Primitive med pressure sprinnger

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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metalmeltr
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Posts: 426
Joined: Thu Dec 18, 2008 3:42 pm
Location: united states

The chamber is 6x3/4" the barrel is 1/2x43" these values mean nothing the barrel length is just the piece i had laying around.
The 1/4" ball valve is spring actuated by a coil spring that i had laying around. I just got my fridge compressor setup and i have been shooting at about 300psig, i am limited by only having a 300psi gauge.
One quick question shouldn't a grease gun hose withstand friggy presures, it was rated to 4500psi, but an air bubble got under the outer casing of the hose.

How would i model this 1/4" ball valve in GGDT.
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I used to use this for inflation up to 200psi
I used to use this for inflation up to 200psi
craftsman inflator.jpg (2.08 KiB) Viewed 2336 times
The seal in the origonal airchuck wore out so i cut it off, installed hose barb and put this lock on couplerin place
The seal in the origonal airchuck wore out so i cut it off, installed hose barb and put this lock on couplerin place
Yes i polished the barrel
Yes i polished the barrel
I hold the valve closed with zip ties, when ready to fire i cut them, this is the poistion after firing, the fill valve was made though this procdeure <br />http://www.spudfiles.com/forums/how-to-make-a-threaded-schrader-valve-t19609.html
I hold the valve closed with zip ties, when ready to fire i cut them, this is the poistion after firing, the fill valve was made though this procdeure
http://www.spudfiles.com/forums/how-to-make-a-threaded-schrader-valve-t19609.html
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lemming124
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interesting
doesn't it get annoying having to constantly replace zip ties?
maybe a system similar to the one here would be preferrable http://www.airgununiverse.net/beginner1.html
oh and doesn't the term "springer" refer to airguns that use a spring propelled piston?
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Technician1002
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Joined: Sat Apr 04, 2009 11:10 am

Is there a reason you restricted the size of the air passage from the chamber to the barrel to 1/4 the area? May I recommend using a 1/2 inch or larger ball valve to feed a 1/2 inch barrel?
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metalmeltr
Specialist 4
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Posts: 426
Joined: Thu Dec 18, 2008 3:42 pm
Location: united states

The only reason for the rstrictive valve is that is gun was not origonally intended for high performance, this is an earlier incarnation of it http://www.spudfiles.com/forums/my-air- ... 20662.html
I would like to put a larger valve or a QEV on it but it hasnt happened yet.
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