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Relief Piping

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Al Letellier
Al Letellier Member Posts: 781
in THE MAIN WALL
Basic rules: full sized, always pitched down, never trapped or valved, max. 6" off the floor.
Found in most plumbing and mechanical codes

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Comments

  • Servicewiz_2
    Servicewiz_2 Member Posts: 28
    Boiler Relief Valve Discharge Piping

    I am in search of code information on the piping out of boiler safety relief valves.Mainly the difference (Hydronic vs. Steam)Any info. with sources is greatly appreciated!!!!!!!!!!!!
  • J.C.A._3
    J.C.A._3 Member Posts: 2,980
    Relief piping,

    The biggest difference...Steam relief is 15 LBS. , MOST hot water relief valves are set at 30 LBS.

    All should terminate "within 12" of the bottom of the boiler" meaning , discharge pipes should terminate within 12" of the floor.( If the boiler is elevated CYA. Put it within a foot of the termination.) I like to keep them as near to the floor as a small bucket will allow. Sometimes , this will keep you from a "after hours repair" for the night. Chris
  • Tony_8
    Tony_8 Member Posts: 608
    I always

    thought NY was within 4 " of the floor, and have done so "forever" :) Keeps that scald potential "down".
This discussion has been closed.

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