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Identify 2 pipe steam radiator supply valve

Jdot
Jdot Member Posts: 2
in Strictly Steam
Recently had a new Steam boiler installed. I took on the task of installing new Tunstall capsules for the Warren Webster traps. I also had a few valves with broken handle stems and wondered if I might be able to find rebuild kits or if its even worth rebuilding them. They seem to have these screws that thread into the sides of the valve. Images attached. Thank you.



Comments

  • clammy
    clammy Member Posts: 3,155
    From the looks of it that has an adjustable inlet orfice which would have been set to limit the amount of steam feeding into the radiator . You may find it difficult and expensive to replace w orificed valves . If unable to locate you can install standard steam angle valves and get blank orifice plates from turnstall and drill out the blank plates and install . Or just install standard steam angle valve and see if you have issue w balance and over heating . I ve ran into instances where it created issues relating to over heating and distribution .
    Peace and good luck clammy

    R.A. Calmbacher L.L.C. HVAC
    NJ Master HVAC Lic.
    Mahwah, NJ
    Specializing in steam and hydronic heating

    mattmia2
  • Big Ed_4
    Big Ed_4 Member Posts: 2,983
    What is the problem with the valve that you have . You normally don't use the shut off .

    There was an error rendering this rich post.

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 16,295
    What @clammy said. It this a vapor system?
    mattmia2
  • mattmia2
    mattmia2 Member Posts: 10,762
    Didn't american radiator make the ones with the screwdriver adjustment in the side?

    https://heatinghelp.com/news-and-media/dead-men-tales/the-model-k-mystery/
    Erin Holohan Haskell
  • Steamhead
    Steamhead Member Posts: 17,326
    mattmia2 said:

    Didn't american radiator make the ones with the screwdriver adjustment in the side?

    https://heatinghelp.com/news-and-media/dead-men-tales/the-model-k-mystery/

    You nailed it, Matt. Those are from an Arco Model K system. Maybe someone added traps to it because they didn't understand the orificing principle?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • Jdot
    Jdot Member Posts: 2
    On the radiators they have Warren Webster 02h traps and Warren Webster 522hb traps that connect the drips at the end of the mains back to the returns that are then pitched back to the boiler room. I put 2 gorton #2s and a Hoffman 75 at the dry return just before it drops down to the wet and into the Hartford loop. Based on the pipe fitters blueprint for my home it originally had a receiver and pump/vacuum instead of relying solely on gravity back when it was coal.   

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