <p class="rtejustify"><strong>Circuito 1</strong></p> <p class="rtejustify"><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2014/04/Fig1_9.png" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2014/04/Fig1_9.png" style="width: 250px; height: 298px; margin: 10px; float: right;" /></a>Al energizar el lado A de la v&aacute;lvula direccional observe como se dirige flujo desde la bomba hacia el lado del pist&oacute;n del cilindro y al estar bloqueada la conexi&oacute;n B en la v&aacute;lvula, el caudal del lado anular regresa a la l&iacute;nea principal. Esto permite una extensi&oacute;n m&aacute;s r&aacute;pida del cilindro. Al llegar a la pieza de trabajo, la fuerza se logra mediante el diferencial entre las &aacute;reas del cilindro, por lo que es importante seleccionar uno con un diferencial considerable, por ejemplo 2:1.</p> <p class="rtejustify"><strong>Circuito 2</strong></p> <p class="rtejustify">El combinar la extensi&oacute;n r&aacute;pida mostrada en el Circuito 1 con fuerza total al encontrar resistencia (pieza de trabajo), aprovechamos al m&aacute;ximo las ventajas de un circuito regenerativo. El circuito mostrado en la figura permite una extensi&oacute;n m&aacute;s r&aacute;pida del cilindro; al encontrar resistencia se genera presi&oacute;n piloto que abre la v&aacute;lvula de secuencia y permite flujo de aceite desde el lado anular del cilindro hacia tanque. Cuando esto ocurre, contamos con la fuerza efectiva total del cilindro contra la pieza de trabajo.</p> <p class="rtejustify"><strong>Circuito 3</strong></p> <p class="rtejustify">Este circuito permite obtener las mismas ventajas que el Circuito 2, pero a un costo m&aacute;s bajo. En lugar de utilizar una v&aacute;lvula de secuencia con antirretorno incorporada, utilizamos una antirretorno y un orificio. Existe contrapresi&oacute;n remanente en el lado anular del cilindro debido a la resistencia del orificio al final de la carrera, pero al llegar a extensi&oacute;n completa, no hay flujo a trav&eacute;s del orificio, por lo que se cuenta con la fuerza total. Se debe estudiar la efectividad del circuito en cuesti&oacute;n en base a la fuerza requerida.</p> <p class="rtejustify"><strong>Circuito 4</strong></p> <p class="rtejustify"><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2014/04/Fig2_8.png" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2014/04/Fig2_8.png" style="width: 250px; height: 289px; margin: 10px; float: right;" /></a>Cuando se desee un control el&eacute;ctrico, se puede utilizar un interruptor l&iacute;mite o de proximidad para activar o desactivar un circuito regenerativo. En el circuito mostrado, al energizar los solenoides a y b, se extiende el cilindro como circuito regenerativo. Al alcanzar el final de carrera, el interruptor de-energiza el solenoide b, lo que causa que se env&iacute;e el caudal a tanque y se obtenga un circuito diferencial convencional (fuerza en su totalidad).</p> </div> http://hydraulicspneumatics.com/blog/principios-ingenieriles-b-sicos-circuitos-regenerativos#comments Circuits H&amp;P en tu idioma! Mon, 05 Dec 2016 13:00:00 +0000 40961 at http://hydraulicspneumatics.com Save Energy by Recycling Air http://hydraulicspneumatics.com/air-compressors/save-energy-recycling-air <div class="field-byline"> Lowell Jones and Michael Goldfarb, Nexmatix LLC </div> <div class="field-deck"> Redirecting exhaust air back into the circuit of an air cylinder through a 5/3 valve can cut energy cost as much as 30% without sacrificing performance. </div> <div class="node-body article-body"><table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/save-energy-recycling-air-pdf-download">Download this article in .PDF format</a><br /> This file type includes high resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> <p><img alt="Nexmatix valves" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/Nexmatix-lead.jpg" style="width: 595px; height: 397px;" title="Nexmatix valves are designed as drop-in replacements for valves conforming to ISO 15407 and 5599. They are also color-coded to make it easy to identify spool configuration from a distance. Each valve also contains a QR code so a smartphone can be used to pull detailed information about any individual valve. " /></p> <p>Although pneumatics technology provides a clean, high-power, low-cost means of implementing factory automation, the compressed-air costs associated with pneumatic systems are notoriously high&mdash;often accounting for up to 30% or more of the power costs at a plant.&nbsp; In the U.S. alone, it has been estimated that the energy used to compress air exceeds a half-quadrillion BTUs per year.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/air-filters-and-frls/compressed-air-systems-rely-proper-filtration">Compressed Air Systems Rely on Proper Filtration</a></p> <p><a href="http://hydraulicspneumatics.com/air-filters-and-frls/compressed-air-filter-product-roundup">Compressed-Air Filter Product Roundup</a></p> <p><a href="http://hydraulicspneumatics.com/air-compressors/determine-cost-compressed-air-your-plant">Determine the Cost of Compressed Air for Your Plant</a></p> </div> <p><a href="http://sourceesb.com/nexmatixllc/distributors-and-vendors" target="_blank">Nexmatix LLC</a> has developed an innovative directional control-valve technology that provides a plug-and-play replacement for a standard directional control valve. Typically, it yields a 25% savings in compressed-air costs without compromising system function. The intent of this article is to illustrate cost savings provided by Nexmatix technology in a typical pneumatic actuation application.</p> <h3>The Cost of Compressed Air</h3> <p>One of the primary contributors to the high cost of compressed air is the relative low efficiency of compressed-air systems, which are typically characterized by efficiencies from electrical input power to compressed air outlet power of 10% to 14%. The nature of these inefficiencies is not always well understood, and as such the authors use this section to derive and explain the electricity costs associated with operation of a compressed-air system.</p> <p>In assessing the costs associated with a pneumatic system or component, it is most convenient to compute costs as a function of the compressor outlet air flow. The relation between the electrical input power to a compressor and the pneumatic power at the output of the compressor is:</p> <p><em>P<sub>o</sub></em> = <em>&eta;<sub>m</sub></em> &times; <em>&eta;<sub>c</sub></em> &times; <em>P<sub>i</sub></em>&nbsp; &nbsp;(1)</p> <p>where:</p> <p><em>P<sub>o</sub></em> is power out (available pneumatic power);</p> <p><em>P<sub>i</sub></em> is power in (electric power supplied to compressor);</p> <p><em>&eta;<sub>m</sub></em> is motor efficiency from electrical power input to rotational mechanical shaft power</p> <p>output (typically between 85% and 95%); and</p> <p><em>&eta;<sub>c</sub></em> is compressor efficiency from rotational mechanical shaft power input to constant pressure outlet air power (typically between 10% and 18% for positive displacement compressors).</p> <p>The available pneumatic power assumes that the pneumatic component using this power will not extract heat as work from the compressed air. Alternately stated, the temperature of the compressed air, when used by the pneumatic component, is not significantly higher than the ambient temperature of the system. In other words, after it has been compressed, the air performs work in the same manner as does a hydraulic component. This is consistent with the manner in which pneumatic components perform work in an automation environment. Given this assumption, the power that can be utilized from constant pressure and volumetric flow is:</p> <p><em>P<sub>o</sub></em> = (<em>p<sub>o</sub></em> &ndash; <em>p<sub>i</sub></em>) <em>Q<sub>o</sub></em>&nbsp; &nbsp;(2)</p> <p>where:</p> <p><em>p<sub>o</sub></em> is absolute pressure at the outlet of the compressor;</p> <p><em>p<sub>i</sub></em> is absolute pressure at the inlet of the compressor; and</p> <p><em>Q<sub>o</sub></em> is volumetric flow rate at the outlet of the compressor.</p> <p>Defining outlet gauge pressure, <em>p<sub>g</sub></em>, as (<em>p<sub>o</sub></em> &ndash; <em>p<sub>i</sub></em>), Eq. 2 can also be written as:</p> <p><em>dW<sub>o</sub></em>/<em>dt</em> =&nbsp; <em>p<sub>g</sub> </em>&times; <em>dv<sub>o</sub></em>/<em>dt&nbsp; &nbsp;</em>(3)</p> <p>where:</p> <p><em>W<sub>o</sub></em> is work output;</p> <p><em>v<sub>o</sub></em> is volume output; and</p> <p><em>t</em> is time.</p> <p>Assuming steady-state conditions, both sides of Eq. 3 can be integrated to yield:</p> <p><em>W<sub>o</sub></em> = <em>p<sub>g</sub></em> &times; <em>v<sub>o</sub></em>&nbsp; &nbsp;(4)</p> <p>Likewise, both sides of Eq. 1 can be integrated to provide a relationship between input energy and output work:</p> <p><em>W<sub>o</sub></em> = <em>&eta;<sub>m</sub></em> &times; <em>&eta;<sub>c</sub></em> &times; <em>E<sub>i</sub></em>&nbsp; &nbsp;(5)</p> <p>where:</p> <p><em>E<sub>i</sub></em> is input energy.</p> <p>Combining Eqs. 4 and 5 and solving for input energy results in:</p> <p><em>E<sub>i</sub></em> = <em>p<sub>g</sub></em> &times; <em>p<sub>o</sub></em>/<em>&eta;<sub>m</sub></em> &times; <em>&eta;<sub>c</sub></em>&nbsp;&nbsp;&nbsp; (6)</p> <p>The following relationship is used to introduce cost to the analysis:</p> <p><em>C</em> = <em>&alpha;</em> &times; <em>E<sub>i</sub></em>/(1&ndash; <em>&beta;</em>)&nbsp;&nbsp;&nbsp; (7)</p> <p>where:</p> <p><em>C</em> is a cost of running the compressor system, $;</p> <p><em>&alpha;</em> is cost of electrical power, $/J); and</p> <p><em>&beta;</em> is the dimensionless cost factor of running the compressor system (typically 0.2 to 0.3).</p> <p>The cost factor, <em>&beta;</em>, is site-specific and typically includes maintenance, capital depreciation, water- cooling costs, and other overhead associated with the system.</p> <p>Substituting Eq. 7 into Eq. 6 and solving for cost yields:</p> <p><em>C<sub>o</sub></em> = <em>&alpha;</em> &times; <em>p<sub>g</sub></em> &times; <em>v<sub>o</sub></em>/[ <em>&eta;<sub>m</sub></em> &times; <em>&eta;<sub>c</sub></em> (1&ndash; <em>&beta;</em>)]&nbsp; &nbsp;(8)</p> <p>or as a cost specific to volume:</p> <p><em>Č<sub>o</sub></em> = &alpha; &times; <em>p<sub>g </sub></em>/[ <em>&eta;<sub>m</sub></em> &times; <em>&eta;<sub>c</sub></em> (1&ndash; <em>&beta;</em>)]&nbsp;&nbsp;&nbsp; (9)</p> <p>where <em>Č<sub>o</sub></em> is the cost per volume of compressed air in its compressed (outlet) state.&nbsp;</p> <p>A conversion factor is applied to put this cost equation into more commonly used units:</p> <p><em>Č<sub>o</sub></em> = 0.0543 &times; <em>&alpha;</em> &times; <em>p<sub>g </sub></em>/[ <em>&eta;<sub>m</sub></em> &times; <em>&eta;<sub>c</sub></em> (1&ndash; <em>&beta;</em>)]&nbsp;&nbsp;&nbsp; (10)</p> <p>where:</p> <p><em>Č<sub>o</sub></em> is in $/MCF (1 Mft<sup>3</sup> = 1,000 ft<sup>3</sup>);</p> <p><em>&alpha;</em> is in $/kW-hr; and</p> <p><em>p<sub>g</sub></em> is gauge pressure, psi.</p> <p>This cost calculation of air in its compressed state is a critical distinction from the compressor&rsquo;s inlet air. Although computing the cost of air relative to the outlet flow is most direct, it also requires knowledge of the outlet pressure for a given application. To remove dependence on the outlet pressure, the cost can instead be transformed, using the ideal gas law, to an equivalent volume of air at the inlet (i.e., at standard conditions). To determine the cost of compressed air relative to the inlet flow, simply apply the ideal gas law.</p> <p>For a given mass of gas at a given temperature effects, the ideal gas law simplifies to:</p> <p><em>p<sub>o</sub></em> &times; <em>v<sub>o</sub></em> = <em>p<sub>i</sub></em> &times; <em>v<sub>i</sub></em> <em>; v<sub>o</sub> = p<sub>i</sub></em> <em>v<sub>i</sub>/p<sub>o</sub></em>&nbsp; &nbsp;(11)</p> <p>The temperature of a compressed gas used for pneumatic actuation is typically at a standard temperature, as is the inlet air. Substituting Eq. 11 into Eq. 8, dividing by <em>v<sub>i</sub></em> yields the cost of compressed air per inlet volume. Applying the unit conversion factor:</p> <p><em>Č<sub>i</sub></em> = 0.0543 &times; <em>&alpha;</em> <em>p<sub>g</sub></em>/[<em>&eta;<sub>m</sub></em> <em>&eta;<sub>c</sub></em> (1&ndash; <em>&beta;</em>)] &times; <em>p<sub>i</sub></em>/<em>p<sub>o</sub></em>&nbsp; &nbsp;(12)</p> <p>Or more simply:</p> <p><em>Č<sub>i</sub></em> = <em>p<sub>i</sub></em>/<em>p<sub>o</sub></em> &times; <em>Č<sub>o</sub></em>&nbsp; &nbsp;(13)</p> <h3>Sample Calculation</h3> <p>This calculation is intended to provide an example of the average cost of compressed air in a typical U.S. industrial setting using real-world data. Assumptions for this scenario include standard inlet conditions (14.7 psia and 20&deg;C) and an outlet pressure of 90 psig.&nbsp; The remaining average input variables were gathered from various sources, including compressor manufacturers&rsquo; curves and user data:</p> <p>Motor efficiency, <em>&eta;<sub>m</sub></em> , is 90%;</p> <p>Compressor efficiency, <em>&eta;<sub>c</sub></em> is 15%;</p> <p>Cost of electrical power, &alpha; is $0.07/kW-hr; and</p> <p>Compressor system cost factor, <em>&beta;</em> is 24%.</p> <p>Using Eqs. 10 and 13, the cost per MCF of air at the inlet and outlet is shown in <em>Table 1</em>.</p> <p><img alt="Table 1" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/table1.gif" style="width: 250px; height: 141px; margin: 5px; float: left;" title="" />Published data for the cost of compressed air ranges from $0.18/MCF to $0.66/MCF. This range is the cost for the inlet flow.&nbsp; The outlet flow cost is typically seven to eight times higher due to the same mass of air being compressed into a smaller volume.</p> <h3>Experimental Verification</h3> <p>A simple test to illustrate and verify this cost analysis was designed and conducted in our laboratory.&nbsp; A power meter was used to measure the total energy delivered to a 2-hp reciprocating air compressor while it supplied 90 psig air to cycle a double-acting cylinder through a 5-port, 3-position valve.&nbsp; The total calculated displaced volume per cylinder stroke was 5.7 in.<sup>3</sup>.&nbsp; After 5,000 cycles of cylinder actuation, the energy consumed by the compressor was measured as 1.58 kW-hr. The total volume of compressed air displaced was:</p> <p>5.7 in.<sup>3</sup>/stroke<br /> &times; 1 ft<sup>3</sup>/1728 in.<sup>3</sup> &times; 2 strokes/cycle &times; 5,000 cycles = 33 ft<sup>3</sup></p> <p>Assuming $0.07/kW-hr as the cost of power, the volume-specific cost of the compressed (outlet) air is:</p> <p>1.58 kW-hr &times; 0.07 $/kW-hr &times;1/33 ft<sup>3</sup> &times;1,000 ft3/Mft<sup>3</sup> = $3.35/Mft<sup>3</sup></p> <p>At standard (inlet) conditions (Eq. 13):</p> <p>$3.35/Mft<sup>3</sup> &times; 14.7/(90+14.7) = $0.47/Mft<sup>3</sup></p> <p>Although this value is in close agreement with the theoretical outlet value from Table 1, it does not include a cost factor,<em> &beta;</em>, which, if included, would increase the $/MCF further.&nbsp; Note that the 2-hp laboratory compressor likely has a lower efficiency than what was assumed for the industrial compressor of the sample calculation, thus resulting in a somewhat higher cost than estimated in Table 1.</p> <div class="formulas" style="border-top:1px solid #000000; border-left:1px solid #000000; border-right:1px solid #000000;"> <h3>ORNL Confirms Energy Efficiency of Valves</h3> </div> <div class="formulas" style="border:1px solid #000000;"> <p>The Oak Ridge National Laboratory has published a report on the feasibility and testing of a lightweight, energy-efficient, additive-manufactured pneumatic control valve. Results confirmed that the valves &ldquo;are as energy efficient as stated.&rdquo; The report went on to say, &ldquo;measuring air consumption per work completed, the Nexmatix valve was as much as 85% better than the Festo valve&rdquo; to which it was compared. Download a copy of the report <a href="http://bit.ly/HP1611NexORNL" target="_blank">here</a>.</p> </div> <h3>Unconventional Pneumatic Technology</h3> <p>Proprietary solenoid valve technology from Nexmatix recycles an average of 30% of the air otherwise exhausted to the atmosphere, thus reducing air consumption without compromising actuator function. The valves are a plug-and-play replacement for standard off-the-shelf ISO valves typically used for controlling air cylinders.&nbsp; Reducing the air consumption results in lower electricity and compressor maintenance costs. The technology can be applied to most popular 5-port/3-position and 5-port/2-position valve lines with negligible cost difference.</p> <p>The technology works by briefly connecting the valve&rsquo;s two cylinder (outlet) ports during each stroke. As the valve cycles, the pressurized cylinder port connects to the opposing (unpressurized) cylinder port, recycling the compressed air from one end of the cylinder to the other. This effectively precharges the depressurized end before it is connected to supply, saving on average 20% to 40% of the compressed air.</p> <p>The two ends in fluid communication are allowed to briefly dwell (equalize) before venting the remaining spent air from the first cylinder port.&nbsp;This connection occurs on the order of tens of milliseconds and is transparent to the user. For a three-position valve, typical center-position behavior is maintained during power down or loss of pressure.</p> <p><em><img alt="Table 2" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/10/11/table2.gif" style="width: 300px; height: 144px; margin: 5px; float: left;" title="" />Table 2</em>&nbsp;summarizes a variety of typical cylinders used in industrial environments and the respective annual cost savings that can be expected by incorporating Nexmatix directional control valves to actuate these cylinders. These examples apply the same parameters used for the calculations described above. The examples assume two-shift operation, cycling 60 times per minute, and air-line lengths of 20 ft.&nbsp;</p> <p>In most cases, the annual savings gained by adopting this technology will provide and rapid and significant return on investment.</p> <p><em>Lowell Jones, Ph.D., is vice president, engineering, and Michael Goldfarb, Ph.D., is chief technology officer at <a href="http://sourceesb.com/nexmatixllc/distributors-and-vendors" target="_blank">Nexmatix LLC</a>, St. Louis, Mo.&nbsp;</em></p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> <style type="text/css">.formulas {background-color:#CCFFFF; padding:10px; width:575px;} @media only screen and (max-width: 578px) { .formulas {width:95%;} } <style> </style> <table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/save-energy-recycling-air-pdf-download">Download this article in .PDF format</a><br /> This file type includes high resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> </style></div> http://hydraulicspneumatics.com/air-compressors/save-energy-recycling-air#comments Air Compressors Tue, 29 Nov 2016 19:58:00 +0000 40911 at http://hydraulicspneumatics.com Save Energy by Recycling Air (.PDF Download) http://hydraulicspneumatics.com/datasheet/save-energy-recycling-air-pdf-download <div class="node-body datasheet-body"><p>Although pneumatics technology provides a clean, high-power, low-cost means of implementing factory automation, the compressed-air costs associated with pneumatic systems are notoriously high&mdash;often accounting for up to 30% or more of the power costs at a plant. &nbsp;In the U.S. alone, it has been estimated that the energy...</p> <p><strong>Register or sign in below to download the full article in .PDF format, including high resolution graphics and schematics when applicable.</strong></p> <div class="gatedLogin well"> <div class="contentPadding clearfix"> <h2>Register for Complete Access (Valid Email Required)</h2> <p><p><img height="auto" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2016/10/10/SALARY_SURVEY_HPcover.jpg" width="100%" />By registering on Hydraulics &amp; Pneumatics now, you&#39;ll not only gain access to , you&#39;ll also receive a complimentary copy of <em>Hydraulics &amp; Pneumatics 2016 Salary &amp; Career Report</em>.</p> </p> <div class="gatedLoginButtons gated-register-button"> <div class="button-region"> <a href="/penton_ur/nojs/user/register?source=gated&nid=40931&regmode=1" class="ctools-use-modal btn btn-branded btn-wide ctools-modal-register" title="Register at this site.">Register</a> </div> <div class="loginLinkText"> Already registered? <a href="/penton_ur/nojs/login" class="ctools-use-modal ctools-modal-log_in" title="">Log In</a> here. </div> </div> </div> </div> </div> Gold Tue, 29 Nov 2016 19:55:00 +0000 40931 at http://hydraulicspneumatics.com Loader-Backhoe Offers Power, Low Maintenance, and Economy http://hydraulicspneumatics.com/hydraulic-pumps-motors/loader-backhoe-offers-power-low-maintenance-and-economy <div class="field-byline"> Alan Hitchcox </div> <div class="field-deck"> Case Construction Equipment's 580N EP is a lower-horsepower version of the 580N with the same lift capacity and breakout force with greater fuel efficiency. </div> <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/06/28/CASE%20580N%20EP%202%20web.jpg" style="width: 300px; height: 450px; margin: 5px; float: left;" title="Case Construction’s 580N EP loader backhoe relies on hydraulics for several useful features that make it more versatile, powerful, and fuel-efficient." />Case Construction Equipment, Racine, Wis., has added a Tier-4 Final version to its popular 580N series of loader backhoes. The 580N EP is a lower-horsepower version of the 580N, but maintains the same lift capacity and breakout force with greater fuel efficiency and a maintenance-free Tier-4 Final power package. Ease of operation, versatility, and low maintenance requirements make it especially well suited for entry-level contractors and the rental market.</p> <p>The 580N EP is powered by a 74 hp @ 2,200 rpm diesel engine driving a mechanical power train, and the machine&rsquo;s hydraulics.&nbsp; With a backhoe bucket breakout force and lift capacity of 11,517 lb and 2,858 lb, respectively, the 580N EP provides ample power and performance while keeping fuel, maintenance, and total cost of ownership low. Many of these benefits are attributed to the machine&rsquo;s hydraulics.</p> <p><strong>Anatomy of the Hydraulics</strong></p> <p>The 580N EP is driven by a<a href="http://sourceesb.com/parkerhannifincompumotordiv/distributors-and-vendors" target="_blank"> Parker Hannifin</a> P330 single-section gear pump, which delivers 28.5 gpm of flow at 3,350 psi whether in loader or backhoe function. Hydraulic fluid is filtered to 7 &micro;m through a full-flow, spin-on, return filter.</p> <p>Depending on requirements, the loader control uses a two- or three-spool open center monoblock valve. Either version has a single-lever manual control for lift and tilt functions. The three-spool valve uses a proportional electrohydraulic control for the auxiliary function. The lift lever has a positive hold <em>float</em> position and a <em>return-to-dig</em> feature to improve productivity.</p> <p>The backhoe function can use either manual or pilot control. The manual version uses a six- or seven-spool monoblock open-center control valve with an open-center parallel circuit for all functions. The pilot version uses a six-, seven-, or eight-spool sectional closed-center valve with circuits in parallel with a post-compensated, flow-sharing feature for simultaneous operation of all circuits.</p> <p>The 580N EP has an auxiliary hydraulic system with full flow available and is actuated through a proportional thumb switch with a detent on the loader-control handle. The auxiliary hydraulics includes a unidirectional system as standard, with bidirectional available. Its hydraulic control valve is equipped with an adjustable load-sensing relief valve to control attachment pressure and a six-position flow control selector with six detented, distinct flow settings. Actuation is accomplished using a cab floor pedal for machines fitted with manual backhoe controls or a left-hand joystick for those with pilot controls.</p> <div class="related-content"> <div class="related-label">Related Content</div> <p><a href="http://hydraulicspneumatics.com/cylinders-actuators/roadkill-retriever-relies-hydraulics">Roadkill Retriever Relies on Hydraulics</a></p> <p><a href="http://hydraulicspneumatics.com/200/IndZone/RailTrucking/Article/False/87865/IndZone-RailTrucking">Hydraulic System Makes Refuse Truck Quick, Quiet, and Efficient</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/tough-built-hydraulics-tackle-rough-terrain">Tough-Built Hydraulics Tackle Rough Terrain</a></p> </div> <p>Depending on equipment, the hydraulic system holds up to 28 gal of oil, with roughly half of that in the reservoir. The <img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/06/28/Parker%20P330%20gear%20pump%20web.jpg" style="width: 300px; height: 300px; margin: 5px; float: right;" title="The 580N EP is powered by Parker Hannifin’s P330 single-section gear pump that delivers 28.5 gpm of hydraulic flow at pressures to 3,350 psi for multiple work and auxiliary functions." />loader&rsquo;s two lift cylinders have a bore or 3.25 in, stroke of 30.2 in., and a piston rod diameter of 1.75 in. Its two dump cylinders have a bore and stroke of 3.00 in., 9.18 in., respectively, and also a 1.75-in. rod.&nbsp;</p> <p>The backhoe has a 4.50-in. bore 38.25-in. stroke boom cylinder with a 2.25-in. diameter piston rod. Its dipperstick (elbow joint) cylinder is has a 4.25-in. bore, 24.74-in. stroke, and also a 2.25-in. rod. The bucket cylinder has a 3.25-in bore, 35.35-in. stroke, and, again, a 2.25-in. rod. The backhoe&rsquo;s two swing cylinders are 3.75-in. bore, 11.50-in. stroke, and 2.00-in. rod.</p> <p><strong>Benefits of Hydraulics</strong></p> <p>The 580N EP offers several benefits over the competition and its previous counterparts.&nbsp; It comes standard with ProControl, a swing-dampening system that eliminates rebound on the backhoe, providing faster cycle times, less wear on components, greater operator precision, and less operator fatigue.</p> <p>Power Lift allows contractors to increase hydraulic capacities of the boom and bucket forces. This provides as much as 8% lifting more lifting power from a smaller, more fuel-efficient machine. It also reduces engine speed for greater control of the load being lifted.</p> <p>Another production-boosting feature is the industry&rsquo;s only fully integrated hydraulic quick coupler. This feature proves valuable for users who regularly change buckets or attachments because they save time and effort by being able to change implements without leaving the cab.</p> <p>The 580N EP offers added convenience because operators can quickly and easily attach any of several external tools to its auxiliary hydraulic system. This eliminates the need for transporting air compressors, generators, and other heavy equipment to a job site.</p> <p>A popular option is Case&rsquo;s Extendahoe feature, which adds even more versatility to the 580N EP. Extendahoe uses 3.00-in. bore cylinder in the dipperstick to extend the length of the dipperstick more than 40 in. In normal operation, the 580N EP can work in tight spaces. But when additional reach is needed, the Extendahoe cylinder can be activated for up to 42.05 in. of additional reach. Doing so allows more work to get done without moving the machine. It also provides access to sites where the backhoe can&rsquo;t get as close to the work area due to regulations or obstacles.</p> <p><em>For more on the 580N EP and the entire line of Case backhoe loaders, visit <a href="http://www.casece.com" target="_blank">CaseCE.com</a>.&nbsp;</em></p> <p><em><a href="http://sourceesb.com/" target="_blank"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/06/28/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 595px; height: 46px;" /></a></em></p> </div> http://hydraulicspneumatics.com/hydraulic-pumps-motors/loader-backhoe-offers-power-low-maintenance-and-economy#comments Hydraulic Pumps & Motors Tue, 29 Nov 2016 16:47:00 +0000 40921 at http://hydraulicspneumatics.com Programa de Entrenamiento en línea de Muncie Power Products en Español! http://hydraulicspneumatics.com/blog/programa-de-entrenamiento-en-l-nea-de-muncie-power-products-en-espa-ol <div class="node-body blog-body"><p>Muncie Power Products, Inc. se complace en anunciar que su programa de entrenamiento en l&iacute;nea para toma fuerzas (PTO) y sistemas hidr&aacute;ulicos m&oacute;viles&nbsp;M-Power Tech, ya est&aacute; disponible en espa&ntilde;ol.</p> <p>El programa en cuesti&oacute;n no se limita a simplemente mostrar los principios b&aacute;sicos, aplicaciones y selecci&oacute;n a manera de exposici&oacute;n, sino que se presenta como un sistema estructurado de entrenamiento que incluye <span style="font-size: 12.8px;">inclusive&nbsp;</span>ex&aacute;menes al final de cada m&oacute;dulo, de manera que cada individuo avance seg&uacute;n su disponibilidad y compresi&oacute;n de la materia. El entrenamiento se encuentra disponible completamente gratis, s&oacute;lo se requiere registrarse en la p&aacute;gina web indicada abajo.</p> <p>Para crear una nueva cuenta y obtener acceso al material, favor ingrese en: <a href="https://www.munciepower.com/training/spanish/login/signup.php">https://www.munciepower.com/training/spanish/login/signup.php</a></p> <p>Una vez cree su cuenta, puede ingresar nuevamente con sus credenciales a trav&eacute;s del siguiente enlace: <a href="https://www.munciepower.com/training/spanish/index_login.php">https://www.munciepower.com/training/spanish/index_login.php</a></p> <p>Considerando que contiene m&oacute;dulos de toma fuerza e hidr&aacute;ulica, se recomienda a todo tipo de personal lidiando con esta tecnolog&iacute;a: mantenimiento, gerencia de operaciones, optimizaci&oacute;n, ingenier&iacute;a de aplicaci&oacute;n, ingenier&iacute;a de dise&ntilde;o, etc. Entre los m&oacute;dulos que incluye podemos mencionar los siguientes:</p> <ul> <li>Conceptos B&aacute;sicos de Toma Fuerzas,</li> <li>Aspectos B&aacute;sicos de la Hidr&aacute;ulica,</li> <li>Componentes de Sistemas Hidr&aacute;ulicos,</li> <li>Productos para Equipos Recolectores,</li> <li>Aceite Hidr&aacute;ulico.</li> </ul> <p>Al ser un programa en l&iacute;nea, se puede acceder desde cualquier lugar y cada quien puede completar los m&oacute;dulos a su propio ritmo. Una vez completado el programa de capacitaci&oacute;n, cada participante obtiene un certificado por correo de Muncie Power Products.</p> <p>Para mayor informaci&oacute;n, favor &nbsp;visite: <a href="http://www.munciepower.com/support/training">http://www.munciepower.com/support/training</a>, o comun&iacute;quese con el departamento de capacitaci&oacute;n de Muncie Power al 1-800- 367-7867 ext. 3216.</p> <p><em>&iquest;Necesita asesor&iacute;as, entrenamiento o servicio para sus sistemas hidr&aacute;ulicos? Cont&aacute;ctenos&nbsp;para agendar una visita a sus instalaciones y apoyarle a optimizar su operaci&oacute;n: +1(855)462-7633, <a href="mailto:sales@eemtechnologies.com?subject=Visita%20a%20nuestras%20instalaciones">sales@eemtechnologies.com</a>, <a href="http://www.eemtechnologies.com">www.eemtechnologies.com.</a></em></p> </div> http://hydraulicspneumatics.com/blog/programa-de-entrenamiento-en-l-nea-de-muncie-power-products-en-espa-ol#comments Basics of Design Reference Material H&amp;P en tu idioma! Mon, 28 Nov 2016 13:00:00 +0000 40901 at http://hydraulicspneumatics.com Really! A Pneumatic Airplane? http://hydraulicspneumatics.com/blog/really-pneumatic-airplane <div class="node-body blog-body"><p><em>A reader in Germany recently contacted me to see if I could provide a copy of an article from 1959 on servovlaves. I told him I could, and that I&#39;d be happy to fulfill his request on one condition: Why on earth did he want a nearly 60 year old article on servovalves? He explained that he was working on his masters thesis on servovalves and needed a comprehensive example of what was available in the 1950s to show how far the technology has advanced. And it&#39;s a great article: 12 pages. </em></p> <p><em>Granted, this has nothing to to with a pneumatic airplane, but when I was looking for the article, I stumbled across the one about the airplane. And, no, it wasn&#39;t experimental. It was in use all over the world, and some of the aircraft are still flying today. </em></p> <p><em>Continue on to read this interesting article.</em></p> <h3>All-pneumatic aircraft</h3> <p>By JOHN D. HULL, JR., and A. E. SCHMIDLIN<br /> Walter Kidd &amp; Co., Belleville, N. J.</p> <p><em>Many factors favored the use of pneumatic systems on the F-27, most significant of which was an approximate 100-lb weight saving over electrical and hydraulic systems.</em><br /> <em>&bull; Lighter weight</em><br /> <em>&bull; Faster operation</em><br /> <em>&bull; No flammable liquids</em><br /> <em>&bull; Cleaner and easier to maintain</em></p> <p><a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Piedmont%20F-27.jpg" target="_blank"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Piedmont%20F-27.jpg" style="width: 333px; height: 185px; float: right; margin-left: 5px; margin-right: 5px;" title="Piedmont Airlines' first Fairchild F-27 takes off from Hagerstown, Md in October 1958. [Piedmont flew this particular aircraft for 10 years before selling it to Air Manilla in 1968.] Click on image for larger view." /></a>Fairchild&rsquo;s F-27 is the first American-made plane to use a complete pneumatic system to operate landing gear, wheel brakes, nose wheel steering, propeller brakes, and passenger door operation. It also has an emergency air supply that will lower the landing gears and operate the brakes.</p> <p>Compressed air for the system is supplied by two 2-cfm, 3300-psi compressors located in each of the engine nacelles. The compressors are driven through a gearbox by Rolls Royce Dart engines, which power the aircraft. They carry their own individual dehydration and filtration equipment to supply clean, dry air at a pressure of 3300 psi. These two compressor packages are isolated from each other by a system of check valves and can deliver air independently to replenish air to storage if an engine fails. Ground charging the system can be done through the dehydration and filtration circuit.</p> <p><a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Pg%20127A%20drawing.jpg" target="_blank"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Pg%20127A%20drawing.jpg" style="width: 300px; height: 320px; float: left; margin-left: 5px; margin-right: 5px;" title="Nacelle housed compressor delivers 2 cfm at 3300 psi. Check valve separates the two identical nacelle circuits. Click on image for larger view." /></a>Three independent reservoirs isolated by a series of check valves store the system&rsquo;s air volume. The main storage is a 750-cu. in. steel cylinder, and the emergency storage is a 100-cu. in. steel cylinder. It&rsquo;s fed by the main storage and then isolated during flight so that the brake system will have sufficient pressure for a satisfactory operation. The main storage can be depleted to far below the braking pressure of 1000 psi because lowering of the landing gears only require 100 psi, and steering, 220 psi.</p> <p>Locating most of the control valves on a panel simplifies service and maintenance. It also ensures uniform environment for most of the control elements. The F-27 system is divided into at least five functional sub-systems.</p> <p><strong>Landing Gear</strong> &mdash; This circuit has a solenoid-operated control valve, a manual selector valve for emergency, a pressure reducer to control lowering, and a blowdown valve in the gear extension line. At the selection of the landing gear switch, the solenoid valve supplies air at 1000 psi to retract the gears, simultaneously venting the 1000-psi extension air. The opposite is true for extension. Electrical failure will not affect the solenoid valve because a mechanical lock will hold its selected position.</p> <p><a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Pg%20127B%20drawing.jpg" target="_blank"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Pg%20127B%20drawing.jpg" style="width: 366px; height: 228px; float: right; margin-left: 4px; margin-right: 4px;" title="Six cylinders actuate and lock the landing gear. 1000 psi air powers the retraction and 100 psi the extension strokes. Click on image for larger view." /></a>A manually operated blowdown valve vents the extension air when the landing gears are mechanically locked in the down position, leaving the entire system at atmospheric pressure for maintenance.</p> <p>Manual selection for emergency gear lowering simultaneously vents the 1000 psi on the retraction side of the actuator, and supplies 100 psi from emergency storage to unlock and lower the landing gear. Grease dampers built into the landing gear actuators snub the motion of the gear. The uplock actuators are single-acting, spring-return cylinders that operate with either normal or emergency air, as do all the actuators for the extension stroke.</p> <p><strong>Nose Wheel Steering</strong> &mdash; This circuit includes a solenoid valve, a pressure reducer, a servo valve, and an air motor-ball screw linear actuator. The solenoid valve controls the passage of air to the steering system and is operated automatically by switches arranged on the nose wheel which shut off the steering system when angles of greater than 60&deg; port or starboard are reached or when the nose wheel is off the ground. The steering actuator has a self-centering feature that centers the nose wheel when the air is shut off to the air motor, ensuring that the nose wheel is centered before it is retracted.</p> <p><a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Pg%20128%20drawing-combo.jpg" target="_blank"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Pg%20128%20drawing-combo.jpg" style="width: 366px; height: 284px; float: left; margin-left: 5px; margin-right: 5px;" title="Air motor-powered ball screw actuator in the nose wheel steering system is a unique device used for centering the nose wheel prior to retraction. Pneumatic circuit uses a mechanical servo valve for metering the required air. Click on image for larger view." /></a>The ball screw actuator is designed to give free castoring for the high loadings that occur during towing operations. The resulting use of a ball screw and many of the basic design features of the steering system were indicated by a nose gear design that had preceded the development of this nose wheel steering system. There is sufficient gain in steering performance in the F-27 to make it satisfactory.</p> <p>The servovalve is operated through a linkage connected to a steering wheel in the cockpit to provide for steering under load at any condition between inching and maximum rates.</p> <p><strong>Wheel Brakes</strong> &mdash; The system uses two foot-operated brake valves, connected in series with rapid exhaust valves, which allow rapid depressurization of the wheel brakes. These brake valves are of the variable pressure delivery type and are operated through a torsion bar linkage from the brake pedals in the cockpit. An over-riding emergency system is controlled by a hand-operated dual brake valve. This valve allows individual control of each wheel, so that differential breaking for steering, as well as braking, can be accomplished during an emergency landing.</p> <p><strong>Propeller Brakes</strong> &ndash; This circuit uses two solenoid valves that meter the air to each of the propeller&rsquo;s brakes, preventing wind-milling of the props with the engine off.</p> <p><strong>Passenger Entrance Door</strong> &ndash; This circuit is operated by a pneumatic actuator through the action of a solenoid valve. The system will damp properly during emergency door openings and yet will not leak air in the passenger compartment during flight, since no stored air is required.</p> <h3>Why pneumatics for aircraft actuation?</h3> <ol> <li>Weight &ndash; Pneumatic systems are considerably lighter in weight than their hydraulic or electrical equivalents. This difference becomes more marked with the wider use of fire-resistant fluids.</li> <li>Viscosity &ndash; Air is stable within the wide temperature ranges encountered by present aircraft.</li> <li>Fluid Availability &ndash; Turbine or ram air is readily available for either storage or makeup.</li> <li>Rapid Actuation &ndash; Response rates in pneumatic systems are faster, increasing margin of safety.</li> <li>Cleanliness &ndash; Lack of fluid-trapped dirt built up on operating components and fittings reduce maintenance time.</li> <li>Versatility &ndash; Separate two or three pressure systems for the same air-craft are economically feasible.</li> </ol> <p><em>This article was originally published in the May 1959 issue of </em><strong>Applied Hydraulics &amp; Pneumatics</strong><em> magazine, pp 126 to 128..</em></p> </div> http://hydraulicspneumatics.com/blog/really-pneumatic-airplane#comments Aerospace Pneumatic Valves The Hitch Post Tue, 22 Nov 2016 15:20:00 +0000 40891 at http://hydraulicspneumatics.com NEW APP For Hydraulic Troubleshooting http://hydraulicspneumatics.com/blog/new-app-hydraulic-troubleshooting <div class="node-body blog-body"><p>There aren&#39;t too many REAL shortcuts in life. But I have a nifty gift for all H&amp;P readers today that will enable you to punch way above your weight when you have a hydraulics problem to deal with.<br /> <br /> It&#39;s my NEW hydraulic troubleshooting APP. And it&#39;s available for FREE download now from Google Play and Apple App Stores.<br /> <br /> As you may already be aware, when it comes to hydraulic troubleshooting, I wrote THE book on the subject: &#39;<a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=thth"><strong>The Hydraulic Troubleshooting Handbook</strong></a>&#39;.<br /> <br /> And so now I&#39;ve built &#39;The Hydraulic Troubleshooting App&#39;.<br /> <br /> This nifty tool won&#39;t make you a hydraulics expert. Nor does it present the solution to every hydraulic problem on the push of a button. What it does do is give you a time-tested and proven framework for effective troubleshooting--whether you&#39;re a novice or a pro.<br /> <br /> <strong><a href="https://youtu.be/N7L-vOwnIqk">Watch this 2-minute demonstration video for a quick overview</a></strong>.</p> <p>To secure your free copy of this nifty tool today, grab your smartphone or tablet, go to the Google Play or Apple App Store and search for &quot;hydraulic troubleshooting&quot;, then look for the icon with a bright-red hydraulic cylinder.<br /> <br /> For YOUR troubleshooting success!</p> </div> http://hydraulicspneumatics.com/blog/new-app-hydraulic-troubleshooting#comments Hydraulics At Work Tue, 22 Nov 2016 00:31:00 +0000 40881 at http://hydraulicspneumatics.com Do You Serve the Packaging Industry? http://hydraulicspneumatics.com/blog/do-you-serve-packaging-industry <div class="node-body blog-body"><p>InterOcean Advisors LLC is an investment bank that provides merger, acquisition, and capital-raising advisory services to manufacturing companies. Periodically they publish marketing and financial reports that I think would be of interest to people involve in the industry the reports are written about.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/IO%20report_0.png" style="width: 150px; height: 200px; float: right; margin-left: 4px; margin-right: 4px;" />InterOcean&#39;s latest industry report focuses on the historical performance, current challenges, and near-term outlook of the global packaging industry. They report that although the industry has enjoyed historical value creation above that of most market indices, the outlook is becoming more&nbsp; challenging given the slow growth of the U.S. and many other developed economies.</p> <p>Many industry participants are becoming squeezed between large raw material suppliers and an increasingly consolidated&nbsp; base. The pursuit of scale is becoming a necessity to counteract this supply-chain pressure. In addition many sectors in packaging are either mature or remain highly fragmented. These factors have led to a market that is as active as it has ever been for the industry and is likely to continue for the foreseeable future.</p> <p><strong><a href="http://ioadvisors.com/wp-content/uploads/2016/11/InterOcean-Packaging-Industry-Overview-Q3-2016.pdf" target="_blank">Click here</a></strong> to view or download a PDF of the report.</p> <p><em>Chicago-based InterOcean has deep expertise in the aerospace &amp; defense, automotive, building products, capital equipment, distribution &amp; business services, electrical products, flow control, metals, and plastics &amp; packaging sectors. For more information, visit their website at <a href="http://ioadvisors.com/" target="_blank">ioadvisors.com</a>.</em></p> </div> http://hydraulicspneumatics.com/blog/do-you-serve-packaging-industry#comments Packaging The Hitch Post Wed, 16 Nov 2016 14:59:00 +0000 40871 at http://hydraulicspneumatics.com November 2016 http://hydraulicspneumatics.com/hydraulics-pneumatics/2016-11-15 <div class="node-body magazine_issue-body"></div> <fieldset class="fieldgroup group-mag-teasers"> <div class="field-mag-teaser"> <a href="/hydraulic-pumps-motors/loader-backhoe-offers-power-low-maintenance-and-economy">Loader-Backhoe Offers Power, Low Maintenance, and Economy</a> <a href="/hydraulic-pumps-motors/diagnose-pumps-your-smartphone">Diagnose Pumps with Your Smartphone</a> <a href="/hydraulic-valves/so-you-think-you-know-shuttle-valves">So, You Think You Know Shuttle Valves?</a> </div> </fieldset> <fieldset class="fieldgroup group-publication-info"><legend>Publication Info</legend> </fieldset> Tue, 15 Nov 2016 05:00:00 +0000 40941 at http://hydraulicspneumatics.com Bio-Based Hydraulic Fluid: Its Application And Use http://hydraulicspneumatics.com/blog/bio-based-hydraulic-fluid-its-application-and-use <div class="node-body blog-body"><p>A recent client engaged me to advise them on an application that required the use of biodegradable hydraulic fluid. This client was tendering on an earthmoving project located in environmentally sensitive wetland. A condition of the contract was that the hydraulic systems of all equipment employed on the project use biodegradable fluid to minimize pollution in the case of oil leaks, especially hydraulic hose failures.<br /> <br /> One category of biodegradable hydraulic fluids are bio-based. These fluids use canola (rapeseed), sunflower or soybean oil as the base oil. Under certain conditions, the properties of these fluids can be equivalent to that of mineral oil based, anti-wear hydraulic fluids. But due to limited testing, most hydraulic component manufacturers recommend reducing maximum permissible operating pressure (load) when using these hydraulic fluids, to ensure no reduction in hydraulic component life.<br /> <br /> After reviewing the available technical data on the hydraulic components fitted to the machinery being employed, a reduction in operating pressure to 80% of that permissible for mineral oil was considered prudent.<br /> <br /> With this in mind, the extraordinary costs that the contractor needed to consider in their bid included not only the expense of the fluid, and draining and flushing the hydraulic system to convert from mineral oil to vegetable oil and back again, but also the costs associated with derating the machinery.<br /> <br /> A reduction in system operating pressure means a reduction in actuator force. This means that a hydraulic excavator that has its operating pressure reduced by 20% will experience a 20% reduction in &quot;break-out&quot; force. The commercial implication of this meant that the contractor needed to cost the job allowing for the use of bigger machinery than they otherwise would have.<br /> <br /> Initiatives such as renewable energy and non-food uses for agricultural production have driven advances in bio-based fluid technology. Once these fluids can compete with mineral oils on price and performance, their usage will increase and more data relating to hydraulic component life will become available.<br /> <br /> When this point is reached, bio-based hydraulic fluids will no longer be relegated to special applications and the extraordinary costs associated with using them, as illustrated in the above example, will no longer apply.But until then, switching to these fluids with out due care and consideration can be a costly mistake. And to discover six other costly mistakes you want to be sure to avoid with your hydraulic equipment, <strong><a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=smr">get &quot;Six Costly Mistakes Most Hydraulics Users Make... And How You Can Avoid Them!&quot; available for FREE download here</a></strong>.</p> </div> http://hydraulicspneumatics.com/blog/bio-based-hydraulic-fluid-its-application-and-use#comments Hydraulics At Work Tue, 15 Nov 2016 00:30:00 +0000 40851 at http://hydraulicspneumatics.com Hydraulics & Pneumatics Products of the Week (11/14 - 11/21) http://hydraulicspneumatics.com/products/hydraulics-pneumatics-products-week-1114-1121 <div class="node-body gallery-body"><p><span style="font-size: 12.8px;">From cabinet-free power units that integrate a frequency converter, motor, pump, and sensors into a single unit, to&nbsp;industrial pressure transmitters, Hydraulic &amp; Pneumatics&#39; product gallery includes the newest components and systems that will ensure safe and effective&nbsp;fluid-power designs.&nbsp;</span></p> <p><a href="http://sourceesb.com/" style="color: rgb(14, 95, 139); font-family: Georgia, Times, &quot;Times New Roman&quot;, serif; font-size: 15px;" target="_blank"><img alt="" src="http://machinedesign.com/site-files/machinedesign.com/files/uploads/2016/02/SourceESB_Lookin_For_Parts_Banner_0.jpg" style="display: block; width: 595px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/products/hydraulics-pneumatics-products-week-1114-1121#comments Products News Mon, 14 Nov 2016 15:39:00 +0000 40831 at http://hydraulicspneumatics.com Proud to be a Part of Something Big http://hydraulicspneumatics.com/other-technologies/proud-be-part-something-big <div class="field-byline"> Ronald T. Klimko </div> <div class="field-deck"> H&P is now a proud member of the Pascal Society </div> <div class="node-body article-body"><p style="margin-top: 0px; margin-bottom: 0px; line-height: 21.600000381469727px; font-family: -webkit-standard; font-size: 18px;">&nbsp;</p> <p style="margin-top: 0px; margin-bottom: 0px; line-height: 21.600000381469727px; font-family: -webkit-standard; font-size: 18px;"><a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/RKlimko2.jpg"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/RKlimko2.jpg" style="width: 222px; height: 350px; float: right; margin-left: 4px; margin-right: 4px;" /></a><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">As with any technology, ongoing research in fluid power is essential to its continued growth. For decades, the US lagged behind other countries in bringing academia and industry together to conduct research. A major step was taken&nbsp;to change this&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">10 years ago with&nbsp;</span></span><a href="http://www.nfpa.com/" target="_blank"><span class="s4" style="line-height: 14.399999618530273px; font-size: 12px; text-decoration: underline; font-family: Times; color: rgb(0, 0, 255);"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">NFPA</span></span></a><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&rsquo;s</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;formation of the&nbsp;</span></span><a href="http://www.ccefp.org/" target="_blank"><span class="s4" style="line-height: 14.399999618530273px; font-size: 12px; text-decoration: underline; font-family: Times; color: rgb(0, 0, 255);"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">Center for Compact &amp; Efficient Fluid Power (CCEFP)</span></span></a><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">. </span></span></p> <p style="margin-top: 0px; margin-bottom: 0px; line-height: 21.600000381469727px; font-family: -webkit-standard; font-size: 18px;">&nbsp;</p> <p style="margin-top: 0px; margin-bottom: 0px; line-height: 21.600000381469727px; font-family: -webkit-standard; font-size: 18px;"><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">The CCEFP was Initially funded through&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">public&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">money</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">,</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;but industry leaders have developed programs for ongoing funding the NFPA&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">Technology and Education&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">Foundation. An important segment of the foundation is&nbsp;</span></span><a href="http://www.nfpa.com/nfpafoundation/pascalsociety.aspx" target="_blank"><span class="s4" style="line-height: 14.399999618530273px; font-size: 12px; text-decoration: underline; font-family: Times; color: rgb(0, 0, 255);"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">The Pascal Society</span></span></a><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">, which combines</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;the contributions of many individuals into a single effort</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">.</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">In doing so,</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;t</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">he Pascal Society&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">aims</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;to develop the resources, tools, and people to meet the technology and workforce needs of the U.S. fluid power industry. </span></span></p> <p style="margin-top: 0px; margin-bottom: 0px; line-height: 21.600000381469727px; font-family: -webkit-standard; font-size: 18px;">&nbsp;</p> <p class="s7" style="margin-top: 5px; margin-bottom: 5px; line-height: 21.600000381469727px; font-family: -webkit-standard; font-size: 18px;"><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">A major goal is the support of pre-competitive research projects through the CCEFP. These projects are important because they connect advanced-degree students to our industry, create more infrastructure in our leading universities, and increase the ability of those universities to teach fluid power to their undergraduates. The&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">Pascal&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">Society&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">helps</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">engage</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;its industry members in setting a research strategy, selecting projects most likely to benefit our industry, and reviewing the progress of the students working on them.&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">This has proven to be an effective way to&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">introduce talented&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">young&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">engineers to&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">fluid power</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;and&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">draw </span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">them</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;"> into our industry. </span></span></p> <p class="s7" style="margin-top: 5px; margin-bottom: 5px; line-height: 21.600000381469727px; font-family: -webkit-standard; font-size: 18px;">&nbsp;</p> <p style="margin-top: 0px; margin-bottom: 0px; line-height: 21.600000381469727px; font-family: -webkit-standard; font-size: 18px;"><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/04/PASCAL.png" style="width: 188px; height: 188px; float: left; margin-left: 4px; margin-right: 4px;" />I mention all this because&nbsp;</span></span><span class="s5" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times; font-style: italic;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">Hydraulics &amp; </span></span><span class="s5" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times; font-style: italic;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">Pneumatics</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;"> recently</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;"> became one of the newes</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">t members of the Pascal Society. Our monetary contributions to this worthwhile organization is the least we could do to give back to the industry we have been part of&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">since 1948</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">. But I also felt compelled to do more, so I also agreed to serve on&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">NFPA&rsquo;s&nbsp;</span></span><a href="http://www.nfpa.com/fluidpower/fluidpowertechnologyroadmaps.aspx" target="_blank"><span class="s6" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times; text-decoration: underline; color: rgb(0, 0, 255);"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">Roadmap Committee</span></span></a><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">.&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">Member</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">s</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;of this committee</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;focus on advancements they&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">feel</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;w</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">ill&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">help meet the future needs of&nbsp;</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">our industry</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">&nbsp;(in my case, the Industrial Internet of Things)</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">, expand fluid power into new markets, and attract the best a</span></span><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">nd brightest students to field.</span></span></p> <p style="margin-top: 0px; margin-bottom: 0px; line-height: 21.600000381469727px; font-family: -webkit-standard; font-size: 18px;">&nbsp;</p> <p style="margin-top: 0px; margin-bottom: 0px; line-height: 21.600000381469727px; font-family: -webkit-standard; font-size: 18px;"><em><span class="s3" style="line-height: 14.399999618530273px; font-size: 12px; font-family: Times;"><span class="bumpedFont15" style="line-height: 21.600000381469727px; font-size: 1.5em;">For information on how to join The Pascal Society, contact Sue Chase at&nbsp;(414) 778-3376&nbsp;or&nbsp;</span></span><a href="mailto:schase@nfpa.com?subject=Inquiry%20from%20Hydraulics%20%26%20Pneumatics%20webite">schase@nfpa.com</a></em></p> <h2>&nbsp;</h2> </div> Other Technologies Mon, 14 Nov 2016 05:00:00 +0000 40841 at http://hydraulicspneumatics.com NFPA Reveals Latest CCEFP Projects http://hydraulicspneumatics.com/hydraulic-pumps-motors/nfpa-reveals-latest-ccefp-projects <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/E-Lanke.jpg" style="width: 250px; height: 329px; float: right;" title="Eric Lanke, CEO, NFPA" />Eric Lanke, CEO of the <a href="http://www.nfpa.com" target="_blank">National Fluid Power Association (NFPA)</a>, explains that many people are surprised when they learn that a group of fluid power industry professionals&mdash;not academia&mdash;provides the majority of input for deciding which potential fluid power research projects will receive funding. The research projects are administered by the <a href="http://www.ccefp.org" target="_blank">Center for Compact &amp; Efficient Fluid Power (CCEFP)</a>, and the industry professionals make up CCEFP&rsquo;s Industry Engagement Committee, which elects its own leadership.</p> <p>Lanke says that since the NFPA began providing financial support for CCEFP, seats on the Industry Engagement Committee have been extended to silver and gold donors in the Pascal Society, which combines financial and volunteer contributions into one concerted effort to develop the resources, tools, and people needed to take on research projects. Once the IEC selects the research topics, and the various proposals aligning with those prioritized topics have been submitted, the committee&rsquo;s second major responsibility comes into play: Reviewing and selecting those that will actually receive funding.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/other-technologies/exciting-times-fluid-power">Exciting Times for Fluid Power</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-fluids/next-chapter-ccefp">The Next Chapter for the CCEFP</a></p> <p><a href="http://hydraulicspneumatics.com/events/coalition-human-scale-fluid-power-calls-experts">Coalition for Human-Scale Fluid Power Calls on Experts</a></p> </div> <p>&ldquo;The committee first aligns industry reviewers with the appropriate expertise with each corresponding cluster of research proposals,&rdquo; says Lanke. &ldquo;Industry professionals involved in pneumatics, for example, should not be asked to review research proposals involving hydraulics, and vice versa. So a fair amount of sorting goes on, ensuring that reviewing of proposals is divided equally among the committee members, and that each committee member reviews the proposals clearly within his or her field of expertise.&rdquo;</p> <p>The review criteria consist of 15 areas divided into three major sections:</p> <p><strong>Alignment</strong>&mdash;How well-aligned is the proposal with the goals and objectives of the CCEFP? Does it represent a fundamental advance in fluid power knowledge and understanding? Does it function at a systems level? Does it strategically fit with the CCEFP&rsquo;s other projects, and can it be demonstrated on one of the CCEFP&rsquo;s test beds?</p> <p><strong>Risk</strong>&mdash;How likely is it that the proposal will be successful? What are its metrics? Are they appropriate? Are there clear deliverables upon successful conclusion? What are they? Is the research team up to the task? Is the budget appropriate for its scope?</p> <p><strong>Reward</strong>&mdash;If successful, how broadly applicable will the results be to the fluid power industry? How likely is the industry to participate in the proposal execution? How novel is the breakthrough? Does the research team have sources of external support for potential continuation into commercialization?</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/NFPA-logo-400.jpg" style="width: 200px; height: 200px; float: left;" />Lanke continues, &ldquo;Ideally, the committee funds a portfolio of research projects spread across the risk/reward spectrum. Some low-risk/low-reward projects ensure progress is being made, but some high-risk/high-reward projects help push the envelope in the industry&rsquo;s key technical barriers. Other considerations include a balance between pneumatics and hydraulics, range of applications (off-road vehicles, industrial, medical, human-scale, etc.), and equitable distribution among institutions. Once all scores are in, the proposals are looked at holistically, and decisions are made for a final funding recommendation.&rdquo;</p> <p>Based on these recommendations by the Industry Engagement Committee, CCEFP Director Kim Stelson selects and approves the new research projects. The result of this process, between December and March of this year, culminates in the selection of 10 research projects awarded for funding for the next two-year cycle.&rdquo;</p> <p>Projects selected for the current cycle include:</p> <p><strong>AC Hydraulic Pump/Motor</strong>&mdash;Although a high percentage of electrical systems are alternating current, virtually no hydraulic ac systems are available.&nbsp; This project will model, design, prototype, and experimentally characterize a novel pump based on ac hydraulics for the application of displacement control.</p> <p><strong>Simulation, Rheology and Efficiency of Polymer Enhanced Fluids</strong>&mdash;This project will bridge the gap between the fundamental behavior of polymer-enhanced fluids and the performance of complex fluid power systems.</p> <p><strong><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/CCEFP-logo.jpg" style="width: 200px; height: 200px; float: right;" />Efficient, Integrated, Freeform Flexible Hydraulic Actuators</strong>&mdash;Additively manufactured, flexible, fluidic actuating systems that exhibit an order of magnitude higher specific power than existing systems and maximize system efficiencies through model-based optimal control will be developed.</p> <p><strong>Four-Quadrant Multi-Fluid Pump/Motor&mdash;</strong>This project will develop a high-efficiency, mechanically controlled, four-quadrant pump/motor capable of pumping oil, water, and corrosive fluids.</p> <p><strong>Hybrid MEMS (Microelectromechanical Systems) Proportional Fluid Control Valve</strong>&mdash;Extremely efficient pneumatic proportional valves will be created by exploiting piezoelectric technology.</p> <p><strong>Portable Pneumatically Powered Orthoses&mdash;</strong>This project will drive the development of enabling fluid power technologies to miniaturize fluid power systems for use in novel, human-scale, untethered devices in the 10- to 100-W range.</p> <p><strong>Investigation of Noise Transmission through Pump Casing</strong>&mdash;This project will model the transmission of the vibrations from a swashplate-type axial-piston pump through the pump&rsquo;s casing to the generation of acoustical noise in the surrounding environment.</p> <p><strong>Control and Prognostics of Electrohydraulic Machines</strong>&mdash;The control approach for load handling hydraulic machines that combine oscillation damping features with system prognostic functions will be formulated.</p> <p><strong>Free-Piston Engine Based on Off-Road Vehicles</strong>&mdash;The design, control, and testing of a hydraulic free-piston engine will be investigated for off-road vehicles to improve fuel efficiency and reduce emissions.</p> <p><strong>Controlled Stirling Power Unit</strong>&mdash;This project will develop a completely silent, high-energy, dense, and portable fluid power supply using a Stirling device.</p> <p><em>For more information on the CCEFP and topics discussed here, visit <a href="http://www.ccefp.org" target="_blank">www.ccefp.org</a>.</em></p> <p><em><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></em></p> </div> http://hydraulicspneumatics.com/hydraulic-pumps-motors/nfpa-reveals-latest-ccefp-projects#comments Controls & Instrumentation Hydraulic Pumps & Motors Hydraulic Valves News Fri, 11 Nov 2016 14:07:00 +0000 40821 at http://hydraulicspneumatics.com Football Hall of Famers Offer Keynote Speech at Work Truck Show http://hydraulicspneumatics.com/news/football-hall-famers-offer-keynote-speech-work-truck-show <div class="node-body article-body"><p>The Association for the Work Truck Industry (NTEA) welcomes&nbsp;Terry Bradshaw and&nbsp;Howie&nbsp;Long&nbsp;to be keynote speakers at the&nbsp;<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.worktruckshow.com&amp;d=DgMFAg&amp;c=H98lxvesFHsl1ZPcztRg4g&amp;r=3fsV7CFC6BJbd5tYi_9-vWv5Co1Xd2T1-XGR8JEOHIc&amp;m=t7sAdDuMp9xYsPZdSPLVY796Rlc3c_XDiVzoGktp-jk&amp;s=0FZvmxbFWXFkE0mA8MC5oXlwdYDiHLhMgNRTJVAAdXA&amp;e=">The Work Truck Show&nbsp;2017</a>, which stands as the largest work-truck event in&nbsp;North&nbsp;America. These two Pro Football Hall of&nbsp;Fame-ers&nbsp;will share business insights that tie into the Hall&#39;s five core values:&nbsp;commitment, integrity, courage, respect, and excellence.&nbsp;Their address takes place Thursday, March 16, as part of the President&rsquo;s Breakfast &amp;&nbsp;NTEA&nbsp;Annual Meeting.&nbsp;</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/eiffel-tower-gets-lift-hydraulics">Eiffel Tower Gets Lift from Hydraulics</a></p> <p><a href="http://hydraulicspneumatics.com/entertainment/hydraulics-set-stage-biggest-water-show-earth">Hydraulics Set the Stage at the Biggest Water Show on Earth</a></p> <p><a href="http://hydraulicspneumatics.com/cylinders-actuators/bionic-kangaroo-brought-life-pneumatics">Bionic Kangaroo Brought to Life by Pneumatics</a></p> </div> <p>The 2017 event is scheduled for March 14&ndash;17 at the Indiana Convention Center in Indianapolis, Indiana. Educational sessions begin March 14, and the exhibit hall is open March 15&ndash;17.</p> <p>&ldquo;You can expect this keynote address to be both informative and entertaining,&rdquo; says Adam Keane, 2017 NTEA Convention chairman, and executive vice-president of Allied Body Works Inc. &ldquo;Long and Bradshaw know a lot about teamwork and achievement. They are both successful athletes, business owners and movie stars, as well as community and charitable supporters. Their style is fun, and their message inspirational.&rdquo;</p> <p>Bradshaw was the first quarterback to win four Super Bowl championships, and piloted the Pittsburgh Steelers while calling his own plays. After retiring from the game in 1984, he went on to become an award-winning broadcast sports analyst. He is also a movie and television actor, an author of five books, a breeder of championship quarter horses, and has recorded four albums as a gospel/country singer. In addition, he owned his own cattle-breeding business.&nbsp;</p> <p>Regarded as one of the most-feared defensive players in the NFL, Long was a member of the Oakland/Los Angeles Raiders for 13 seasons, including the Super Bowl-winning 1984 season. He has won an&nbsp;Emmy award for his&nbsp;career as a sports analyst, and has appeared in five movies. He has been a television-advertising brand ambassador for many national brands, and co-authored the book, &ldquo;Football for Dummies.&rdquo; He is a co-owner and contributor to the interactive digital sports network,The Experts Network (TXN). He is active in a number of charitable and philanthropic endeavors, including the Boys and Girls Clubs of America.</p> <p>To purchase a ticket and register for the Show, visit <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.worktruckshow.com_&amp;d=DgMFAg&amp;c=H98lxvesFHsl1ZPcztRg4g&amp;r=3fsV7CFC6BJbd5tYi_9-vWv5Co1Xd2T1-XGR8JEOHIc&amp;m=t7sAdDuMp9xYsPZdSPLVY796Rlc3c_XDiVzoGktp-jk&amp;s=00Bh72Q_VvCJnmX13zhff0pVWwQkLBv59DADei6BHZg&amp;e=">worktruckshow.com</a>.&nbsp;</p> </div> http://hydraulicspneumatics.com/news/football-hall-famers-offer-keynote-speech-work-truck-show#comments News Thu, 10 Nov 2016 21:01:00 +0000 40811 at http://hydraulicspneumatics.com <p>Terry Bradshaw and&nbsp;<span data-scayt-lang="en_US" data-scayt-word="Howie">Howie</span>&nbsp;Long will be the keynote speakers at the 2017 Work Truck Event, which is scheduled for March 14&ndash;17 at the Indiana Convention Center in Indianapolis, Indiana.&nbsp;</p> Courtesy of Pro Football Mock Implementing Independent Metering Systems http://hydraulicspneumatics.com/hydraulic-valves/implementing-independent-metering-systems <div class="field-deck"> Sponsored by Eaton </div> <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/05/Eaton_logo-262x100.gif" style="width: 180px; height: 69px; float: right;" />What is independent metering? How do I know when I need to consider using independent metering on my hydraulic system? What are some of the major benefits of using independent metering? What types of diagnostics are available when using independent metering?&nbsp;</p> <p>Download <em><strong>FAQs on Implementing Independent Metering Systems</strong></em> sponsored by <strong>Eaton</strong> to get the answers.</p> <script type="text/javascript"> document.write('\ <iframe style="height: 1400px; width: 100%; border:0;” frameBorder="0" scrolling="no"\ src="http://pages.hydraulicspneumatics.com/HP_Digital_Eaton_IndependentMeteringSystems_FAQ_JR_110716?partnerref=' + getParameterByName("partnerref") + "&elq=" + getParameterByName("elq2") + "&code=" + getParameterByName("code") + "&PK=" + getParameterByName("PK") + "&PR=" + getParameterByName("PR") + '"></iframe>'); function getParameterByName(name) { var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search); if (match == null) return ""; return match && decodeURIComponent(match[1].replace(/\+/g, ' ')); } </script></div> http://hydraulicspneumatics.com/hydraulic-valves/implementing-independent-metering-systems#comments Design FAQs Hydraulic Valves Thu, 10 Nov 2016 19:49:00 +0000 40781 at http://hydraulicspneumatics.com A Smart New Tool for Predictive Maintenance http://hydraulicspneumatics.com/maintenance/smart-new-tool-predictive-maintenance <div class="field-byline"> Matt Belisle, PumpMD </div> <div class="field-deck"> Your smartphone can monitor a hydraulic pump’s health to keep it out of the ER. </div> <div class="node-body article-body"><table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/smart-new-tool-predictive-maintenance-pdf-download">Download this article as a .PDF file.</a><br /> This file type includes high-resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> <p><a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/Hand-Shot.jpg"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/Hand-Shot.jpg" style="width: 366px; height: 242px; float: right; margin-left: 5px; margin-right: 5px;" title="This closeup view of the PumpMD shows three LEDs that indicate status of a hydraulic pump’s case-drain flow, pressure, and temperature." /></a>A hydraulic pump doesn&rsquo;t fail only when it doesn&rsquo;t put out the required flow. A pump actually fails once its efficiency falls below its manufacturer&rsquo;s operating specifications, including overall efficiency.</p> <p>Inefficiency can be caused by reasons too numerous to mention here. Therefore, this discussion will be limited to axial-piston pumps that were properly installed but, for one reason or another, begin to lose efficiency over time. The most common causes for loss in efficiency are fluid contamination, poor maintenance, and using the wrong hydraulic fluid for the operating conditions.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/blog/hydraulic-maintenance-imperative">The Hydraulic MAINTENANCE Imperative</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-fluids/check-fluid-temperature-your-smartphone">Check Fluid Temperature&hellip;From Your Smartphone</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-valves/bluetooth-and-smartphone-configure-hard-reach-hydraulic-valves">Bluetooth and Smartphone Configure Hard-to-Reach Hydraulic Valves</a></p> </div> <h3>Anatomy of Pump Failure</h3> <p>Axial-piston pumps contain multiple small passageways and sliding surfaces separated by tight tolerances. These can be the source of failures if the pump operates under less than optimal conditions. For example, each piston has an orifice drilled from front to back and through its piston shoe, which is attached to the rear of each piston through a ball joint. Each piston shoe contains grooves to provide hydrostatic balance to offset the load from fluid pressure. The barrel, which contains the pistons, is spring-loaded against the swashplate to keep the piston shoes in contact with the swashplate.</p> <p>Designed-in leakage provides lubrication between and through all of these parts. The amount of leakage depends on the pump&rsquo;s displacement, speed, fluid flow and pressure, and temperature. Internal leakage (volumetric inefficiency) specifications are readily available from the pump&rsquo;s manufacturer. Manufacturers also publish maximum recommended case pressure and fluid temperature.<a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_MRO_Graph1.gif"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_MRO_Graph1.gif" style="width: 366px; height: 228px; float: right; margin-left: 5px; margin-right: 5px;" /></a></p> <p><a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_MRO_Graph2.gif"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_MRO_Graph2.gif" style="width: 366px; height: 239px; float: right; margin-left: 5px; margin-right: 5px;" /></a></p> <p><a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_MRO_Graph3.gif"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_MRO_Graph3.gif" style="width: 366px; height: 237px; float: right; margin-left: 5px; margin-right: 5px;" title="Output from a PumpMD presents historical data of an axial-piston hydraulic pump operating five days over a four-month period." /></a>After placing the pump into service, the piston shoes will wear over time. Wear occurs in proportion to the cleanliness of the oil being pumped&mdash;the dirtier the oil, the more rapid the wear. This wear increases oil flow to the pump case, pump-case temperatures, and case pressure from the backpressure that develops behind the case drain port. The increased pump-case pressure can affect the hydrostatic balance of the pistons, causing leakage through the pump-shaft seal.</p> <p>When one or more internal components of a pump fails, metallic debris becomes scattered throughout the pump cavity and eventually works its way out into the rest of the hydraulic system, putting all other components at risk of premature failure. The result is usually much more than the expense of repairing the pump.</p> <p>Because the debris will likely circulate through the entire hydraulic system, extensive assessments should be performed to ensure other areas have not become vulnerable. As wear degrades a pump&rsquo;s critical tolerances, excess fluid leaks past internal seals and moving parts into the case, robbing the pump of efficiency. Moreover, the associated downtime often results in thousands of dollars in lost production.</p> <h3>Pump Diagnosis Through the Case Drain</h3> <p>When taking all of this into account, it becomes evident that the case drain can be a key indicator of a pump&rsquo;s health by monitoring flow, temperature, and pressure. Furthermore, this all can be done while the pump is running. Case-drain flow exceeding a percentage of total pump output signals the need for maintenance or complete pump rebuild.</p> <p>Many manufacturers offer axial-piston hydraulic pumps with similar power, pressure, and flow ratings. But rarely do any two pumps share the same dimensional and performance characteristics. This makes it difficult to establish baseline performance criteria for any given pump model.</p> <p><a href="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/Pump%20with%20callouts.png"><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/Pump%20with%20callouts.png" style="width: 366px; height: 231px; float: left; margin-left: 5px; margin-right: 5px;" title="This simplified illustration shows major rotating and sliding components of an axial-piston hydraulic pump. Close tolerances make surfaces between multiple moving parts vulnerable to damage from contamination and inadequate lubrication." /></a>However, a new diagnostic device, PumpMD, lets users configure the device to the specific model and size of hydraulic axial-piston pump. A web-based configurator matches the PumpMD to a specific pump. Users enter information such as case-drain port size, maximum case-drain pressure, continuous input shaft speed, and maximum displacement.</p> <p>The Wi-Fi-enabled PumpMD collects this information and continuously monitors the three critical operating parameters, which can be analyzed through a mobile app. Users are able to view current and historical data of one or more hydraulic pumps to assess efficiency and operating trends. Threshold levels can also be established at setup to send an alarm to the user&rsquo;s smartphone when any parameter reaches established level.</p> <p>The PumpMD also provides local monitoring of case drain flow, pressure, and temperature. LEDs glow green when parameters fall within prescribed levels for a specific pump. If any parameter exceeds its preset threshold, any one of the LEDs will glow red.</p> <p><em>Matt Belisle is a design engineer at <a href="http://www.mypumpmd.com" target="_blank">PumpMD</a>, Cincinnati. For more information, call PumpMD at (844) 786-7631, or visit </em><a href="http://www.mypumpmd.com" target="_blank"><em>www.mypumpmd.com</em></a><em>.</em></p> <p><em><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></em></p> </div> http://hydraulicspneumatics.com/maintenance/smart-new-tool-predictive-maintenance#comments Maintenance Hydraulic Pumps & Motors Thu, 10 Nov 2016 15:22:00 +0000 40791 at http://hydraulicspneumatics.com Troubleshooting Challenge: Cylinder Chatter Evades Solution http://hydraulicspneumatics.com/cylinders-actuators/troubleshooting-challenge-cylinder-chatter-evades-solution <div class="node-body article-body"><table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/troubleshooting-challenge-cylinder-chatter-evades-solution-pdf-download">Download this article in .PDF format</a><br /> This file type includes high-resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> <p>A distributor&rsquo;s sales engineer asked us to troubleshoot a problem he was experiencing with a system he designed. We were not told what the machine did, but he gave us the schematic shown below.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/hydraulic-valves/troubleshooting-challenge-regenerative-circuit-not-working-molding-machine">Troubleshooting Challenge: Regenerative Circuit Not Working on a Molding Machine</a></p> <p><a href="http://hydraulicspneumatics.com/controls-instrumentation/troubleshooting-challenge-fix-one-problem-another-crops">Troubleshooting Challenge: Fix One Problem, Another Crops Up</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/troubleshooting-challenge-o-ring-installation-causes-motor-overload">Troubleshooting Challenge: O-ring Installation Causes Motor to Overload</a></p> </div> <p>The problem involved chattering that occurred every time the 5-in. bore cylinder extended to lower the load. He explained that if he adjusted the counterbalance valve to control the cylinder on its downward stroke when the proportional valve was wide open, everything worked fine. However, when he slowed the cylinder down with the proportional valve, it caused pronounced chattering, and he could not make any adjustment that worked.</p> <p>Our work started by checking the model numbers of the components he was using. We determined that the pressure and flow ratings seemed to be sufficient for the application. We then turned our attention to the 30-gpm return flow when the cylinder was retracting. However, this had already been taken into consideration, so that was not the problem.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/TroubChall.gif" style="width: 595px; height: 779px;" /></p> <p>Next, we looked at the proportional valve, which had spool position feedback, even though it was not shown on the schematic. After some discussion, we ruled this out as a cause of the problem. The proportional valve had an asymmetric spool, which required the rod side of the cylinder to be connected to the <em>B</em> port, and it was connected as such.</p> <p>Based on this information, what do you think was causing the chatter when lowering the load at less than full speed, and how would you resolve it?</p> <p><strong>Find the Solution</strong></p> <p>Think you know the answer to this month&rsquo;s problem? Submit your solution by emailing Mindy Timmer at <a href="mailto:timmer@cfc-solar.com">timmer@cfc-solar.com</a>. All correct solutions submitted by November 21, 2016, will be entered into a random drawing for a $50 gift card. The winner will be notified, and his or her name will be printed in a future issue. Only one gift card will be awarded to any participant within a calendar year.</p> <p><strong>Solution to Last Month&rsquo;s Problem: <a href="http://hydraulicspneumatics.com/hydraulic-valves/troubleshooting-challenge-regenerative-circuit-not-working-molding-machine" target="_blank">Regenerative Circuit Not Working</a></strong></p> <p>Regenerative circuits rely on the oil from the rod end of the cylinder to flow to the cap end, which causes the piston rod to extend faster than in a conventional circuit. If left in this condition, though, the annulus area on piston&rsquo;s rod side works against the area on the opposite side. The result is lower applied force from the cylinder.</p> <p>To get maximum tonnage, oil from the rod side needs to be connected to a tank line. The Sun counterbalance valve adjustment is opposite that of most pressure controls, which increase pressure when rotated clockwise and decrease pressure when rotated counter-clockwise. The mechanic needs to adjust the Sun counterbalance valve counter-clockwise to increase the pressure. Unintentionally adjusting the Sun valve to open at a very low pressure prevented the regeneration feature from activating.</p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/cylinders-actuators/troubleshooting-challenge-cylinder-chatter-evades-solution#comments Cylinders & Actuators Hydraulic Valves Tue, 08 Nov 2016 14:07:00 +0000 40761 at http://hydraulicspneumatics.com Hydraulic Troubleshooting Success Principle #3: Check The Easy Things First http://hydraulicspneumatics.com/blog/hydraulic-troubleshooting-success-principle-3-check-easy-things-first <div class="node-body blog-body"><p>In <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=thth"><strong>The Hydraulic Troubleshooting Handbook</strong></a> I explain the 12 principles of effective troubleshooting. Checking and eliminating the easy things first is troubleshooting principle #3. And not sticking to this principle can prolong the agony when troubleshooting, as the following story shows:<br /> <br /> The machine in question had a complex hydraulic system, the heart of which comprised two engines driving ten hydraulic pumps. Six of the pumps were variable displacement pumps and four of these had electronic horsepower control.<br /> <br /> The symptoms of the problem were slow cycle times in combination with lug-down of the engines (loss of engine RPM). The machine had just been fitted with a new set of pumps.<br /> <br /> The diagnosis of the mechanic in charge was that the hydraulic system was tuned above the power curve of the engines i.e. the hydraulics were demanding more power than the engines could produce, resulting in lug-down of the engines and therefore slow cycle times. The other possible explanation of course, was that the engines were not producing their rated horsepower.<br /> <br /> Due to the complexity of the hydraulic system, I knew that it would take around four hours to run a complete system check and tune-up. So in order to eliminate the easy things first, when I arrived on site I inquired about the condition of the engines and their service history. The mechanic in charge not only assured me that the engines were in top shape, he was adamant that this was a &#39;hydraulic&#39; problem.<br /> <br /> Four hours later, after running a complete check of the hydraulic system without finding anything significant, I was not surprised that the problem remained unchanged. After a lengthy discussion, I managed to convince the mechanic in charge to change the fuel filters and air cleaner elements on both engines.<br /> <br /> This fixed the problem. It turned out that a bad batch of fuel had caused premature clogging of the engine fuel filters, which were preventing the engines from developing their rated horsepower.<br /> <br /> The point here being, if the relatively simple task of changing the engine fuel filters had been carried out when the problem was first noticed, an expensive service call and four hours of downtime could have been avoided.<br /> <br /> In other words, failing to check the easy things at the beginning of a troubleshooting effort can be a costly mistake. And to discover six other costly mistakes you want to be sure to avoid with your hydraulic equipment, <a href="http://www.hydraulicsupermarket.com/track?p=handp&amp;w=smr"><strong>get &quot;Six Costly Mistakes Most Hydraulics Users Make... And How You Can Avoid Them!&quot; available for FREE download here</strong></a>.</p> </div> http://hydraulicspneumatics.com/blog/hydraulic-troubleshooting-success-principle-3-check-easy-things-first#comments Hydraulics At Work Tue, 08 Nov 2016 00:48:00 +0000 40751 at http://hydraulicspneumatics.com Nuevas Tecnologías en la Inyección de Plásticos http://hydraulicspneumatics.com/blog/nuevas-tecnolog-en-la-inyecci-n-de-pl-sticos <div class="node-body blog-body"><p class="rtejustify">En el &aacute;rea de inyecci&oacute;n de pl&aacute;sticos, la calidad es definitivamente una prioridad y expectativa de los usuarios y toma disciplina lograrla. Una reducci&oacute;n m&iacute;nima en la precisi&oacute;n podr&iacute;a resultar en un nivel de calidad inferior que resulta en tiempos muertos, aumento en la producci&oacute;n de desechos, reducci&oacute;n de productividad y a la final clientes no satisfechos. Uno de los recursos con los que contamos hoy d&iacute;a para garantizar que se mantenga esa precisi&oacute;n son los sensores inteligentes.</p> <p class="rtejustify"><strong>Impulsando Calidad Inteligente (IQ) en la Operaci&oacute;n</strong></p> <p class="rtejustify"><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Pressure%20sensor_1.jpg" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Pressure%20sensor_1.jpg" style="width: 251px; height: 182px; margin: 10px; float: right;" title="Figura 1: Los sensores SensoNODE Blue de Parker Hannifin pueden ser ubicados en distintos puntos del proceso de inyección para el monitoreo y documentación de data y así permitir un análisis de la presión, temperatura y humedad del sistema. La foto muestra un sensor de presión en campo." /></a>Varios par&aacute;metros deben ser constantemente monitoreados y regulados durante el proceso de inyecci&oacute;n de pl&aacute;sticos para lograr una calidad &oacute;ptima y &eacute;stos pueden ser dif&iacute;ciles de manejar. Con frecuencia se requiere de un monitoreo constante de los man&oacute;metros y otros indicadores, documentando el estado actual y evaluando el delta entre &eacute;ste y las condiciones target. La mayor&iacute;a de los usuarios a&uacute;n lo hacen de manera manual, lo que requiere que personal est&eacute; peri&oacute;dicamente documentando la informaci&oacute;n. Por supuesto, este m&eacute;todo es sumamente ineficiente y propenso al error humano, adem&aacute;s que el equipo antiguo presente en la mayor&iacute;a de las plantas pueden hacer la tarea a&uacute;n m&aacute;s retadora debido a la falta de indicadores en sitio. Independientemente de donde venga la data, un sistema manual de monitoreo generalmente no muestra una falla o problema hasta que ya haya tenido un efecto negativo en el producto en s&iacute; (calidad).</p> <p class="rtejustify">Los sensores inteligentes e inal&aacute;mbricos est&aacute;n cambiando la manera de monitorear los procesos. Pueden ser instalados f&aacute;cilmente para el reemplazo o complemento de los indicadores existentes y permiten la recolecci&oacute;n autom&aacute;tica de data cuando y donde se requiera en la operaci&oacute;n. La informaci&oacute;n est&aacute; disponible en tiempo real y es accesible a trav&eacute;s de aplicaciones y software amigables. Los sensores inteligentes pueden mejorar la capacidad de equipo nuevo y antiguo, extendiendo su valor y vida &uacute;til.</p> <p class="rtejustify"><a href="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Tablet%20data_1.jpg" target="_self"><img alt="" src="http://hydraulicspneumatics.com/site-files/hydraulicspneumatics.com/files/uploads/2016/04/Tablet%20data_1.jpg" style="width: 250px; height: 180px; margin: 10px; float: right;" title="Figura 2: Una vez capturada, la data puede ser transferida de manera inalámbrica al SCOUT Mobile, una interface amigable que permite un acceso instantáneo a la misma a través de teléfonos inteligentes o tabletas." /></a>Este m&eacute;todo de &ldquo;calidad inteligente&rdquo; (IQ por sus siglas en ingl&eacute;s), permite un monitoreo continuo para identificar tendencias que pudiesen indicar un cambio en el desempe&ntilde;o del equipo. Estos cambios suelen ser un indicativo de que se aproxima un problema en el futuro. El reconocerlo es clave para tomar acciones que mantengan el desempe&ntilde;o y calidad del proceso a trav&eacute;s de ajustes o la ejecuci&oacute;n de labores de mantenimiento.</p> <p class="rtejustify"><strong>Tres Maneras de Incrementar su &lsquo;IQ&rsquo;</strong></p> <p class="rtejustify">Cuando una operaci&oacute;n presenta problemas con la calidad del moldeado de partes, uno de los dos problemas siguientes suelen ser la causa: el primero es el <em>tiro corto</em> &ndash; una parte que no est&aacute; completamente formada. El segundo es el <em>flash </em>&ndash; una parte formada pero que o est&aacute; fuera de las especificaciones, o contiene material en exceso significativo.</p> <p class="rtejustify">Estos problemas comunes son generalmente el resultado de muy poca o mucha presi&oacute;n para llevar el material pl&aacute;stico a las cavidades del molde, una temperatura inapropiada del material o l&iacute;neas de enfriamiento, o fluctuaciones en la humedad que impiden que la materia prima mantenga su estado ideal. Adem&aacute;s hay un margen de error considerable. Estos factores pueden impactar el proceso de moldeado desde el momento que el pl&aacute;stico llega al molde, hasta que sale del mismo.</p> <p class="rtejustify">Los sensores inteligentes juegan un papel importante en la regulaci&oacute;n de estas variables. A continuaci&oacute;n les mostramos tres maneras que puede utilizarlos en su operaci&oacute;n desde ya, para introducir lo que llamamos calidad inteligente (IQ):</p> <p class="rtejustify"><strong>Mantenimiento de la Presi&oacute;n</strong> &ndash; una presi&oacute;n hidr&aacute;ulica apropiada es cr&iacute;tica en el proceso de inyecci&oacute;n. Las dos presiones m&aacute;s cr&iacute;ticas son las del tornillo de potencia que empuja el material al molde y la de sujeci&oacute;n (clamp) que mantiene las dos mitades cerradas. Si la presi&oacute;n de sujeci&oacute;n es insuficiente, se puede abrir y hacer que la parte est&eacute; propensa al flash, lo que trae como consecuencia inconsistencias en la corrida.</p> <p class="rtejustify">Los sensores inteligentes pueden ser aplicados a los puntos principales de p&eacute;rdida de presi&oacute;n, detectando hasta los cambios m&aacute;s m&iacute;nimos y enviando alertas en tiempo real al usuario. Esta inteligencia permite que se atienda el problema con tiempo, lo que minimiza el desecho y costos de reparaci&oacute;n.</p> <p class="rtejustify"><strong>Medici&oacute;n de la Temperatura </strong>&ndash; algunas temperaturas deben mantenerse consistentes para garantizar una calidad &oacute;ptima en el proceso de inyecci&oacute;n. La variaci&oacute;n generalmente ocurre en tres puntos cr&iacute;ticos del proceso de producci&oacute;n: en el molde, las l&iacute;neas de agua que enfr&iacute;an las partes del molde antes de ser&nbsp; expulsadas, y en el ambiente en general.</p> <p class="rtejustify">Los sensores pueden ser instalados en los puntos arriba indicados o a lo largo del proceso para as&iacute; permitir que el usuario tenga acceso a temperatura en tiempo real. Aqu&eacute;llas que caen por debajo o suben por encima de los niveles &oacute;ptimos pueden ser ajustadas antes de que impacten la calidad del producto.</p> <p class="rtejustify"><strong>Evaluaci&oacute;n de la Humedad </strong>&ndash; una humedad muy alta puede afectar a la materia prima, transformando as&iacute; sus propiedades y evitando que se moldee como debe. Este impacto puede ocurrir en los dep&oacute;sitos, l&iacute;neas de proceso, equipo de secado y m&aacute;quinas de moldeado.</p> <p class="rtejustify">La tecnolog&iacute;a de sensores inteligentes es ideal para el monitoreo en l&iacute;nea y de ambiente. Su habilidad de diagnosticar problemas y darle seguimiento a las condiciones con el tiempo le permite el usuario evaluar tendencias y tomar las acciones necesarias para solucionar el problema.</p> <p class="rtejustify"><strong>M&aacute;s all&aacute; de la Calidad</strong></p> <p class="rtejustify">A pesar de que el impacto en la calidad es argumento suficiente, no es el &uacute;nico beneficio que ofrecen los sensores inteligentes en una operaci&oacute;n de inyecci&oacute;n de pl&aacute;stico. Al revelar problemas antes de que escalen, el uso de los mismos permite reducir costos de mantenimiento. Le dan al usuario acceso a data a la cual no tendr&iacute;an de otra manera, especialmente en lugares con dif&iacute;cil acceso o peligrosos. Pueden adem&aacute;s mejorar la eficiencia e incrementar la productividad al eliminar procesos lentos y costosos de monitoreo manual.</p> <p class="rtejustify">Las ventajas del uso de sensores inteligentes se multiplicar&aacute;n con el tiempo. Desde ya juegan un papel cr&iacute;tico al crear una ruta de mantenimiento predictivo. Nuevas aplicaciones se han creado para permitir aun una mayor inteligencia &ndash; diagn&oacute;sticos m&aacute;s sofisticados, integraci&oacute;n con otros sistemas internos, monitoreo de tendencias, monitoreo en vivo y mucho m&aacute;s.</p> <p class="rtejustify">No tiene que dejar que la calidad en su proceso de moldeado sea un accidente. Aproveche las ventajas que le traen los sensores inteligentes para incrementar el &lsquo;IQ&rsquo; de su planta.</p> <p><em>Art</em><em>&iacute;culo originalmente escrito por Dan Davis, Gerente de Producto de SensoControl y herramientas de diagn&oacute;stico de Parker Hannifin Corp.</em></p> <p><em>Para&nbsp; mayor informaci&oacute;n sobre sensores inteligentes en general, le invitamos a contactarnos al +1(855)462-7633, <a href="mailto:info@eemtechnologies.com">info@eemtechnologies.com</a>, <a href="http://www.eemtechnologies.com">www.eemtechnologies.com</a>.&nbsp;</em></p> </div> http://hydraulicspneumatics.com/blog/nuevas-tecnolog-en-la-inyecci-n-de-pl-sticos#comments Controls & Instrumentation Plastics & Injection Molding H&amp;P en tu idioma! Mon, 07 Nov 2016 13:00:00 +0000 40741 at http://hydraulicspneumatics.com Pokémon GO and the Future of Fluid Power http://hydraulicspneumatics.com/controls-instrumentation/pok-mon-go-and-future-fluid-power <div class="field-byline"> David Strohsack, Eaton Corp. </div> <div class="node-body article-body"><table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/pok-mon-go-and-future-fluid-power-pdf-download">Download this article in .PDF format</a><br /> This file type includes high-resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/Strohsack-2.jpg" style="width: 220px; height: 259px; float: left;" title="David Strohsack, Director of Product Management, Eaton Corp." />This year will likely be remembered as the summer of Pok&eacute;mon GO, the cultural phenomenon that took our country by storm. If you didn&rsquo;t get a chance to play, you probably noticed game users walking around with their eyes glued to their smartphones while also scanning their surroundings. Phones are the tools that help them navigate in their quest to catch Pok&eacute;mon characters hiding in the midst of our own cities and neighborhoods. When a character appears on screen, players click on it and the Pok&eacute;mon is there, digitally superimposed as if among us in the real world.</p> <p>With Pok&eacute;mon GO, <em>augmented reality</em> was finally at our fingertips and accessible to millions of people. But Pok&eacute;mon GO is just one example of augmented reality&mdash;a live view of a physical, real-world environment whose elements are <em>augmented</em> (or supplemented) by computer-generated sensory input such as sound, video, graphics, or GPS data.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/other-components/forklift-scale-leverages-hydraulic-pressure-sensor-weigh-loads">Forklift Scale Leverages Hydraulic-Pressure Sensor to Weigh Loads</a></p> <p><a href="http://hydraulicspneumatics.com/controls-instrumentation/new-iq-injection-molding">The New IQ in Injection Molding</a></p> <p><a href="http://hydraulicspneumatics.com/other-technologies/use-your-iphone-analyze-vibration">Use Your iPhone to Analyze Vibration</a></p> </div> <p>Although the glow of Pok&eacute;mon GO faded by Labor Day, the app has sparked conversations about the potential benefits of augmented-reality technology across many industries. Where Pok&eacute;mon GO was a fun summer fad, in the world of mobile and industrial equipment, can augmented reality be used to provide easier access to meaningful information? Absolutely. Can the same technology that captivated people of all ages over the summer help end users from construction to steel production visualize the health of their machines? Sure thing.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/10/pullquote260px.gif" style="width: 260px; height: 300px; float: left; margin-top: 6px; margin-bottom: 6px;" />To put this notion into perspective, consider a factory where lines of pumps and valves keep equipment operating and production moving along. One of those valves is nearing failure, but which one? Today, you would have to check every valve manually or go to a computer, gather data from each valve, and compare the numbers to figure out which one is struggling.</p> <p>Now consider the benefits an augmented-reality app might have when it comes to efficiency for this factory. Instead of manually checking the valve or sorting through data, is there a way to view the machinery through an app&mdash;say, by pointing your phone&rsquo;s camera at it&mdash;that provides actionable information on screen? Not yet, but it may be closer than you think. Vast potential benefits for end-users certainly exist, as illustrated by this simple example.</p> <p>Fluid-power technology continues to be a proven and trusted workhorse. Incremental improvements will continue to occur, but profound changes in the fundamentals of fluid power are unlikely. We are embarking on an era of opportunity to take this proven, robust technology and build on it with new and innovative ideas, such as augmented reality, to create a paradigm shift in our industry.</p> <p>Pok&eacute;mon GO made augmented reality a reality&mdash;commonplace, even&mdash;and has sparked the creativity of innovative thinkers in our industry and across the many industries <a href="http://eaton.com" target="_blank">Eaton</a> serves. Tremendous opportunity exists for this creativity to transform the world using new technologies, like augmented reality, to provide information and value&mdash;and maybe even have some fun.</p> <p><em>David Strohsack is director of product management, Power and Motion Control Business, at <a href="http://www.eaton.com/hydraulics" target="_blank">Eaton Corp</a>.<br /> Got comments or opinions about augmented reality in fluid power? Join the discussion on <a href="https://twitter.com/HPpenton" target="_blank">Twitter</a> at&nbsp; <a href="https://twitter.com/search?f=tweets&amp;vertical=news&amp;q=%23AugmentedReality&amp;src=tyah" target="_blank">#augmentedreality</a> to participate.</em></p> <p><em><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></em></p> </div> http://hydraulicspneumatics.com/controls-instrumentation/pok-mon-go-and-future-fluid-power#comments Other Technologies Controls & Instrumentation Fri, 04 Nov 2016 13:02:00 +0000 40721 at http://hydraulicspneumatics.com Understanding the Uses of Motion-Control Valves http://hydraulicspneumatics.com/hydraulic-valves/understanding-uses-motion-control-valves <div class="field-deck"> Sponsored by Eaton </div> <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/09/Eaton_logo196x65.gif" style="width: 196px; height: 65px; float: right;" />When it comes to providing safety for my people and my equipment, which type of motion-control valve do I need to consider? Holding someone in the air is one thing, but how can I provide a smooth and accurate motion while raising and lowering the load? My application is very dynamic, and I often have large loads that are cantilevered out. They can get pretty bouncy and out of control, forcing us to slow down the machine&rsquo;s operations for stabilization. Could you explain how hose rupture valves work?&nbsp;</p> <p>Download <em><strong>FAQs on Understanding the Uses of Motion-Control Valves</strong></em> sponsored by <strong>Eaton</strong> to get the answers.</p> <script type="text/javascript"> document.write('\ <iframe style="height: 1400px; width: 100%; border:0;” frameBorder="0" scrolling="no"\ src="http://pages.hydraulicspneumatics.com/HP_Digital_Eaton_MotionControlValves_FAQ_JR_102716?partnerref=' + getParameterByName("partnerref") + "&elq=" + getParameterByName("elq2") + "&code=" + getParameterByName("code") + "&PK=" + getParameterByName("PK") + "&PR=" + getParameterByName("PR") + '"></iframe>'); function getParameterByName(name) { var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search); if (match == null) return ""; return match && decodeURIComponent(match[1].replace(/\+/g, ' ')); } </script></div> http://hydraulicspneumatics.com/hydraulic-valves/understanding-uses-motion-control-valves#comments Design FAQs Hydraulic Valves Pneumatic Valves Thu, 03 Nov 2016 21:19:00 +0000 40631 at http://hydraulicspneumatics.com Hydraulic-Electric Analogies: Conditioners http://hydraulicspneumatics.com/hydraulic-valves/hydraulic-electric-analogies-conditioners <div class="field-deck"> Last month we introduced the conditioner, which is integrated into virtually every hydraulic and electrical system. This installment concludes the discussion on these important components. </div> <div class="node-body article-body"><table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/hydraulic-electric-analogies-conditioners-pdf-download">Download this article in .PDF format</a><br /> This file type includes high-resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> <p>Conditioners are widely used in both electrical and hydraulic circuits. In electronics, they&rsquo;re referred to as <em>signal conditioners</em>; in hydraulics, they&rsquo;re called <em>fluid conditioners</em>. Fluid conditioners consist of filters, heat exchangers, and, sometimes, fluid heaters. These were described last month and compared to their electrical counterparts: electronic filters and heat sinks. No other fluid conditioners exist, but it&rsquo;s a much different story for electronic signal conditioners.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/hydraulic-filters/hydraulic-electric-analogies-fluid-and-electronic-filters">Hydraulic-Electric Analogies: Fluid and Electronic Filters</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-electric-analogies-power-conditioning">Hydraulic-Electric Analogies: Power Conditioning</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-electric-analogies-stepper-motors">Hydraulic-Electric Analogies: Stepper Motors</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-electric-analogies-internal-gear-pumps">Hydraulic-Electric Analogies: Internal Gear Pumps</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-electric-analogies-part-2-adding-variable-positive-displacement">Hydraulic-Electric Analogies: Part 2&mdash;Adding a Variable to Positive Displacement</a></p> </div> <p>The term signal conditioner, ingrained in electrical jargon, has no standardized definition. Countless devices can be, and are, called signal conditioners. Some more common devices and synonyms include amplifier, buffer, impedance matcher, clipper, clamper, rectifier, isolator, demodulator, modulator, pulse-width modulation, and on and on. Needless to say, not all will be covered in this introductory discussion on analogies. Though no analogous hydraulic device exists for the many electronic &ldquo;signal conditioners,&rdquo; we&rsquo;ll discuss those that are in play today.</p> <p><strong>The Two Most Important Electronic Functions</strong></p> <p>In this context, electronic refers specifically to the myriad solid-state devices, such as radio and TV transmitters and computers. They use silicon and germanium elements that perform the functions. <em>Rectification</em> (unidirectional current) and <em>amplification</em> are the two basic functions from which all others emanate. Complete circuits are constructed by adding all the necessary external resistors, capacitors, inductors, switches, etc.</p> <p><strong>Diodes and rectifiers:</strong> Diodes are silicon-germanium devices (solid-state junctions) that pass current in one direction, but block it in the other. Thomas Edison discovered the diode effects in his quest for an electric lamp. Later, the phenomenon was used to create vacuum-tube diodes that provided rectification. They prevailed in electronic circuits until the invention of the transistor and the subsequent explosion in solid-state electronic technology.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_MotCtrl_F3.gif" style="width: 350px; height: 234px; float: left;" title="3. Diodes conduct in the direction of the schematic arrow when using conventional current. The anode must be at a higher voltage than the cathode in order to conduct." />Edison noted that with a filament glowing in an evacuated bulb, a third conductor placed inside could be made to conduct current with applied voltage of one polarity, but blocked current in the other direction. It was a solution looking for a problem, which did not come until the invention of radio in the early 20th Century. The Edison diode required the high temperature (hundreds of degrees) of the bulb filament in order to conduct current.</p> <p>The process is called <em>themionic emission</em>, wherein the electrons in the heated element are said to &ldquo;boil off.&rdquo; Therefore, they can be attracted to any additional conducting element that is positive with respect to the heated element. The vacuum-tube diode conducts when the heated element&mdash;the <em>cathode</em>&mdash;is negative, and the other unheated element&mdash;called the <em>anode</em>&mdash;is not.</p> <p>The anode must be positive relative to the cathode for conduction to occur. In contrast, solid-state diodes conduct current in both directions at room temperature, making them infinitely more useful than hot vacuum tubes. A <em>diode junction</em> is nothing more than the intimate contact of two pieces of silicon, each with a different &ldquo;doping agent&rdquo; (deliberately added impurity) in each piece. The result is a diode. Diodes can be so small that it is possible to integrate millions of them onto one solid-state chip no larger than a fingernail.</p> <p>The schematic symbol for a diode (with descriptions provided to explain operation) is shown in <em>Fig. 3</em>. If you recall, conventional current assumes that a fictitious positively charged particle moves around a circuit. Electron flow is the opposite, and electrons move in the opposite direction to conventional current.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_MotCtrl_F4.gif" style="width: 595px; height: 408px;" title="4. Shown are volt-ampere characteristics of a typical diode for positive voltage difference. Diode bias voltage is inherent in the semiconductor junction and must be overcome before free flow can exist." /></p> <p>The apex of the diode arrowhead is the direction of conventional <em>current</em> free flow. It requires that the anode voltage be higher than the cathode voltage. Another way of saying it is that the voltage difference across the diode must be positive relative to the anode. The diode is said to be &ldquo;forward biased&rdquo; and will be in free flow if it exceeds the forward-bias voltage inherent in the silicon junction.</p> <p><em>Figure 4</em> illustrates the typical volt-ampere characteristics of a diode with a conventional-current designation. It is normal in both silicon and germanium junctions that a small forward voltage must be applied to the anode in order to overcome the junction threshold. The amount of voltage depends on the semiconductor material. It is 0.5 to 0.7 V for silicon diodes, but between 0.1 and 0.3 V in a germanium diode.</p> <p><strong>Check Valves</strong></p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_MotCtrl_F5.gif" style="width: 595px; height: 312px;" title="5. An inline check valve uses a hollow poppet to conduct free flow. With no pressure on the inlet side, a very weak bias spring forces the poppet into a sealing seat with a positive metal-to-metal contact. It will open only when the pressure on the inlet side exceeds that on the outlet side, in addition to overcoming the bias spring." /></p> <p>The hydraulic check valve is analogous to the diode. The check valve lets fluid flow in one direction, but prevents flow in the opposite direction. The cutaway drawing in <em>Fig. 5</em> shows the principles at work in a high-pressure hydraulic check valve.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_MotCtrl_F6.gif" style="width: 350px; height: 244px; float: right;" title="6. The schematic symbol for a check valve is an implied ball that fits into a seat." />At very low pressures, a very light spring biases (pushes) the poppet closed to create a positive, metal-to-metal seal. When the pressure on the left side of the sketch acting on the end area of the poppet exceeds the spring force (bias), the poppet moves to the right (off the seat) to let fluid flow from left to right. The poppet shown has been hollowed out to allow for drilled passages from the poppet bevel into the interior chamber to carry flow in the check valve&rsquo;s &ldquo;forward direction.&rdquo;</p> <p>If pressure on the outlet side of the sketch is elevated, the pressure acts on the rear area of the poppet, forcing it more firmly into the metal-to-metal seat and thus assuring that there will be no flow from right to left in the drawing. <em>Figure 6</em> shows the schematic symbol for a check valve, and mimics the actual function of the valve. It consists of a circle (shown as a ball in this case) that lifts off its seat and allows flow in the free-flow direction when the inlet is at a higher pressure than the outlet. Orientation is the same in both Figs. 5 and 6. Figure 5 shows the bias spring, which may or may not be shown in other schematics.</p> <p><em>Figure 7</em> contains the pressure-flow characteristics of a typical check valve and shows the effects of the bias spring. The differential pressure must exceed the effects of the bias spring before free flow can occur in the forward direction. Once free flow starts, the weak bias spring allows the poppet to move to its full open position. Once this occurs, the check valve performs as a fixed-opening orifice.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_MotCtrl_F7.gif" style="width: 595px; height: 425px;" title="7. The check valve will be in its free-flow condition any time pressure exceeds that required to overcome the spring bias." /></p> <p>Not all check valves require the bias spring. In cases where gravity helps seat the poppet in its closed position, the spring can be eliminated and free flow will occur whenever pressure exceeds zero.</p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/hydraulic-valves/hydraulic-electric-analogies-conditioners#comments Hydraulic Filters Hydraulic Valves Other Components Thu, 03 Nov 2016 13:52:00 +0000 40701 at http://hydraulicspneumatics.com Pneumatic Cannon Flies Pumpkins At Record Distances http://hydraulicspneumatics.com/news/pneumatic-cannon-flies-pumpkins-record-distances <div class="field-deck"> At the World Champion Pumpkin Chucking Contest, pumpkins fly thousands of feet. Weather permitting, the Big Ten Inch hopes to break its 1-mile record this November. </div> <div class="node-body article-body"><p>The&nbsp;<a href="http://big10inch.org">Big 10 Inch&nbsp;</a>(BTI)&nbsp;pneumatic cannon holds the Guinness Book of World Record for launching pumpkins over a mile at speeds that approach the local speed of sound. It is set to compete again at the World Champion Pumpkin Chucking (that&rsquo;s pronounced &ldquo;Punkin Chunkin&rdquo;) competition this year. The&nbsp;BTI set the record in Moab, Utah in 2010 by launching a 9-lb, 12-oz Las Estrellas pumpkin over a distance of 5545.42 ft.&nbsp;</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/eiffel-tower-gets-lift-hydraulics">Eiffel Tower Gets Lift from Hydraulics</a></p> <p><a href="http://hydraulicspneumatics.com/entertainment/hydraulics-set-stage-biggest-water-show-earth">Hydraulics Set the Stage at the Biggest Water Show on Earth</a></p> <p><a href="http://hydraulicspneumatics.com/cylinders-actuators/bionic-kangaroo-brought-life-pneumatics">Bionic Kangaroo Brought to Life by Pneumatics</a></p> </div> <p><iframe allowfullscreen="" class="giphy-embed" frameborder="0" height="270" src="//giphy.com/embed/BN6AyOs5MbabC" width="480"></iframe></p> <p><a href="http://giphy.com/gifs/BN6AyOs5MbabC">via GIPHY</a></p> <p>The&nbsp;<a href="https://www.punkinchunkin.com/" target="_blank">World Champion Pumpkin Chucking event</a>&nbsp;this year will take place in&nbsp;Bridgeville, Delaware on November 4, 5, and 6. There, world class competitors including Big Red and Death Star will make attempts to launch their pumpkins as far as they can. The event expects to see more than 2-dozen air cannons.</p> <p>While in previous years, the BTI team has tried&nbsp;growing pumpkins in a round mold, this year, they will choose six of the roundest, densest gourds from a sample of over 1000 naturally grown pumpkins&nbsp;from local farmer in Delaware. The&nbsp;perfect pumpkin will be as close to the 10-lb. limit as possible, and will be small so as to minimize surface area for&nbsp;lower drag.&nbsp;</p> <p><iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/MtKyCrfmInA" width="560"></iframe></p> <p>The pumpkins exit the 100-ft. cannon at speed exceeding 1000 feet per second, or 680 miles per hour. It uses a two-stage&nbsp;3000-lb.&nbsp;ASME-code&nbsp;pressure tank run by a 25 horsepower motor&nbsp;that&nbsp;compresses air&nbsp;to 300&nbsp;pounds per square inch. When decompressed, this runs a refrigeration cycle that builds ice around the exit of the&nbsp;compressor.&nbsp;</p> <p>At such high speeds, the pumpkin are subjected to about&nbsp;500 G. Team leader, Ralph&nbsp;Eschborn,puts this into perspective by saying&nbsp;pilots black out at about 6 or 7 G, while 50 G can kill someone&nbsp;in a car crash, and&nbsp;501 G makes pumpkin pie-- which means that the pumpkin explodes upon exiting the cannon.&nbsp;With a 10-lb. pumpkin approaching speeds close to the speed of sound, the momentum transfer to the system is enormous. &nbsp;</p> <p>When asked if the team foresees breaking another record this year,&nbsp;Eschborn&nbsp;says that the outcome depends mostly&nbsp;on the weather and air quality. The record in Moab was partially due to the thinner air at high elevation. Still, the specs are impressive and powered by compressed air.&nbsp;People interested in seeing the World Champion Pumpkin Chucking event&nbsp;can purchase tickets&nbsp;<a href="https://www.eventsprout.com/register/world_championship_punkin_chunkin_2016__spectator_tickets" target="_blank">here</a>.</p> </div> http://hydraulicspneumatics.com/news/pneumatic-cannon-flies-pumpkins-record-distances#comments Air Compressors Entertainment News Wed, 02 Nov 2016 19:55:00 +0000 40661 at http://hydraulicspneumatics.com <p>The Big Ten Inch&nbsp;broke records, launching a pumpkin over a mile in&nbsp;<span style="font-size: 12.8px;">Moab, Utah, 2010.&nbsp;</span></p> Courtesy of Big10Inch.org Flexible Seal Seat Ensures Bubble-Tight Performance http://hydraulicspneumatics.com/seals/flexible-seal-seat-ensures-bubble-tight-performance <div class="field-byline"> David Broschka, Kepner Products </div> <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/inline_relief_valves2_web.jpg" style="width: 426px; height: 100px;" /></p> <p><a href="http://www.kepner.com" target="_blank">Kepner&rsquo;s</a> Flexible Seal Seat design prevents fluid leakage with a seat design that combines metal-to-metal and resilient O-ring seal contact. The seal closes around scratches, dents, and other irregularities to prevent any leakage past the seat. And because the O-ring is securely retained at the seat, rather than on the poppet, it is protected from the destructive abrading and blasting effect of fluid flow. The design not only extends seal life, but also prevents the seat &ldquo;wire drawing&rdquo; commonly found in conventional valves.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/hydraulic-valves/so-you-think-you-know-shuttle-valves">So, You Think You Know Shuttle Valves?</a></p> <p><a href="http://hydraulicspneumatics.com/blog/how-select-hydraulic-connectors-leak-free-reliability">How To Select Hydraulic Connectors For Leak-Free Reliability</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-valves/excessive-blowdown-leads-relief-valve-slowdowns">Excessive Blowdown Leads To Relief-Valve Slowdowns</a></p> </div> <p>When closed with no fluid flow, the design&rsquo;s relaxed O-ring seal and light seal-to-poppet contact guarantees low-pressure sealing and prevents valve chatter. When open with full flow, the seal flexes to close off all external leakage, and the steel enclosure shields the O-ring and keeps it from moving. When closed with reverse pressure, the seal continues to prevent external leakage and flexes around poppet. The higher the reverse pressure, the tighter the seal.</p> <p>A wide choice of O-ring seal elastomers is offered for system compatibility. The Flexible Seal Seat design is available not only in Kepner&rsquo;s shuttle valves, but also in check, relief, and pilot-operated check valves <em>(for more on shuttle valves, see &quot;<a href="http://hydraulicspneumatics.com/hydraulic-valves/so-you-think-you-know-shuttle-valves" target="_blank">So, You Think You Know Shuttle Valves</a>&quot;)</em>. The Flexible Seal Seat&rsquo;s has seen widespread use for more than 60 years in millions of hydraulic and other fluid-control applications, providing leak-tight sealing (even at low pressures) and no chatter.</p> <p><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></p> </div> http://hydraulicspneumatics.com/seals/flexible-seal-seat-ensures-bubble-tight-performance#comments Seals Wed, 02 Nov 2016 14:03:00 +0000 40681 at http://hydraulicspneumatics.com So, You Think You Know Shuttle Valves? http://hydraulicspneumatics.com/hydraulic-valves/so-you-think-you-know-shuttle-valves <div class="field-byline"> David Broschka, Kepner Products </div> <div class="field-deck"> Though regarded as one of the simplest components, shuttle valves are probably much more versatile than you ever imagined. </div> <div class="node-body article-body"><table border="0" cellpadding="0" cellspacing="0" width="570"> <tbody> <tr> <td width="41"><img src="http://insidepenton.com/electronic_design/adobe-pdf-logo-tiny.png" /></td> <td style="padding-left: 0px;" width="459"><a href="/datasheet/so-you-think-you-know-shuttle-valves-pdf-download">Download this article in .PDF format</a><br /> This file type includes high-resolution graphics and schematics when applicable.</td> </tr> </tbody> </table> <p>In the world of fluid power, one of the least-complex components is the shuttle valve. &nbsp;Operating on that premise, you may think you know all there is to know about them. Shuttle valves perform the simple function of allowing flow from an outlet port from either of two inlet ports while blocking flow to the other. A shuttle valve may look like two check valves mounted back-to-back, but that isn&rsquo;t the case. While opposed check valves allow flow from one of two ports to a third, they block flow from the outlet to both inlets.</p> <div class="related-content"> <div class="related-label">Related</div> <p><a href="http://hydraulicspneumatics.com/hydraulic-valves/bluetooth-comes-cartridge-valves">Bluetooth Comes to Cartridge Valves</a></p> <p><a href="http://hydraulicspneumatics.com/hydraulic-valves/cartridge-valves-add-flexibility-excavators">Cartridge Valves Add Flexibility to Excavators</a></p> <p><a href="http://hydraulicspneumatics.com/seals/flexible-seal-seat-ensures-bubble-tight-performance">Flexible Seal Seat Ensures Bubble-Tight Performance</a></p> </div> <p>Non-biased shuttle valves have two inlet ports and a single outlet port with flow direction controlled by fluid pressure. The inlet port with the higher pressure passes flow to the outlet port, while flow is blocked from the other inlet port. A biased shuttle valve incorporates a spring that acts against inlet pressure at one of the ports. Fluid from that port cannot flow unless its pressure exceeds pressure at the opposing inlet port plus the pressure to overcome the spring force.</p> <p>Shuttle valves also allow reverse flow&mdash;fluid from the outlet port flows back through either of the inlet ports. This important characteristic distinguishes shuttle valves from check valves placed back-to-back. In dead-ended circuits, such as pilot and brake circuits, system pressure must be able to relieve when the input pressure drops, which occurs with the shuttle valve.</p> <p><strong>Shuttle-Valve Function</strong></p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_CartValves_OR_circuit.gif" style="width: 350px; height: 391px;" /></p> <p>The shuttle valve is essentially an OR logic element <em>(see above)</em>. One input or the other becomes the output, usually a pilot signal that controls a normally open or normally closed valve. The circuit shown is an OR circuit, with the OR elements (shuttle valves) connected to a normally closed valve. Substituting a normally open valve, the circuit becomes a NOR circuit, where any input stops the output.</p> <p>Shuttle valves are naturals for switching alternate, standby, emergency, pressure, or power systems, and are essential for dual-input pilot control. A free-ball shuttle valve with leak-tight sealing on the closed port, short ball travel, and low-pressure shifting (such as <a href="http://www.kepner.com" target="_blank">Kepner&rsquo;s</a> 2450 series) provides reliable performance at pressures to 3,000 psi<em> (see also &quot;<a href="http://hydraulicspneumatics.com/seals/flexible-seal-seat-ensures-bubble-tight-performance" target="_blank">Flexible Seal Seat Ensures Bubble-Tight Performance</a>&quot;)</em>.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_CartValves_ClampBend.gif" style="width: 595px; height: 283px;" /></p> <p><strong>Clamping and bending&mdash;</strong>Valve <em>A</em> above applies air to the up end of the clamp cylinder through shuttle valve <em>B</em>. The operator then actuates valve <em>C</em> to extend the bend cylinder and reset valve <em>A</em>. Shuttle valve <em>B</em> maintains pressure in the clamp cylinder. When the operator releases valve <em>C</em>, low-pressure air from reducing valve <em>D</em> retracts the clamp cylinder. The pilot line of valve <em>A</em> is vented, and the system is ready for the next operation.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_CartValves_WinchBrake.gif" style="width: 595px; height: 264px;" /></p> <p><strong>Winch brake&mdash;</strong>The shuttle valve provides brake control in this hydraulic winch application shown above. When the hydraulic motor is energized in either direction, the shuttle valve directs fluid to open the brake shoes. When the control valve is centered, the brake cylinder vents through the shuttle valve, allowing the brake shoes to close.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_CartValves_AltPowerCircuit.gif" style="width: 350px; height: 196px;" /></p> <p><strong>Alternate power inputs&mdash;</strong>Above, the shuttle valve allows instant change of control from one station (or master cylinder) to the other. Many vehicles and systems are equipped with alternate control stations or two driving stations with separate hydraulic inputs. The shuttle valve directs these to the required output.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_CartValves_FluidMotCrossover.gif" style="width: 595px; height: 291px;" /></p> <p><strong>Fluid motor crossover&mdash;</strong>The shuttle valve in the brake and crossover circuit shown above separates the high- and low-pressure circuit branches and directs fluid to the relief valve. Here, the shuttle valve replaces back-to back check valves.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_CartValves_AirPilotCtrl.gif" style="width: 595px; height: 425px;" /></p> <p><strong>Air pilot control&mdash;</strong>Converting from air to oil can lock a cylinder in place. Shifting the 4-way valve to either extreme position applies pilot air through the shuttle valve to hold the two air-operated valves open and apply oil under air pressure to the corresponding end of the cylinder (see above). Positioning the directional valve to neutral lets pilot pressure exhaust. The 2-way valve then closes and traps oil on both sides of the cylinder to lock it in position.</p> <p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2016/11/02/1116_CartValves_StbyEmergency.gif" style="width: 595px; height: 221px;" /></p> <p><strong>Standby and emergency systems&mdash;</strong>Pressure control of multiple compressors requiring standby or purge gas capability can be accomplished simply by using a shuttle valve. Examples include instrumentation, pressurized cables, or any system requiring continuous pneumatic input. If the compressor fails, the standby bank (regulated to slightly lower than compressor supply) will shift the shuttle valve and take over the function. The shuttle valve will close the compressor inlet port to prevent losing system pressure. When compressor pressure is reestablished, the shuttle valve shifts back and seals off the standby system until needed again.</p> <p><em>David Broschka is assistant general manager at Kepner Products Co., Villa Park, Ill. For more information on shuttle valves and Kepner&rsquo;s other line-mounted and cartridge valves incorporating Flexible Seal Seat technology, call (630) 279-1550, e-mail <a href="mailto:kepner@kepner.com">kepner@kepner.com</a>, or visit <a href="http://www.kepner.com" target="_blank">www.kepner.com</a>.</em></p> <p><em><a href="http://sourceesb.com" target="_blank"><img alt="" src="/site-files/globalpurchasing.com/files/uploads/2016/07/15/SourceESB_Lookin_For_Parts_Banner.jpg" style="width: 600px; height: 46px;" /></a></em></p> </div> http://hydraulicspneumatics.com/hydraulic-valves/so-you-think-you-know-shuttle-valves#comments Hydraulic Valves Wed, 02 Nov 2016 13:30:00 +0000 40671 at http://hydraulicspneumatics.com