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  1. LNGDesigner

    HDPE closure welds/bolt-ups allowed per NFPA 24 hydro testing versus service testing?

    Ok, thanks stookeyfpe for the info. Ya i read that you could go to AWWA in some instances, but that wouldnt help me much. And yes i have seen the gate's leak by too fast for a proper test, typically ones that have been in service for a while. Even NFPA 24 states that code prefers you not test...
  2. LNGDesigner

    HDPE closure welds/bolt-ups allowed per NFPA 24 hydro testing versus service testing?

    I am not trying to apply one to the other, just using 31.3 as a reference. And one cannot hydrotest against an isolation gate valve in the first place, and at 225psi defintely not. So how does NFPA 24 code treat closure fusion welds or bolt-ups when they cannot be hydrotested feasibly? Are they...
  3. LNGDesigner

    HDPE closure welds/bolt-ups allowed per NFPA 24 hydro testing versus service testing?

    All, I had a question involving closure fusion welds or closure bolt-ups on a private fire main system. NFPA 24 states "all piping and attached appurtenances shall be hydrostatically tested" and basically thats all it says about testing. This is not very informative as i am used to B31.3 where...

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