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Thread: Valve Recommendation

  1. #1

    Default Valve Recommendation

    I need to replace the PVC globe valves in my existing water source heat pump installation. When adjusting the water flow rate I get a water turbulence and squealing noise. I have two valves in the system, one needs a 1GPM and the other 3GPM flow rate @50psi. I have tried 'dole' valves without success.

    Any suggestions will be appreciated.

  2. #2

    Default Fyi

    I found gate valves to be the answer.... NO noise and good flow adjustment.

  3. #3
    Plumbing Instructor Plumb or Die's Avatar
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    Jan 2007
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    Southern BC Canada
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    Use a globe valve. Gate valves, like ball valves are best not used for throttling applications, because they wear out.
    I like plumbing. Plumbing's my favorite.

  4. #4

    Default

    I was using globe valves..... Toooo noisy

  5. #5
    Homeowner geniescience's Avatar
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    Nov 2005
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    need low noise globe valves too. Wish I could find more info on them, in general, too.

    david

  6. #6
    DIY Senior Member CHH's Avatar
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    May 2007
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    Denver, CO
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    Have you looked into manual balancing valves or differential bypass valves?

  7. #7
    Licensed Grump GrumpyPlumber's Avatar
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    Circuit setters
    "The biggest regrets we have in life are the chances we never took."

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