Sizing a Pressure Relief Valvle

Discussion in 'Boiler Forum' started by dlee, Jul 18, 2010.

  1. dlee

    dlee New Member

    Messages:
    2
    Location:
    Maryland
    My heater is 399,900 BTU input and has a working pressure of 75 PSIG. Can I use a 510,000 BTU pressure relief valve witha rating of 30 PSI? The maximum working pressure on one device in the system is 50 PSI and the max presure in the system is 20 PSI.
  2. Furd

    Furd Engineer

    Messages:
    446
    Location:
    Wet side of Washington State
    Yes. sojkp[owfmz[p
  3. nhmaster3015

    nhmaster3015 Master Plumber

    Messages:
    836
    Location:
    The granite state
    what type of heater?
Similar Threads: Sizing Pressure
Forum Title Date
Boiler Forum Sizing for a new boiler in Watertown, MA Mar 8, 2014
Boiler Forum Need help sizing replacement boiler in Connecticut Feb 21, 2014
Boiler Forum Help Sizing new Mod/Con boiler to exiting HWB, part of larger basement remodel Dec 6, 2013
Boiler Forum Clarity boiler sizing Oct 8, 2013
Boiler Forum Sizing a Boiler Expansion Tank Sep 23, 2013

Share This Page