PRV

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IMG_5187.jpeg

Should this PRV be replaced? It was just installed last year, and at some point over the summer the homeowner’s had a bathroom re done in which the demo crew hit a baseboard line. The water to the boiler was turned off, but apparently when it was refilled, or attempted to be refilled, the quick fill lever was forced all the way to the right ( why pay attention to the tag, on top of the valve) for now the boiler seems to be holding pressure but the boiler has not been running a lot as we are in the start of the heating season. I am thinking it should just be replaced, but the house has multiple zones that would have to vent as there is really no way to isolate the PRV thanks to all

Comments

  • hot_rod
    hot_rod Posts: 28,705

    Does it regulate properly with the lever in the correct position?

    If you do replace it the backflow device should be upstream of the PRV

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • HVACNUT
    HVACNUT Posts: 7,784

    Either the PRV is piped backwards, or the Back Flow Preventer is after the PRV.