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Water inlet valve diaphragm operation

  1. Apr 16, 2014 #1
    I am investigating the cause for malfunction of a solenoid water inlet valve (when de-energized, the valve fails to close and instead exhibits cyclic surging of water flow). 4 of the 6 bleed holes are blocked with debris, and I have concluded that this is what caused the valve to malfunction However, I need to describe what exactly happens within the valve & diaphragm when bleed holes are blocked.
  2. jcsd
  3. Apr 17, 2014 #2


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    Please provide a section drawing or a link to the valve type you are using.
  4. Apr 17, 2014 #3
    solenoid valve diaphragm

    I don't have a section diagram for this particular valve but http://en.wikipedia.org/wiki/Solenoid_valve has a pretty good general one. I attached 3 photos of the valve & diaphragm with the blocked holes indicated.

    Attached Files:

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