check valve

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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Major Collins
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http://www.ebay.com.au/itm/Non-Return-V ... 672wt_1110

does anyone know roughly the least amount of psi generated to push the valve or open up the valve?

and what psi are they rated too? i saw one on someone else's stirrup at 700 psi
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Crna Legija
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ask the seller not us!
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I've had the exact same type of valve and I can tell you they're pretty bad... the piston is sloppy in the brass guides so it tends to miss the seat and leak. Maybe this is not the same manufacturer but still... it has a plastic piston and a seat over .748". Using this on a pump for 700 psi is just asking for trouble IMHO.

Perhaps the person in question just used this valve as a housing for a check valve with a much smaller seat.
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Crna Legija wrote:ask the seller not us!
Good answer! :)
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Technician1002
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Check valves for hydraulic systems or a power washer may be a better match.
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