Help with a QEV

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
PotatoEnemy17
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Mon Aug 13, 2012 6:24 pm

Your pilot valve is bigger than the valve itself :?
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AircannonSweden
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Mon Aug 13, 2012 6:27 pm

PotatoEnemy17 wrote:Your pilot valve is bigger than the valve itself :?
Yeah,I know ;) i have fixed a thing so the piston dosen't fly out when I fire it :)
As always,have a nice day - FPSrussia
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AircannonSweden
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Tue Aug 14, 2012 3:55 pm

Here is a test-shoot

[youtube][/youtube]
Last edited by jrrdw on Thu Dec 08, 2016 2:19 pm, edited 1 time in total.
Reason: Embedded video.
As always,have a nice day - FPSrussia
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MCRKilljoy
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Thu Dec 08, 2016 11:36 am

Just buy one. It is about $20 for a good high flow QEV (piston type). Just search on eBay or Amazon. A ball valve is a good pilot valve. It is easy to find and it has high flow, which allows for high power. Use a 1/4 inch or 1/2 inch valve.
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jrrdw
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Thu Dec 08, 2016 2:23 pm

For some reason people want to build these lately. Looking for better flow perhaps....
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