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  • vertical check valves?

    My boiler has 6 zones (circulators), two of which have swing check valves installed with a vertical orientation. I can't see why this wouldn't work, but aren't swing check valves supposed to be ALWAYS horizontal? Also, one zone has a spring-loaded check valve. All I've ever seen are taco swing checks.

    My plumber-in-law and I are planning a late Summer re-pipe of the existing boiler, and I'm guessing these need to be addressed.

  • #2
    Re: vertical check valves?

    A swing check (some designs) will work IF the
    flow is up, but it's still not a good choice.

    I think a spring check would be better.
    ---------------
    Light is faster than sound. That's why some people seem really bright until you hear them speak.
    ---------------
    “If I had my life to live over again, I'd be a plumber.” - Albert Einstein
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    "Its a table saw.... Do you know where your fingers are?"
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    • #3
      Re: vertical check valves?

      I was always told You can put a Y style check valve (first picture) in vertically. The standard check valve (second picture) must be put in horizontally.
      Attached Files
      Ron Hasil Lic #058-160417
      A-Archer Sewer & Plumbing specializing in:
      Tankless Water Heaters | Drain and Sewer Cleaning
      Sump and Ejector Pumps | Backflow RPZ Testing

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      • #4
        Re: vertical check valves?

        Originally posted by Bob D. View Post
        A swing check (some designs) will work IF the
        flow is up, but it's still not a good choice.

        I think a spring check would be better.
        Agree 100% and in some circles, these are known as lift check valves.
        Buy cheap, buy twice.

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        • #5
          Re: vertical check valves?

          The swing check will make a little more noise in the verticle as it shuts. You will want some drain valves above the checks if you need to drain the system.

          I find spring checks do not have the same life span as the swing version.

          If you are changing the pumps during this repiping, most of the newer heating pumps are including a check valve built in. It's a big cost and space saver when zoning by pumps.

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          • #6
            Re: vertical check valves?

            What you need is a flow check valve, either vertical or horizontal. They differ from common swing checks in that the check is weighted. Taco 219 being the most common around here. BTW Taco and Grundfos both make circulators with internal check valves.
            sigpic

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            • #7
              Re: vertical check valves?

              I've tried to justify all new circulators, and if this was a "set it and forget it" type of install, I'd be thinking about it. However, an additional $480 puts me over my fun limit. I've talked to the homeowner (me) and told him I can't warranty the parts.

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              • #8
                Re: vertical check valves?

                These are vertical or horizontal, cost about 35 bucks.
                Attached Files
                sigpic

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                • #9
                  Re: vertical check valves?

                  Finally! NH Master is correct.

                  #3 No, those work the same way. Spring check is for vertical but not for controlling flow on heating circs.

                  I would forget the flow control valves and circ pumps and use one circ and zone valves. Use less electricity and cheaper.

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