Boiler Water Feed Check Valve Failure -

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Old 08-04-04, 12:50 PM
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Boiler Water Feed Check Valve Failure -

I have an apartment building.
Last year the city had me install some $100 vented dual check valve that would prevent the boiler water from reversing to the hot water heater. The $3 check valve wasnt good enough. So my tenant called today at 7 AM about a water noise. The valve switched today to send the water out the valve to the drain. My furnace has been off for a month or more as it is summer. I tapped the valve with a hammer a couple times...shut the water on and off a couple times...but had to leave it shut off or it directoly goes down the drain. How does one reset it? And why/how did it fail ? thanks in advance. [email protected]
 

Last edited by sdanville; 08-04-04 at 02:18 PM. Reason: found name for valve
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Old 08-06-04, 04:52 PM
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There is probably a rebuild kit available for the valve. Or you could just disassemble it and clean the parts. It is probably only a piece of dirt causing the problem.

Ken
 
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Old 08-15-04, 06:50 AM
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My Walls dual valve has a torn diaphram

I took it all apart....

$78 valve// lasted a year..shot over a flimsy diaphram.

so far searching the WWW no luck on a diaphram replacement kit.

WATTS 9D 1/2 "
 

Last edited by sdanville; 08-15-04 at 06:47 PM.
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Old 08-15-04, 06:44 PM
Homer Simpson
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Failed Check valve

Well, make and model number would help.

Some jurisdictions require one type of valve others a more complicated
valve. Yours could be a double check w/ atmospheric vent, a reduced
pressure backflow preventer or another. It should have lasted longer,
may have been defective. The warranty on the big named ones is a
year from the date of manufacture not installation. So you always want
to install a fresh one and not one that has been sitting on the shelf for
9 mo. . Contact the manufacturer for a kit. But to replace the kit the
jurisdiction wants it retested if it is the kind that can be. A certified
tester is required. You can check Johnstone or Granger for a new one or
your local plumbing company. I have had several reduced pressure backflow
preventers, which is required in my county, leak out of the port and I don't mess with them, I take it back and get a new one that doesn't leak. Sorry,
but I see anything that specifically created this other than a manufacturing
defect. Say goodbye, Homer. Goodbye
 
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Old 08-15-04, 06:51 PM
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makes since what you said.

thanks...

UPDATE --- GOOD OL EBAY> I BOUGHT TWO yes TWO valves for $40.00

about 20% of retail.
 

Last edited by sdanville; 10-05-04 at 02:53 PM. Reason: add price
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