Hydraulics & Pneumatics - Hydraulics & Pneumatics is the leading international technical resource for fluid power http://hydraulicspneumatics.com/rss.xml en FSA Appoints Three New Board Positions http://hydraulicspneumatics.com/news/fsa-appoints-three-new-board-positions <div class="field-byline"> Sarah Mangiola </div> <div class="node-body article-body">Michael Shorts, Phil Mahoney, and Robert S. Coffee have been appointed to FSA's Board of Directors. </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/news/fsa-appoints-three-new-board-positions" target="_blank">read more</a></p> http://hydraulicspneumatics.com/news/fsa-appoints-three-new-board-positions#comments Seals News Tue, 21 Oct 2014 15:43:00 +0000 29471 at http://hydraulicspneumatics.com HAWE Hydraulics North America welcomes new CEO http://hydraulicspneumatics.com/news/hawe-hydraulics-north-america-welcomes-new-ceo <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Chad%20Tuttle%2C%20CEO%20NA.jpg" style="width: 152px; height: 184px; float: right; margin-left: 4px; margin-right: 4px;" title="Tuttle" /><a href="http://www.haweusa.com/" target="_blank">HAWE Hydraulics</a>, Charlotte, N.C., announced that Chadwick Tuttle has been selected as the new General Manager and CEO for the North American operations of <a href="http://www.hawe.de" target="_blank">HAWE Hydraulik SE</a>, Munich.</p></div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/news/hawe-hydraulics-north-america-welcomes-new-ceo" target="_blank">read more</a></p> http://hydraulicspneumatics.com/news/hawe-hydraulics-north-america-welcomes-new-ceo#comments News Mon, 20 Oct 2014 13:15:00 +0000 29451 at http://hydraulicspneumatics.com Who DO you trust with YOUR hydraulic machine? http://hydraulicspneumatics.com/blog/who-do-you-trust-your-hydraulic-machine <div class="node-body blog-body">"I'm an owner/operator of a small concrete pumping business. We have 12 years experience operating concrete pumps but limited knowledge of hydraulics. I have no faith in the manufacturer's dealer. They don't give away any information and I'm not happy with the work they do. Plus, they're 6 hours away..."</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hydraulics-work">Hydraulics At Work</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/who-do-you-trust-your-hydraulic-machine" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/who-do-you-trust-your-hydraulic-machine#comments Hydraulics At Work Mon, 20 Oct 2014 04:18:00 +0000 29441 at http://hydraulicspneumatics.com October 2014 http://hydraulicspneumatics.com/hydraulics-pneumatics/2014-10-20 <div class="node-body magazine_issue-body">September 2014 Hydraulics & Pneumatics</div> <fieldset class="fieldgroup group-mag-teasers"> <div class="field-mag-teaser"> <a href="/controls-instrumentation/options-add-functionality-motion-controllers">Options Add Functionality to Motion Controllers</a> <a href="/hydraulic-pumps-motors/new-hpu-gives-wwii-sub-new-life">New HPU Gives WWII Sub New Life</a> <a href="/hydraulic-pumps-motors/electrically-powered-gear-pump-slashes-fuel-consumption">Electrically Powered Gear Pump Slashes Fuel Consumption</a> </div> </fieldset> <fieldset class="fieldgroup group-publication-info"><legend>Publication Info</legend> </fieldset> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/hydraulics-pneumatics/2014-10-20" target="_blank">read more</a></p> Mon, 20 Oct 2014 04:00:00 +0000 29461 at http://hydraulicspneumatics.com Marmon/Keystone Celebrates Employees’ Focus on Quality Improvement http://hydraulicspneumatics.com/news/marmonkeystone-celebrates-employees-focus-quality-improvement <div class="field-byline"> Alexis Coffey </div> <div class="node-body article-body"><p>Marmon/Keystone recently held its 23<sup>rd</sup> Annual Quality Renewal Celebration to honor employees&rsquo; work in the Quality Improvement Process. The celebration spanned across all 40 Marmon Keystone locations where each branch spent half the day participating in recreation, team building, and prize giveaways.</p> <p>Upon hire employees receive training on how the Quality Improvement Process works and then work on one of the Quality Teams where they identify and complete projects that make Marmon/Keystone processes safer, more efficient and cost effective.</p></div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/news/marmonkeystone-celebrates-employees-focus-quality-improvement" target="_blank">read more</a></p> http://hydraulicspneumatics.com/news/marmonkeystone-celebrates-employees-focus-quality-improvement#comments News Wed, 15 Oct 2014 18:01:00 +0000 29431 at http://hydraulicspneumatics.com Is YOUR Hydraulic Machine A 'Leaker'? http://hydraulicspneumatics.com/blog/your-hydraulic-machine-leaker <div class="node-body blog-body">According to an article by hose manufacturer Gates, it is estimated that 370 million liters of oil leak from hydraulic equipment each year. This is a staggering statistic. And even more so when you consider the same article states that as little as one liter of oil can pollute up to one million liters of water. With this in mind, here's a 'what if?' scenario for you: what if the environmentalists smartened up and lobbied governments to pass a law requiring all hydraulic equipment users to account for and document all deliveries and disposals of hydraulic oil?</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/hydraulics-work">Hydraulics At Work</a></li> </ul></div><p><a href="http://hydraulicspneumatics.com/blog/your-hydraulic-machine-leaker" target="_blank">read more</a></p> http://hydraulicspneumatics.com/blog/your-hydraulic-machine-leaker#comments Hydraulics At Work Tue, 14 Oct 2014 03:10:00 +0000 29411 at http://hydraulicspneumatics.com Cautious Optimism Among Manufacturers as U.S. Economy Surges http://hydraulicspneumatics.com/news/cautious-optimism-among-manufacturers-us-economy-surges <div class="node-body article-body">According to a recently released report from the National Association of Manufacturers, the U.S. economy grew an annualized 4.6% in the second quarter of 2014, its fastest pace since the fourth quarter of 2011. In the real gross domestic product (GDP) report, consumer and business </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/news/cautious-optimism-among-manufacturers-us-economy-surges" target="_blank">read more</a></p> http://hydraulicspneumatics.com/news/cautious-optimism-among-manufacturers-us-economy-surges#comments News Mon, 13 Oct 2014 20:23:00 +0000 29401 at http://hydraulicspneumatics.com Courtesy John Moore/Getty Images Ductile Iron Seminar Coming Soon http://hydraulicspneumatics.com/news/ductile-iron-seminar-coming-soon <div class="node-body article-body">The Ductile Iron Society will host a ductile iron seminar, October 28th, at the Decatur Conference Center & Hotel, Decatur, Il. This one-day only event is a learning opportunity for OEM and end-user </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/news/ductile-iron-seminar-coming-soon" target="_blank">read more</a></p> http://hydraulicspneumatics.com/news/ductile-iron-seminar-coming-soon#comments News Community Mon, 13 Oct 2014 20:03:00 +0000 29391 at http://hydraulicspneumatics.com NFPA Releases Latest Industry Shipment Figures http://hydraulicspneumatics.com/news/nfpa-releases-latest-industry-shipment-figures <div class="node-body article-body">The latest data published by the National Fluid Power Association shows industry shipments of fluid power products for July 2014 increased 10.4% compared to June 2013, and remained the same when compared to last month. Industrial hydraulic, mobile hydraulic and pneumatic </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/news/nfpa-releases-latest-industry-shipment-figures" target="_blank">read more</a></p> http://hydraulicspneumatics.com/news/nfpa-releases-latest-industry-shipment-figures#comments News Mon, 13 Oct 2014 19:08:00 +0000 29381 at http://hydraulicspneumatics.com Keeping the Forest Green http://hydraulicspneumatics.com/hydraulic-fluids/keeping-forest-green <div class="field-deck"> National parks, forests, and recreation areas are environmentally sensitive, and naturally great candidates for hydraulic fluids formulated for minimal environmental impact. </div> <div class="node-body article-body">To preserve the 879,000 acres of forest, Hiawatha National Forest Fleet manager W. Toby Rhue partnered with Michigan Soybean Promotion Committee (MSPC) Field Operations Director Keith Reinholt to incorporate bio-based products use at the facility in Michigan. </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/hydraulic-fluids/keeping-forest-green" target="_blank">read more</a></p> http://hydraulicspneumatics.com/hydraulic-fluids/keeping-forest-green#comments Products Forestry & Lumber Hydraulic Fluids Mon, 13 Oct 2014 18:45:00 +0000 29361 at http://hydraulicspneumatics.com Are You Using EtherCAT? http://hydraulicspneumatics.com/other-technologies/are-you-using-ethercat <div class="node-body article-body">EtherCAT products from Balluff Inc., such as linear position transducers, network blocks, network cables, indicator lights, RFID read/write heads, tags, and processors, meet the open industrial Ethernet protocol's standards for automation applications. </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/other-technologies/are-you-using-ethercat" target="_blank">read more</a></p> http://hydraulicspneumatics.com/other-technologies/are-you-using-ethercat#comments Other Technologies Mon, 13 Oct 2014 15:15:00 +0000 29341 at http://hydraulicspneumatics.com Hose Family Aims at Simplicity http://hydraulicspneumatics.com/hose-tubing/hose-family-aims-simplicity <div class="node-body article-body">GlobalCore – a series of five types of hydraulic hose and two series of fittings that match them all – significantly reduces engineering and service complexity by covering the most commonly used constant-working-pressure classes in industry</div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/hose-tubing/hose-family-aims-simplicity" target="_blank">read more</a></p> http://hydraulicspneumatics.com/hose-tubing/hose-family-aims-simplicity#comments Hose & Tubing Mon, 13 Oct 2014 14:47:00 +0000 29311 at http://hydraulicspneumatics.com The Big 5 for Electric Motors http://hydraulicspneumatics.com/hydraulic-pumps-motors/big-5-electric-motors <div class="field-deck"> Five important points about specifying an electric motor to drive a hydraulic pump. </div> <div class="node-body article-body">Understanding the basic parameters of electric motors is key when specifying one for a particular HPU application, so one must consider five basic factors: horsepower, rotational speed, voltage/phase, frame size/configuration, and enclosure.</div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/big-5-electric-motors" target="_blank">read more</a></p> http://hydraulicspneumatics.com/hydraulic-pumps-motors/big-5-electric-motors#comments Hydraulic Pumps & Motors Fri, 10 Oct 2014 20:57:00 +0000 29291 at http://hydraulicspneumatics.com Air Preparation Product Line http://hydraulicspneumatics.com/products/air-preparation-product-line <div class="node-body article-body">MS Series product line for modern compressed air preparation includes pressure regulators, on/off and soft-start valves with safety functions, fillers, pressure and flow rate sensors and lubricators. </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/products/air-preparation-product-line" target="_blank">read more</a></p> http://hydraulicspneumatics.com/products/air-preparation-product-line#comments Products Air Compressors Fri, 10 Oct 2014 20:54:00 +0000 29281 at http://hydraulicspneumatics.com High-Pressure Hydraulic Hose http://hydraulicspneumatics.com/hose-tubing/high-pressure-hydraulic-hose <div class="node-body article-body">Four-spiral EC525 AQP Plus hose features proprietary AQP Plus elastomer compound. The tube and cover compound offers extended hose life, lower maintenance and is compatible with a broader </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/hose-tubing/high-pressure-hydraulic-hose" target="_blank">read more</a></p> http://hydraulicspneumatics.com/hose-tubing/high-pressure-hydraulic-hose#comments Hose & Tubing Fri, 10 Oct 2014 20:32:00 +0000 29271 at http://hydraulicspneumatics.com Hydraulic Die-Cushion Drive Can Save Significant Energy on Presses http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-die-cushion-drive-can-save-significant-energy-presses <div class="node-body article-body">Voith’s CSH die-cushion drive, which consists of a servopump and a double-acting die cushion mounted underneath the bolster plate. needs no valves and significantly reduces energy consumption of the press.</div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-die-cushion-drive-can-save-significant-energy-presses" target="_blank">read more</a></p> http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-die-cushion-drive-can-save-significant-energy-presses#comments Hydraulic Pumps & Motors Fri, 10 Oct 2014 20:20:00 +0000 29251 at http://hydraulicspneumatics.com Proportional Control Valve http://hydraulicspneumatics.com/products/proportional-control-valve <div class="node-body article-body">The PC3 Valve is a 10-32 threaded, 2-port proportional valve capable of 0-24 lpm flow at 2.3-W maximum power consumption. Designed using a frictionless flat-spring armature. It’s available </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/products/proportional-control-valve" target="_blank">read more</a></p> http://hydraulicspneumatics.com/products/proportional-control-valve#comments Products Pneumatic Valves Fri, 10 Oct 2014 19:34:00 +0000 29241 at http://hydraulicspneumatics.com Variable-Speed Pump Drive http://hydraulicspneumatics.com/products/variable-speed-pump-drive <div class="node-body article-body">​Sytronix SVP 7010 variable speed pump drive offers a performance range up to 120 kW. It uses pre-programmed features to provide high control accuracy</div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/products/variable-speed-pump-drive" target="_blank">read more</a></p> http://hydraulicspneumatics.com/products/variable-speed-pump-drive#comments Products Hydraulic Pumps & Motors Fri, 10 Oct 2014 19:25:00 +0000 29211 at http://hydraulicspneumatics.com Troubleshooting Challenge: Hydraulic system causes structural failure http://hydraulicspneumatics.com/cylinders-actuators/troubleshooting-challenge-hydraulic-system-causes-structural-failure <div class="node-body article-body">I was asked to examine and review the circuit design on a walking-beam conveyor system in a pipe mill that had one of two lifting cylinders suddenly drop. This caused one side of the structural frame to fracture, dropping a 60,000-lb coil of ½-in. steel into a pit.</div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/cylinders-actuators/troubleshooting-challenge-hydraulic-system-causes-structural-failure" target="_blank">read more</a></p> http://hydraulicspneumatics.com/cylinders-actuators/troubleshooting-challenge-hydraulic-system-causes-structural-failure#comments Cylinders & Actuators Other Industries Fri, 10 Oct 2014 19:23:00 +0000 29221 at http://hydraulicspneumatics.com Pressure Sensor http://hydraulicspneumatics.com/products/pressure-sensor <div class="node-body article-body">PX51-USBH pressure sensor features a high precision 1kHz 24bit USB core combined with heavy-duty bonded film pressure sensor. USB output allows pressure ranges up to 30,000 psi. It </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/products/pressure-sensor" target="_blank">read more</a></p> http://hydraulicspneumatics.com/products/pressure-sensor#comments Products Fri, 10 Oct 2014 19:21:00 +0000 29201 at http://hydraulicspneumatics.com Solenoid Pneumatic Valves http://hydraulicspneumatics.com/products/solenoid-pneumatic-valves <div class="node-body article-body">The Nitra line of pneumatics products adds directional control solenoid valves, providing more choices in size and volume. Configurations include: single solenoid, two-position and double </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/products/solenoid-pneumatic-valves" target="_blank">read more</a></p> http://hydraulicspneumatics.com/products/solenoid-pneumatic-valves#comments Products Pneumatic Valves Fri, 10 Oct 2014 19:16:00 +0000 29191 at http://hydraulicspneumatics.com Hose Safety Retention System http://hydraulicspneumatics.com/products/hose-safety-retention-system <div class="node-body article-body"><p><img alt="" src="/site-files/hydraulicspneumatics.com/files/uploads/2014/10/Pirtek%20Whip%20Check.jpg" style="width: 400px; height: 183px; float: left; margin: 3px;" />The Whip Check system is designed to restrain the hose from the &ldquo;Whipping Effect&rdquo; created by the release of energy. The system utilizes a safety cable and clamp assembly to secure the hose to the equipment using high tensile screws.&nbsp; Hose clamp is selected based on the type of hose connection.</p></div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/products/hose-safety-retention-system" target="_blank">read more</a></p> http://hydraulicspneumatics.com/products/hose-safety-retention-system#comments Products Hose & Tubing Fri, 10 Oct 2014 19:10:00 +0000 29181 at http://hydraulicspneumatics.com Dual Function Valve http://hydraulicspneumatics.com/products/dual-function-valve <div class="node-body article-body">The 281 PRI/Chek Valve combines the function of a pressure relief valve in parallel with a check valve in one insert. Relief valve function features a Tungsten Carbide ball and 440C seat. The remaining </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/products/dual-function-valve" target="_blank">read more</a></p> http://hydraulicspneumatics.com/products/dual-function-valve#comments Products Hydraulic Valves Fri, 10 Oct 2014 19:05:00 +0000 29171 at http://hydraulicspneumatics.com Options Add Functionality to Motion Controllers http://hydraulicspneumatics.com/controls-instrumentation/options-add-functionality-motion-controllers <div class="field-byline"> Jacob Paso, Delta Computer Systems Inc. </div> <div class="field-deck"> A motion-control solution that supports custom feedback capability adds flexibility to systems constrained by the sensor/motion-axes relationship. </div> <div class="node-body article-body">A motion-control solution that supports custom feedback capability adds flexibility to systems constrained by the sensor/motion-axes relationship.</div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/controls-instrumentation/options-add-functionality-motion-controllers" target="_blank">read more</a></p> http://hydraulicspneumatics.com/controls-instrumentation/options-add-functionality-motion-controllers#comments Controls & Instrumentation Other Components Fri, 10 Oct 2014 16:40:00 +0000 29151 at http://hydraulicspneumatics.com Direct-Drive Radial-Piston Motor http://hydraulicspneumatics.com/products/direct-drive-radial-piston-motor <div class="node-body article-body">The Hydre-Mac direct-drive radial-piston motor handles variable-speed applications requiring less energy to deliver more power. The low-speed, high-torque motor, featuring a cam-lobe </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/products/direct-drive-radial-piston-motor" target="_blank">read more</a></p> http://hydraulicspneumatics.com/products/direct-drive-radial-piston-motor#comments Products Hydraulic Pumps & Motors Fri, 10 Oct 2014 16:30:00 +0000 29141 at http://hydraulicspneumatics.com Pneumatic Twin-Piston Semi-Rotary Drive http://hydraulicspneumatics.com/products/pneumatic-twin-piston-semi-rotary-drive <div class="node-body article-body">DRRD twin-piston pneumatic rotary actuators use rack-and-pinion assembly for high torque and rotational speed in a compact package. Ideal for material handling and assembly operations, it offers</div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/products/pneumatic-twin-piston-semi-rotary-drive" target="_blank">read more</a></p> http://hydraulicspneumatics.com/products/pneumatic-twin-piston-semi-rotary-drive#comments Products Fri, 10 Oct 2014 16:23:00 +0000 29131 at http://hydraulicspneumatics.com Absolute Linear Position Transducer http://hydraulicspneumatics.com/products/absolute-linear-position-transducer <div class="node-body article-body">Measurement Specialties’ new PT420 absolute linear position transducer, has a full-scale measurement range from 2 in. to 100 in. with infinite output resolution. Its two output signals, </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/products/absolute-linear-position-transducer" target="_blank">read more</a></p> http://hydraulicspneumatics.com/products/absolute-linear-position-transducer#comments Products Fri, 10 Oct 2014 15:56:00 +0000 29101 at http://hydraulicspneumatics.com Hydraulic Traction Circuit Treats Golf-Course Greens Gently http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-traction-circuit-treats-golf-course-greens-gently <div class="node-body article-body">The Toro Co. has designed and patented a hydraulic traction circuit that enables a groundskeeper to easily manicure golf greens with the speed and convenience of a riding mower. The triplex configuration has two drive tires in front and a steering tire in back.</div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-traction-circuit-treats-golf-course-greens-gently" target="_blank">read more</a></p> http://hydraulicspneumatics.com/hydraulic-pumps-motors/hydraulic-traction-circuit-treats-golf-course-greens-gently#comments Hydraulic Pumps & Motors Fri, 10 Oct 2014 15:51:00 +0000 29111 at http://hydraulicspneumatics.com Electrically Powered Gear Pump Slashes Fuel Consumption http://hydraulicspneumatics.com/hydraulic-pumps-motors/electrically-powered-gear-pump-slashes-fuel-consumption <div class="field-byline"> Ray Scroggins, Scroggins Associates </div> <div class="field-deck"> Using batteries to drive an electric motor, the hydraulic power unit of Versalift bucket lifts run cleaner and quieter, while resulting in significant fuel savings over their powertrain-driven counterparts. </div> <div class="node-body article-body">Using batteries to drive an electric motor, the hydraulic power unit of Versalift bucket lifts run cleaner and quieter, while resulting in significant fuel savings over their powertrain-driven counterparts. </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/electrically-powered-gear-pump-slashes-fuel-consumption" target="_blank">read more</a></p> http://hydraulicspneumatics.com/hydraulic-pumps-motors/electrically-powered-gear-pump-slashes-fuel-consumption#comments Other Industries Hydraulic Pumps & Motors Thu, 09 Oct 2014 20:53:00 +0000 29081 at http://hydraulicspneumatics.com New HPU Gives WWII Sub New Life http://hydraulicspneumatics.com/hydraulic-pumps-motors/new-hpu-gives-wwii-sub-new-life <div class="field-byline"> Joseph Kane, Bosch Rexroth </div> <div class="field-deck"> A team restoring a vintage submarine docked at San Francisco’s Fisherman’s Wharf wanted a more efficient and easier-to-operate system for operating a periscope, torpedo doors, and other hydraulic functions. They found it in a modular hydraulic power unit from Bosch Rexroth. </div> <div class="node-body article-body">A team restoring a vintage submarine docked at San Francisco’s Fisherman’s Wharf wanted a more efficient and easier-to-operate system for operating a periscope, torpedo doors, and other hydraulic functions. They found it in a modular hydraulic power unit from Bosch Rexroth. </div> <div class="og_rss_groups"></div><p><a href="http://hydraulicspneumatics.com/hydraulic-pumps-motors/new-hpu-gives-wwii-sub-new-life" target="_blank">read more</a></p> http://hydraulicspneumatics.com/hydraulic-pumps-motors/new-hpu-gives-wwii-sub-new-life#comments Hydraulic Pumps & Motors Thu, 09 Oct 2014 19:16:00 +0000 29061 at http://hydraulicspneumatics.com