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high pressure qev

A place to ask general spud cannon related questions.
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high pressure qev

Unread postAuthor: Benny » Wed Apr 19, 2006 11:39 pm

hello, some of you might know me from air power.net, anyway i just bought a qev off mc master carr and then bothered to read the description
it was rated to 477 psi! now i dont know what the hell to do with it, i was thinking i should solder a copper cannon together and use the high pressure ability, any suggestions? :? heres the link: oh wait never mind, just search for'quick exhaust valve' and click on exhaust control valves. by the way i do not consider myself a noob i have made lots of cannons. :wink:
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Unread postAuthor: beebs111 » Thu Apr 20, 2006 4:30 pm

you should give us the link, im not finding anything rated for more than 150 psi
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Unread postAuthor: saladtossser » Thu Apr 20, 2006 5:10 pm

ggod for you benny, if you can pump something up to 400psi go for it

can you tell us the part number?
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Unread postAuthor: Benny » Thu Apr 20, 2006 7:08 pm

part number: 6646k23
oh also i cant directly link to the page with the valve on mc master because even when your on the page with the valve it still sais mc master.com it doesnt say like http://www.mcmaster.com/valves
that was hard to explain.
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Unread postAuthor: Brian the brain » Thu Apr 20, 2006 11:16 pm

It doesn't say it's rated to 477 psi ?!?!
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Unread postAuthor: spudshot » Fri Apr 21, 2006 2:11 pm

i bought the same valve before and it was only rated to 125
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Unread postAuthor: beebs111 » Fri Apr 21, 2006 4:17 pm

3/4" NPT 3/4" NPT 3/4" NPT 7.84 477 6646K23 20.10 the red is where it says 477 it actually says Max.scfm@100psi=477 what that means is beoynd me
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Unread postAuthor: saladtossser » Fri Apr 21, 2006 5:25 pm

thats the flow rate! 477 cubic foot per minute?
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Unread postAuthor: Benny » Sat Apr 22, 2006 2:37 am

oh, ok. :oops:
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Re: high pressure qev

Unread postAuthor: steel » Mon Jun 06, 2016 2:02 pm

hi guys i'm new here...i always wanted to fond out if there are QEVs that go over the limit of 150 psi and so on, i found this site called sigma valve, and they have QEVs that reaches 6000 psi...i saw they have one that can handle 400 psi also, just what i need...i will send you a link,please check it out and let me know if it's a good deal...

hi it's me again...this is the link for high pressure QEVs...please check it out and let me know what you guys think...http://www.sigma-valves.com/
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Last edited by jrrdw on Sun Oct 02, 2016 7:58 am, edited 1 time in total.
Reason: Double post.

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Re: high pressure qev

Unread postAuthor: matti » Fri Jun 10, 2016 1:18 am

steel wrote:hi it's me again...this is the link for high pressure QEVs...please check it out and let me know what you guys think...http://www.sigma-valves.com/


But why did you post your question to thread that is 10 years old one..
Valve probably is ok, but I think it will cost very much if you buy a new one. Some people here have used standard qevs up to 400psi with no problems, but depends on the exact model and size.
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