22mm Low Pressure Non Return Compression Valve Required


Postby garfield59 » Sat Apr 09, 2016 2:03 pm

I am trying to locate a 22mm compression fit non-return valve that will open with gravity/tank feed rather than mains. No-one in my local builder's merchants knew there was such a thing and if I look online, the working pressure never seems to be specified.
Any suggestions welcome!

Many thanks,
Garfield
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Postby lets have a look » Sun Apr 10, 2016 6:53 am

your post isn't very clear "gravity/tank feed rather than mains" ????
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Postby garfield59 » Mon Apr 11, 2016 6:37 am

lets have a look wrote:your post isn't very clear "gravity/tank feed rather than mains" ????


Thanks for the reply.

Sorry I wasn't very clear with my explanation. The valve will be going into the hot water supply to a shower and the hot water is a gravity feed from a tank. I'm told a lot of NRV's require mains pressure to open and so wouldn't be suitable. Does that make more sense?

Many thanks
Garfield
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Postby lets have a look » Mon Apr 11, 2016 2:06 pm

yes it does,the only place I know that sells them are arrow valves they're called SPED Check Valve and Connector
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Postby garfield59 » Mon Apr 11, 2016 10:27 pm

Thanks very much, I'll give them a try. Will let you know how I get on.

Garfield
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