My QEV copper cannon

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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chaos
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spudthug wrote:wow...and there is no way u tested it at 320 psi..that qev would have gone at 200..its rated to probably 145-160

ur gun is awesome..those compression fittings are pimp!!
agreed with the above. (edit: last post on the previous page**)

perhaps make a piston valve :idea: :?: :?:
spanerman
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sorry for the misunderstanding but the pilot arangment was tested to 300psi... i have tested the QEV to 200psi with no problem, it is a piston style QEV so no bursting diaphagms. ive got some of bushings and a coupler so its all build up and its much easyer to use than a ball valve.
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Hotwired
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spudthug wrote:wow...and there is no way u tested it at 320 psi..that qev would have gone at 200..its rated to probably 145-160
I've been wandering around here using my cannon at 240psi for some time, the QEV's are rated to 300psi.

The QEV wasn't connected in the pilot pressure test anyway.
spanerman
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i think you will find the QEV's are rated to 10bar....147psi
http://www.airlines-pneumatics.co.uk/we ... de=S070139
leeeeshad
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different places say different ratings, i think airlines just say that as that's what their other stuff is rated to
chubster wrote:how do you saw the head off the nail?
spanerman
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well seing as that where we all baught them from...
spanerman
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hmm.

i overtighend my blow and it cracked :( off to ebay to buy a replacement!
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Hotwired
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....

Don't tighten it any further with a tool than you could tighten it by hand without the tape on.
spanerman
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i was useing hydraulic thread sealent and i was hand tightening..... damn monkey metal
spanerman
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more pics
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what do you think?
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spanerman
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well my pilot arrangement is complete!!!! and the cannon is due for a breach-loader and suppressor. yay.
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i solderd the main tube from a schrader valve into a 15mm blanking cap:) it looks good and has held 350psi:)
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ShowNoMercy
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Nice gun, maybe a paintjob and clean it up a bit?
Jesus saves, no need to pray
The gates of pearl have turned to gold
It seems you've lost your way
spanerman
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well its getting breach loader and suppressor soon, and id never paint the copper, you cant see it in the photos but when polished is the sex!!!
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