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Source for Replacement Swing Check Valve

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TheClevelandSteamer
TheClevelandSteamer Member Posts: 22
in Strictly Steam

Hello, does anyone have a source for this three-quarter inch swing check valve? This is for the return section of a two pipe steam system.

The Fairbanks brand is out of business and I can't find this exact one. It's 3/4" NPT, 3" long.

If anybody has new old stock, or an alternative brand with a similar spec, I'd appreciate it. Thank you.

IMG_8263.jpeg

Comments

  • hot_rod
    hot_rod Member Posts: 27,884

    looks like a basic tee pattern swingcheck. You may need to shop all the brands to find one exactly the same length.

    Watts, Apollo, Milwaukee, Nibco are a few brands. Unless there is audio. On either side, you may need to cut and do so rethreading. So exact length may not be a issue?

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Larry Weingarten
    Larry Weingarten Member Posts: 4,166

    Hi, A question, or two… What's wrong with the valve? And have you taken the top off to get a look inside? I've often been able to free up stuck valves by removing the top to get access. 🤔

    Yours, Larry

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 20,534

    As @hot_rod mentioned check valves at least threaded ones do not come in a standard length.

  • TheClevelandSteamer
    TheClevelandSteamer Member Posts: 22

    Thanks for the replies.

    I'm doing some off-season repairs and preventative maintenance. Specifically replacing some old piping, which this valve falls in the middle of.

    The gate is frozen but I'm going to take a shot at repairing as suggested. If I can't, I am going to replace just replace it.

  • Mad Dog_2
    Mad Dog_2 Member Posts: 8,690

    Are you sure its even needed? Can you take some pictures of the connecting piping? Mad Dog

    Consulting by Mad Dog & Matt Jr.
    kcopp
  • kcopp
    kcopp Member Posts: 4,704

    Simple fix is to get another swing check. Cut it out and mega press in another check….if the check is needed.

  • hot_rod
    hot_rod Member Posts: 27,884

    The side view shows the hinge pin, I suspect. That is typically what the gate pivots on.

    Looks like maybe a test port up on the top.

    Screenshot 2026-07-05 at 9.24.04 AM.png

    Do you suspect the gate is frozen in the shut or open position? In either case it should have an effect on the operation. I think you would need to take the top assembly cap off to know for sure.

    If it is frozen open and the system works properly, maybe it is not needed?

    Screenshot 2026-07-05 at 9.25.54 AM.png

    You may find old stock Fairbanks checks on ebay.

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • mattmia2
    mattmia2 Member Posts: 17,541

    those were generally used on vapor systems in conjunction with boiler return traps. are you sure the check is bad and it isn't doing exactly what it was designed to do but some knucklheading of the vapor system is preventing it from operating as intended?

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