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New valves for an old vapor system..

tmw
tmw Member Posts: 56
I've got an Arco Model K vapor orifice system and am looking for some new valves. Does anyone produce a thermostatic valve with an adjustable orifice? 

Comments

  • Thermostatic Orifice Valves

    Hi - Try Tunstall. They make Macon TRVs.   http://www.maconcontrol.com/inletorifice.html

    - Rod
  • Steamhead
    Steamhead Member Posts: 15,262
    Not that I know of

    you'd need to add an orifice plate. But a TRV already has some resistance built in, so you may not need to add any.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • tmw
    tmw Member Posts: 56
    much thanks for the replies...

    and Steamhead, what say you about rebuilding the original valves?
  • Steamhead
    Steamhead Member Posts: 15,262
    Still working on that

    I got back and hit the ground running, a lot of systems developed problems over that first cold weekend. We're almost caught up, just in time for the next one. 24 inches of snow so far.......
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • Adjustable orifice Valves..

    Check out "Mepco" and "Barnes and Jones".  Mepco lists one and B and J aldo has something, I think.



    Boilerpro
    The Steam Whisperer (Formerly Boilerpro)

    Chicago's Steam Heating Expert





    Noisy Radiators are a Cry for Help
  • Steve_210
    Steve_210 Member Posts: 615
    Model K vapor system

    we just added 250 orifice plates to a system. 150 were trv;s 100 regular and the rest are original model k. while it got rid of the water hammer some of the original rads now heat better than the new. i wish the new orifaces were adjustable.
  • Adjustable Orifice Valves

    I think these are the ones that Boiler Pro was mentioning.
  • tmw
    tmw Member Posts: 56
    thanks for all the replies..

    I've seen several brands of adjustable orificie valves. Is it possible to add individual thermostatic regulation to them?
  • Wellll......

    You could purchase the Mepco valves and then have Tunstall build TRV inserts for them.  They do custom work.



    Boilerpro
    The Steam Whisperer (Formerly Boilerpro)

    Chicago's Steam Heating Expert





    Noisy Radiators are a Cry for Help
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