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by lonniev
Tue Oct 29, 2013 7:03 pm
Forum: Pneumatic Cannons
Topic: Piston Valves Explained Visually
Replies: 177
Views: 133243

Re: Piston Valves Explained Visually

The closed-cell foam used as a sealer on the inside and the outside of my piston valve cup compresses nicely to form a seal but it is a little fragile and gets torn by the air pressure. I am wondering what PSI is adequate to begin to experience the impulse effect: where the cup slides back and the p...