Discussion in 'Plumbers' Talk' started by eawr89, May 17, 2004.

  1. eawr89

    eawr89 New Member

    Could you please tell me the difference between a service valve, a check valve and an isolating valve, and when each should be used? Sorry for asking such basic questions.
  2. capnpugwash

    capnpugwash New Member

    service valve - as on radiator - one end internal (female) thread
    check valve - only allows water one way - as on outside tap
    isolator valve - often used in-line - both end same - used in pipes feeding taps / wc cistern etc
  3. eawr89

    eawr89 New Member

    Thank you.

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