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old supply valves on 2 pipe systems

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Hollis
Hollis Member Posts: 105
in Strictly Steam
This house has the old supply valves on the two pipe system that has a wooden handle and a pointer that says 'open" and "shut" However they don't seem to respond to much,..a few were stuck and with some tapping back and forth they have loosened up. but it looks like despite it moving, the radiators stay full on. I'm guessing that they are internally stuck? (although it  "sounds" like things slide inside them like a sliding  gateway.)

Guessing that they just need to come off and replaced with new valves?  (i hoped to get them functioning as I like the antiquity of them.)

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  • Steamhead
    Steamhead Member Posts: 16,948
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    Before you replace them

    take some pics of a valve up close, and a couple radiators. Some of these valves had orifices in them that kept steam from reaching the return lines.



    Have you found any manufacturer's name on these valves?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • vaporvac
    vaporvac Member Posts: 1,520
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    I'll take them...

    If you don't want them or can't fix them, please contact me as I would like them. I'm trying to replace the ones in my house that were removed.Thank you.
    Two-pipe Trane vaporvacuum system; 1466 edr
    Twinned, staged Slantfin TR50s piped into 4" header with Riello G400 burners; 240K lead, 200K lag Btus. Controlled by Taco Relay and Honeywell RTH6580WF

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