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"Precise" Vapor Radiator Valve

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Steamhead
Steamhead Member Posts: 16,842
in Strictly Steam
Saw this for the first time, on an Orifice system in southern Pennsylvania. It was made by a company called Haynes-Thomson of Philadelphia. The house it's in was built about 1918-1920.



The orificing feature of this valve is a limit stop in the ring that encircles the handle, working much the same way as a temperature limit stop in a shower faucet.



The unique dimensions of this valve mean that if you replace it with a valve of today's standard dimensions, you need an extension coupling.



Anyone else ever see this type of valve?
All Steamed Up, Inc.
Towson, MD, USA
Steam, Vapor & Hot-Water Heating Specialists
Oil & Gas Burner Service
Consulting

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  • JStar
    JStar Member Posts: 2,752
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    Valve

    Never saw that one before. Pennsylvania is a gold mind of vapor systems. Looks like that valve has been wrenched on and off and few times.

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