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  1. DavidMBrown

    Emergency Venting for Motor Oil

    We're designing a facility to store motor oil, a class IIIB liquid, in bulk tanks ranging from 2,000 to 10,000 gallons. Looking at NFPA 30 para. 22.7.1.1.3, tanks with Class IIIB liquids require emergency venting if they are below 12,000 gallons. We have calculated emergency venting air...
  2. DavidMBrown

    Threading stainless pipe

    We have installed some aboveground jet fuel piping. It is 1.5" Schedule 40 304 stainless. For larger diameters we have always welded pipe but this time we decided to thread it. Now, all the joints are leaking, some worse than others. Is there any reason not to be threading this pipe? Is...
  3. DavidMBrown

    Air Eliminator Causes Cavitation?

    Pumping Jet-A fuel from one storgae tank to another, we have the following setup: Tank -> Floating Suction -> Check valve -> Strainer -> Positive Displacement Pump -> Air Eliminator (NEW) -> Filter/Separator -> Relaxation Chamber -> Meter -> Tank Everything has been working fine, but the...
  4. DavidMBrown

    Temperature Dependence of Oil Viscosity

    I am in need of equations describing the temperature dependence of viscosity of various motor oils, hydraulic oils, gear oils, and ATFs. Typically, product data sheets only give the viscosity at 40 C. There are graphs available that show an approximately log-linear dependence of viscosity with...
  5. DavidMBrown

    Temperature Dependence of Viscosity

    I am in need of equations describing the temperature dependence of viscosity of various motor oils, hydraulic oils, gear oils, and ATFs. Typically, product data sheets only give the viscosity at 40 C. There are graphs available that show an approximately log-linear dependence of viscosity with...

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