Super Quick Exhaust Valve

[therian]

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.

[SpudStuff]

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

[ProfessorAmadeus]

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

[therian]

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

[Bluetooth]

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

[benstern]

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.

[therian]

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

[MisterSteve124]

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

[nicholai]

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