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12# PRV Which brand actually works

It seems that the PRV on many boilers, does not make up water after a repair to the system. Is there a brand that is more reliable? The common "red" ones seem particularly bad.


  • hot_rod
    hot_rod Member Posts: 21,846
    Caleffi 573 Autofill. It can be easily serviced, cleaned, or cartridge replaced. It is a fast fill valve, always. No levers, bolts, anything to adjust. Sett it and forget it.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • HomerJSmith
    HomerJSmith Member Posts: 2,392
    edited July 2022
    Caleffi autofill is the only valve that I use and it has a shut off knob on the bottom, too. I can set it with a screwdriver to the Xtank pressure easily. If I need a gauge, it has one too. A great product.