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Relief out of Check Valve Body...

Relief out of Check Valve Body...

Relief out of Check Valve Body...

(OP)
I'm not sure what the rules say about double posting, so I'm posting this link to a post I'm getting no nibbles on in the Valve Engineering section... Link .
It is about a Relief Valve threaded into the body of a Check Valve.

Anyone have any experience/knowledge to share?

Thanks,
David

RE: Relief out of Check Valve Body...

I think you are describing a load holding valve. If this is a critical application look at Sun Valves. They have just what you need already designed and available.

RE: Relief out of Check Valve Body...

(OP)
Sorry, not clear enough here without going into the other thread...
This is a 3"Ø swing check valve with a ½"x1" relief valve that appears to be mounted into the check via a threaded boss on the check valve body. I can't see much due to insulation. This is carrying -28°F liquid ammonia.

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