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Name that gizmo

Gunner
Gunner Member Posts: 16
I've worked in the HVAC field for 25 years and have not come across the attached valve. It is installed in a steam line at a hospital in Vermont. The inlet side is attached to the building steam main at about 15 psi.The discharge side is piped up through the roof and emits a constant flow of steam to the outside. The Owner has done some research and has the understanding the valve serves as a pressure relief valve, in some capacity. The handwheel has cast lettering to turn clockwise to increase pressure.

I would appreciate any explanation on the purpose of this valve. Obviously it's very old and probably obsolete. The Owner is wondering if it can be removed and capped.

Comments

  • gerry gill
    gerry gill Member Posts: 3,078
    i may be able to help

    better if you could get the rest of the patent info for me.
    gwgillplumbingandheating.com
    Serving Cleveland's eastern suburbs from Cleveland Heights down to Cuyahoga Falls.

  • Tom bates
    Tom bates Member Posts: 29
    back pressure valve

    HI, That looks to be a back pressure valve. They were used when then building had its own power plant and used the waste steam to heat the building. However if there was a high demand for power, and low demand for heat there would be excess steam, and when pressure built up in the heating system the valve would discharge the excess. - Tom
  • Steamhead
    Steamhead Member Posts: 16,736
    I think you nailed it, Tom

    interesting that Cochrane was part of Crane..........
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • Hap_Hazzard
    Hap_Hazzard Member Posts: 2,849
    They still are--what's left of them.

    Crane acquired them in the 60s, and they in turn acquired Chicago Heater in the 80s. Now they're called Crane-Cochrane Environmental. They moved their offices to Norristown when they closed their manufacturing facility. (Wonder where they moved that to.)
    Just another DIYer | King of Prussia, PA
    1983(?) Peerless G-561-W-S | 3" drop header, CG400-1090, VXT-24
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
  • Gunner
    Gunner Member Posts: 16
    Back pressure valve

    Thanks for your help.I will investigate if the hospital ever generated their own power, which would have been years ago. Sounds like lots of energy wasted over the years.
This discussion has been closed.