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Help! What is this?

Tony_23
Tony_23 Member Posts: 1,033
in THE MAIN WALL
I've seen ONE installed in the late 40's or 50's.

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Comments

  • Frank Lesh
    Frank Lesh Member Posts: 3
    help! What is this?

    I'm new to this forum, but a buddy of mine asked me what this is. I didn't know but I just left Dan's class in Hillside, IL and he said post the photo...someone will know.

    Thanks,

    Frank
  • Ron Schroeder
    Ron Schroeder Member Posts: 998
    Gee

    I thought Dan would have said if you don't know what it is and it appears to be working you very slowly back out the door and walk away gingerly. Actually I am sure Dan is right and someone here will know what it is.
  • gerry gill
    gerry gill Member Posts: 3,078
    does it have a name on it..

    some identifying info at all? the handle on the top sort of suggests some sort of a relief valve..any wording on it would help..

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  • Frank Lesh
    Frank Lesh Member Posts: 3


    Here's a little more info. It was on an older hot water boiler (20 yrs plus). Boiler had standard t/p valve. But this was where you might find the back flow prevention valve. Three lines run to/from the valve, water line in, water line to boiler and a third for drainage. After boiler ran for about 3-4 minutes, the valve began to discharge. I understand boilers but this valve was a new one. Anyone familair with it and if the unit replaces the standard t/p valve?
    Hope that helps.
  • bob_50
    bob_50 Member Posts: 306
    It's a

    B&G No. 500 Self-Filling valve. It combines a relief valve set at 30psi, a reducing valve factory set at 12 psi (adjustable) and a by-pass.
  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928


    From the three lines you describe (fresh in, fresh to boiler & drain) it sounds like some sort of fill valve. Perhaps lifting the handle gives "fast fill" and the discharge acts as a sort of over-pressure (but not temp) relief???

    Is there any provision for adjustment?
  • [Deleted User]
    [Deleted User] Posts: 0
    Some how...

    I KNEW you'd know what it was:-)

    Good call Bob!

    ME
  • Frank Lesh
    Frank Lesh Member Posts: 3


    Thanks guys. It's great to know there is help out there.

    Frank
  • DanHolohan
    DanHolohan Member, Moderator, Administrator Posts: 16,601
    Frank,

    it's in the Library. Right HERE. Great to see you last night. Thanks.
    Retired and loving it.
  • bert
    bert Member Posts: 50
    B&G 500

    From a 1957 catalog
This discussion has been closed.

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