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Ebay Pneumatic Valves

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Ebay Pneumatic Valves

Unread postAuthor: DerpWithAGun » Mon Aug 22, 2011 7:16 am

Hi guys,

I was on ebay and I found these two pneumatic QEV valves.
http://www.ebay.com.au/itm/Pneumatic-Qu ... 3ca578066a

http://www.ebay.com.au/itm/Pneumatic-Qu ... 3ca1f7c8e2

Which one would hold more pressure. I like the look of the square one.
After I build my Pistol I'm going to make a rifle using one of these valves off the internet. What would be the best approach or best QEV to buy?

All help appreciated!
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Re: Ebay Pneumatic Valves

Unread postAuthor: jackssmirkingrevenge » Mon Aug 22, 2011 7:19 am

DerpWithAGun wrote:Which one would hold more pressure. I like the look of the square one.


The latter should take more pressure before blowing apart but both should be good for 300-400 psi at least.
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Unread postAuthor: DerpWithAGun » Mon Aug 22, 2011 7:23 am

Ok thanks. I was looking on the website there and if you scroll down it states 140 Psi. Is that correct?

EDIT: On a side note, these QEV would get past Australian Customs correct?
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Unread postAuthor: jackssmirkingrevenge » Mon Aug 22, 2011 7:40 am

DerpWithAGun wrote:Ok thanks. I was looking on the website there and if you scroll down it states 140 Psi. Is that correct?


That's the rated pressure but it doesn't mean it will explode at 141 psi, what pressures were you planning on using?

On a side note, these QEV would get past Australian Customs correct?


Nothing illegal about them.
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Unread postAuthor: DerpWithAGun » Mon Aug 22, 2011 8:06 am

Hmm I was planning maximum 300 PSI
I'm glad they aren't illegal. I was thinking of taking the parts i bought for my pistol back to the hardware store and just making a rifle with a changing stock and barrel for pistol and rifle.
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Unread postAuthor: mattyzip77 » Mon Aug 22, 2011 12:15 pm

I like the second choice better, however thats my opinion. I dont care for the square q e v's. To me, they just dont look right for some reason!! :idea:
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Unread postAuthor: sco77 » Wed Aug 24, 2011 1:56 am

I have the 2nd one, also in 1/2 and I made several shots at 300+ PSI... When I took it apart it looked like it is made pretty good.
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Unread postAuthor: jackssmirkingrevenge » Fri Apr 20, 2012 12:10 am

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