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  1. #1
    Join Date
    Nov 2005
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    VP525C Series Pneumatic Radiator Valve

    installed new VP525C1024 VP525C Series Pneumatic Radiator Valve will not close off steam. i have 10psi at control and at valve actuator. valve had 3-10 psi spring also tryed the 2-5 spring still not closing all the way

    what do i need to check now?

  2. #2
    Join Date
    Feb 2009
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    It is a normally open valve so you need full pressure to close it. If it does not close at 15 psi maybe there is a bur on the seat.

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