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Force applied to simple hand pump and resulting PSI

  1. Jul 27, 2009 #1
    I hope I am asking this in the right forum.

    Lets say you have a simple hand pump, similar to a bicycle pump, and you exert X amount of force on the handle. How do you calculate the resulting air pressure it creates out of the small valve at the end?

    Obviously friction between the O-ring and inner wall of the pump is going to come into play, but a rough estimate would do.

    Thanks.
     
  2. jcsd
  3. Jul 27, 2009 #2

    russ_watters

    User Avatar

    Staff: Mentor

    Pressure is force divided by area. Force on the handle, cross sectional area of the piston.
     
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