SpudFiles

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 newbie which should i use QEV from McMaster
or Super Quick Exhaust Valve.

The second question is how do you connect metal 3/4 QEV to PVC without leaking.

Yes thoes are common. I have a couple, the only differance is the name, they do the same thing.

Use teflon tape on the treads when you screw on the pipe.

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

You can get hose that holds 1000 psi so yes you can use hose and it will stay open until the pressure is gone.

Thats nice that they actually listed the CV value for the valve. And I like that it is rated to 150 psi. I might get one.
<a href="http://airinc.thomasnet.com/item/specia ... =110">This one</a> has a much better CV value for only a little more money.

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

basically the higher the cv the better it will be thats all you need to know.

yeah, those ones from mcmaster are also a lot cheaper than those ones and are made from the same manufacturer. I bought a butt load of them