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Super Quick Exhaust Valve

A place to ask general spud cannon related questions.
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Super Quick Exhaust Valve

Unread postAuthor: therian » Sun Dec 31, 2006 11:47 pm

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.
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Unread postAuthor: SpudStuff » Mon Jan 01, 2007 1:12 am

Yes thoes are common. I have a couple, the only differance is the name, they do the same thing.
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Unread postAuthor: ProfessorAmadeus » Mon Jan 01, 2007 1:20 am

Use teflon tape on the treads when you screw on the pipe.
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Unread postAuthor: therian » Mon Jan 01, 2007 1:47 am

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
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Unread postAuthor: Bluetooth » Mon Jan 01, 2007 10:53 am

You can get hose that holds 1000 psi so yes you can use hose and it will stay open until the pressure is gone.
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Unread postAuthor: benstern » Mon Jan 01, 2007 1:13 pm

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/specialty-valves-acc-/pneutrol-quick-exhaust-valves/ev35a2?&seo=110">This one</a> has a much better CV value for only a little more money.
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Unread postAuthor: therian » Mon Jan 01, 2007 2:07 pm

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
:?:
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Unread postAuthor: MisterSteve124 » Tue Jan 02, 2007 9:19 pm

basically the higher the cv the better it will be thats all you need to know.
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Unread postAuthor: nicholai » Tue Jan 02, 2007 9:32 pm

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 :)
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