What pressure for air testing copper?

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Seaneys

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Hello,

I'd like to pressure test my vertical spa installation (lots of fittings). It has held 40 PSI for 4 hours.

What is the recommended air pressure and set time for air testing copper? The valves are installed. I did not want to risk over pressurizing the valves.

Thanks,
Steve
 

hj

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test

The valves are rated for 150 psi working pressure and no common compressor is allowed to exceed about 125 psi, so you couldn't damage the valves.
 
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