250psi

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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roughboy
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I want to make a metal cannon using 250psi but what kind of valve should i use that can handle 250psi?-----THANX
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MrCrowley
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home made piston,you would have to make it uber strong though.
im pretty sure QEVs can handle 250psi,they might do but i cant tell as i havnt used one.
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carlbelcher
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Some QEVs (quick exhaust valves) are rated to 250 psi but most are only rated to 125-175 psi.
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