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Oscillating pressure regulation system

  1. May 13, 2012 #1
    Hi all,

    I'm after a water system involving some sort of pressure valve (pressure regulator, relief valve etc - whichever gets the job done) where the inlet pressure is always OVER set-pressure, and the valve oscillates (opens and closes rapidly) in response. It is this oscillation that is desirable in my case :)

    I am hoping for some sort of system that:
    - Water flows through system
    - Inlet water pressure builds up to be higher than set-pressure
    - Valve opens (etc) that dumps inlet pressure
    - In response to the lowered inlet pressure the valve closes again
    - Process repeats ad infinitum at a fast rate to oscillate the valve

    I am not concerned by the output. I am simply dumping the water.

    Does a relief valve work like this by default?
    If not, does any body know of a valve, or a modification to a valve, that will produce this property?

    Thanks in advance!
  2. jcsd
  3. May 15, 2012 #2
    A relief valve will get the job done. It does work like that by default.

  4. May 15, 2012 #3
    Don't expect great accuracy though. Also, what sort of volume are you looking to dump?
  5. May 15, 2012 #4
    Thanks guys. The volume of water is not important - I am after the highest rate of oscillation I can get. I'm guessing I just need to tune the system so that the set pressure is much lower than the input pressure, but not too low to keep the valve open.
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