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steam pressure

Joeyjr
Joeyjr Member Posts: 11
in Strictly Steam
What is the best way to slow steam down when I only have 11/2 supplies?

Comments

  • Dave in QCA
    Dave in QCA Member Posts: 1,788
    Turn off the boiler....

    But then, I don't think that is really what you're asking.

    Can you elaborate a little bit.  What is the problem?  Describe your system, pictures always help.
    Dave in Quad Cities, America
    Weil-McLain 680 with Riello 2-stage burner, December 2012. Firing rate=375MBH Low, 690MBH Hi.
    System = Early Dunham 2-pipe Vacuo-Vapor (inlet and outlet both at bottom of radiators) Traps are Dunham #2 rebuilt w. Barnes-Jones Cage Units, Dunham-Bush 1E, Mepco 1E, and Armstrong TS-2. All valves haveTunstall orifices sized at 8 oz.
    Current connected load EDR= 1,259 sq ft, Original system EDR = 2,100 sq ft Vaporstat, 13 oz cutout, 4 oz cutin - Temp. control Tekmar 279.
    http://grandviewdavenport.com
  • crash2009
    crash2009 Member Posts: 1,484
    1.5" supply valves?

    Too much pressure?  Is the steam coming out of the boiler or the radiator?
  • Joeyjr
    Joeyjr Member Posts: 11
    Too much pressure

    I'm going to be replacing the existing boiler so when I do I'm trying to get the boiler to stay running longer and not bounce on and off due to pressure. Is down firing the boiler an option? It's only a little 3 section residential.
  • Dave in QCA
    Dave in QCA Member Posts: 1,788
    Properly sized boiler would help

    You need to purchase a boiler that is matched to your load.  Do you have cast iron radiators?  They are measured in sq ft of radation.   A steam boiler also shows the sq ft of steam radiation that it will accomodate.  If they are properly matched, the short cycling that you describe should go away.
    Dave in Quad Cities, America
    Weil-McLain 680 with Riello 2-stage burner, December 2012. Firing rate=375MBH Low, 690MBH Hi.
    System = Early Dunham 2-pipe Vacuo-Vapor (inlet and outlet both at bottom of radiators) Traps are Dunham #2 rebuilt w. Barnes-Jones Cage Units, Dunham-Bush 1E, Mepco 1E, and Armstrong TS-2. All valves haveTunstall orifices sized at 8 oz.
    Current connected load EDR= 1,259 sq ft, Original system EDR = 2,100 sq ft Vaporstat, 13 oz cutout, 4 oz cutin - Temp. control Tekmar 279.
    http://grandviewdavenport.com
  • haaljo
    haaljo Member Posts: 112
    Shoud be easy to reduce pressure

    1) Do you have a  gauge (3#) on your pipe? The one on the boiler doesn't count.

    2) Do you know what a pressuretrol is?

    Sometimes the pressuretrol is not operating for a number of reasons. Read up on this stuff including Dan's books. "You got Steam" is a great first read.
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