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Need to identify a part!

Ted Johnson
Ted Johnson Member Posts: 2
in THE MAIN WALL
We have a two pipe steam boiler system, new boiler installed in 1992. Prior owners removed the old fashioned baffle radiators in two rooms and replaced them with what looks like hot water heat radiators, which must have been converted somehow to accomodate steam. On one of these runs, in a room we're trying to remodel, there is a part that appears to be some sort of regulator or shut off, it looks like a large screw (see attachment). This part leaks and is holding up installing new laminate flooring in the room. We need to replace this part to stop the leak, but even the local heating supply store had no idea what it's function is. It's not a bleeder, that's on the other end of the run and when it is turned it just spins and spins as if it's stripped. Any help would be appreciated. Thank you.

Comments

  • EBEBRATT-Ed_4
    EBEBRATT-Ed_4 Member Posts: 6


    Must be some type of orfice system for two pipe steam
  • Empire_2
    Empire_2 Member Posts: 2,340
    Looks Like

    Almost looks like a ballance valve of some type. Since the house is old can it possibly be a ballance valve for gravity water?? Before it was converted to steam..???
  • Steamhead
    Steamhead Member Posts: 17,550
    I think it's an adjustable orifice

    whose job was to only let the radiator fill to 80% of its capacity with steam. This kept steam out of the dry return.

    Find out what pressure will fill the original rads to 80%, then drill a disk orifice to the proper size (which you get from an orifice table) install the disk in a union on the supply, and it should work OK.

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  • Nron_9
    Nron_9 Member Posts: 237
    valve?

    it looks like a plug valve that you would see on on old gas cock , built like a wedge to slow heat but never sttop it completly like an isolation valve , only ever seen one back in the 1980's.
    oops im dating myself now
  • Al Gregory
    Al Gregory Member Posts: 260


    Should be able to snug it a little Even though it dosnt look like it you can usually still be able too
  • joe_31
    joe_31 Member Posts: 24


    looks just like a butterfly valve/ does not close completly if they are the same/ used to purge loops and adjust flow/ found on returns in hw systems is it sweated on?/ looks it
This discussion has been closed.

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