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Finding a pressuretrol

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Lakewood
Lakewood Member Posts: 9
in Strictly Steam
Dan the Great says to have a steam boiler set to 1/2 psi. I am working on a comercial boiler but 5he pressure can't go lower than 2psi. I would like to change it. I looked for one but don't know which one to get. The pressuretroll has to be 120v. Any suggestions?

Comments

  • Jamie Hall
    Jamie Hall Member Posts: 27,380
    Your regular supplier should be able to get one, if he doesn't have one -- try State Supply
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • Lakewood
    Lakewood Member Posts: 9
    Model number?
  • Jamie Hall
    Jamie Hall Member Posts: 27,380
    Honeywell PA404A1033. Supply House has them in stock... https://www.supplyhouse.com/Honeywell-PA404A1033-Pressuretrol-1741000-p
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • BobC
    BobC Member Posts: 5,566
    The lowest a pressuretrol will go is 1.5 PSI, to go lower you need a vaporstat.

    Bob
    Smith G8-3 with EZ Gas @ 90,000 BTU, Single pipe steam
    Vaporstat with a 12oz cut-out and 4oz cut-in
    3PSI gauge
  • ChrisJ
    ChrisJ Member Posts: 17,391
    BobC said:

    The lowest a pressuretrol will go is 1.5 PSI, to go lower you need a vaporstat.

    Bob

    Is that a 20 PSI Pressuretrol or a 4 PSI Pressuretrol?

    Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

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