More in Hydraulic Fluids

  • Aug 21, 2015
    blog

    Bulk Modulus for Dummies

    I was in high school when Vincent Magorien wrote what I consider to be the definitive treatise on bulk modulus. That was way back in 1969. But like gravity, bulk modulus is one of those fundamentals that has not and will not change — except maybe in science fiction....More
  • Jul 9, 2015
    blog

    Of Airplanes and Hydraulic Oil

    This is the second month in a row where I feel compelled to pay tribute to someone important to the fluid power industry who has died. Ned Stull retired from Hydraulics & Pneumatics as executive editor in May 1993 and passed away June 8. I had the pleasure and privilege of working with Ned for only six years, but he made huge contributions to our coverage of hydraulics in the aerospace industry for more than 20 years....More
  • Apr 24, 2015
    Best Practices

    Using Water Glycol as Your Hydraulic Fluid?

    Using water glycol for a system's hydraulic fluid requires a lot of investigation....More
  • Nov 13, 2014
    Article

    Tried & True Ways of Dealing with Air in Hydraulic Fluid

    Symptoms typical of an aerated hydraulic system plagued the F-104 aircraft for years. Aeration was caused by system components with built-in chambers and passages where free air (bubbles) collected when system fluid was saturated or at rest with no pressure acting on the fluid....More
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