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Robert O'Brien
Robert O'Brien Member Posts: 3,584
in THE MAIN WALL
Any ideas? It's off a gravity HW system we pulled out in December. Thrush pressure reducing valve and relief valve,can't vouch for the relief but the feeder was still good after what must be at least 70 years!

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  • Steamhead
    Steamhead Member Posts: 18,207
    1940s I believe

    I still see those around here once in a while. 
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • billtwocase
    billtwocase Member Posts: 2,384
    That thrush is

    about 50-60 years old. I have something for you that I will post a pic of here tomorrow. Might be older?
  • Mike Kusiak_2
    Mike Kusiak_2 Member Posts: 602
    Yours looks older than mine!

    This Thrush  valve set was installed in 1955 and still works perfectly. That would make this one 55 years old and it certainly looks more modern than what you have.



     What's even more surprising is that the relief valve still does not

    leak, even after operating the testing lever. They certainly knew how to

    make a quality product back then!
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