what is Cv ? is it amount of air that can pass for a second, than McMaster have one with 7.84Cv , it mean 6646K23 is better than this one

thanks

Does QEV shut after trigger shut ( in case of multiple shoots) or it release all air in tank ?
And can I use hose to connect trigger or hose will explode in hight pressure as 100 psi

Hi . Im building my second pneumatic rifle and thought of using QEV for it, but i found something what sound much better Super Quick Exhaust Valve ! :) Super Quick Exhaust Valve But I have no idea how it different from QEV and truly I don't know much about QEV ether. Can someone please explain to ne...