Zone valve sizing

Discussion in 'Boiler Forum' started by jpiazza, May 15, 2009.

  1. jpiazza

    jpiazza New Member

    Jun 11, 2007
    Hi to all. I am zoning my Peerless boiler into two zones one feeding the first and second floor with 1 1/4" pipe and the second zone feeding the basement with 1" pipe. Do my zone valves have to match the diameter of the pipe they are serving? Also any advice on which valve would best work with my system would be greatly appreciated. I have a Honeywell L8148E Aquastat and a B&G NRF-22 circulator. Thanks
  2. zl700

    zl700 DIY Senior Member

    Aug 26, 2009
    Western NY
    No they do not need to be of the same pipe size. Just capable of flowing the desired GPM to meet radiation requirements for heat loss, at given head, temp & delta T
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