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QEV Troubles

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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QEV Troubles

Unread postAuthor: Carlman » Thu May 01, 2008 5:30 am

right got myself a QEV...how the bloody hell do i use it? lol

i thought i knew, obviously not. Help a guy out?

here are some pics:

Image

Image
Says 'IN'

Image
says: 'EXH' and below it says 'OUT'

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where do you fill from? and does it have to be a quick burst of air to seal it?
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Unread postAuthor: MrCrowley » Thu May 01, 2008 5:41 am

IIRC, 'IN' is chamber and 'EXH' is pilot. The other, barrel.

I forgot, but that just seems like the logical way to me :P
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Unread postAuthor: mark.f » Thu May 01, 2008 5:55 am

Actually, on all the Q.E.V.'s I've played with, EXH is what you hook to the barrel (it's what the cylinder exhausts to).

So, try this: hook the EXH to your barrel, the IN to your fill and pilot setup, and your OUT to your chamber.

Q.E.V.'s can be confusing, but all you have to do is just remember what they're originally used for: exhausting pneumatic cylinders.
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Unread postAuthor: MrCrowley » Thu May 01, 2008 6:12 am

I stand corrected, as I said I can't remember. When installing mine I just looked at how everyone else did theirs :)

BTW, how much did you pay for it, and what size? I think I know where you got it from.
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Unread postAuthor: POLAND_SPUD » Thu May 01, 2008 6:57 am

yeah markfh11q is right...

no you don't need a quick burst of air to seal it...
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Unread postAuthor: psycix » Thu May 01, 2008 8:27 am

Think logically:
The port on the side is probably the chamber (like a piston T-valve)
Then for the two inline ports: one of is tagged "in", wich will probably be the pilot/fill (duh) and then there is only one port left, wich is the.....?

Barrel yeah!
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Unread postAuthor: hi » Thu May 01, 2008 8:31 am

with mine i had to change the combination about 3 times before i got it right.
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Unread postAuthor: psycix » Thu May 01, 2008 9:01 am

hi wrote:with mine i had to change the combination about 3 times before i got it right.


Doesnt surprise me if you do it at random.
There are 6 combos possible :D
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Unread postAuthor: Carlman » Thu May 01, 2008 9:23 am

MrCrowley wrote:I stand corrected, as I said I can't remember. When installing mine I just looked at how everyone else did theirs :)

BTW, how much did you pay for it, and what size? I think I know where you got it from.


got it from SMC Pnuematics in Belmont, for 55$ :shock:



thanks mark and everyone else ill try it and report back :D
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Unread postAuthor: SpudFarm » Thu May 01, 2008 10:57 am

WoW on my local store i get a 1/2" QEV for $28

when you posted this you make me want to make a 300psi mini QEV gun with bb barrel.
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Unread postAuthor: Carlman » Thu May 01, 2008 11:02 am

spudfarm wrote:when you posted this you make me want to make a 300psi mini QEV gun with bb barrel.


not before i post mine :wink:
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Unread postAuthor: SpudFarm » Thu May 01, 2008 11:08 am

haha:P i have a burning pocket with my hybrid so it would be after the big hybrid and the smallest hybrid.

mabe this week also if i can talk around the friend i have in the shop on the QEV store, and i can get those pipes for free.
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Unread postAuthor: Carlman » Thu May 01, 2008 11:32 am

yea im thinking of maiking one onto a real rifle stock or homemade outa pine, 1m 5mm brass barrel, screw off breach, 1/4" BV pilot, 3- 9 x scope, bipod so on and so fourth lol
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Unread postAuthor: SpudFarm » Thu May 01, 2008 11:38 am

haha i got an old airgun stock behind me right now :P
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Unread postAuthor: Carlman » Thu May 01, 2008 12:02 pm

damn uuu, im prob gonna make mine as i dont feel like shelling out 200 for a new one...
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