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Pipe vibration

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jplacey
jplacey Member Posts: 2
New Erie zone valve control was installed on Wednesday and now the pipes vibrate on shut down. Why.

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  • Jamie Hall
    Jamie Hall Member Posts: 23,436
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    Vibrate As in bang? or more like a tone? or... ?

    Is the valve closing with or against the flow? For that matter, is there flow -- pump still running?
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 8,086
    edited February 2020
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    Was the complete valve replaced? or just the actuator? If the complete valve replaced, it may be installed backward. As the valve closes softly, a ball sets against the valve seat when the water flows in the proper direction. If the water is flowing backward the water pressure will slam the ball against the valve seat when the ball gets close to the seat.

    Look for the water flow direction on the valve body, or indication of inlet and outlet.

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

  • jplacey
    jplacey Member Posts: 2
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    Just the actuator was replaced. The previous one when working did not bang the pipes.