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Testing Piston Valve with Co2

Posted: Thu Feb 28, 2008 12:04 pm
by Jared Haehnel
OK so I'm geting ready to test my first piston valve... basically I've got it set up in a "mock" spud gun... the tee valve has a small 4x6" chamber that is capped on one end but has a valve and a PSI guage attached.
Its set up the same way I would set up it up in the real thing just smaller with a small barrel attached to reflect the chamber...

Heres my question... I've these tanks of Co2 left over from my paintballing days and they are full. I would rather use them an be indoors to test this bugger then have to be out side in the cold with the wind running a small compressor to test it.

I haven't played around to much with it yet but I was woundering if it would affect my test results any... and what threads are a standerd paint ball Co2 tank so I can rig somehting up. I'm assuming its NPT but it never hurts to double check.

I'm testing to make sure it moves back and forth find and the piston rings seal... that the pilot vlave is big enough...ectra...ectra... and if I get around to it I'll be testing a few different designs to see what gives the best results.

Posted: Thu Feb 28, 2008 4:28 pm
by Brian the brain
Unregulated CO2 will blow your precious pistol valve to shreds. :shock:

I know wich threads are on PB tanks, but for safety reasons I will not help you try this. :?
Trust me, I have been seriously hurt by a metal stirrup pump failing at 80 bar ( 1200 psi?) when it shouldn't.

Sorry.. :oops:

Better get out the compressor

Posted: Thu Feb 28, 2008 5:05 pm
by SpudFarm
brian you can tell him after he has posted a picture of his safety release valve ! (get one)

Posted: Thu Feb 28, 2008 5:06 pm
by tomthebomb137
Brians got it, i use all my paintball stuff for my cannons, and sometimes my cannons for paintball :D but i use my 4500psi compressed air tank, which unlike CO2, does not get extremley cold as it expands like CO2 does, so the only cannon i used with CO2 is a galv. steel mortar with a metal ball valve, but bassically what im saying is unless your stash of paintball equipment includes a comp. air tank, put on a nice jacket and use the compressor

Posted: Thu Feb 28, 2008 7:38 pm
by daberno123
If you really wanted to use your paintball tanks you would probably have to use some some of low pressure stabilizer like this but just to test a piston valve out you would just need a standard compressor.

Posted: Fri Feb 29, 2008 7:36 am
by Jared Haehnel
Good thing I asked first...might as well just suit up or wait till spring... may be I'll just check it with a bicycle pump...

Posted: Fri Feb 29, 2008 3:32 pm
by tomthebomb137
congrads spudders, we just saved another piston vavle :D but good luck jared

Posted: Fri Feb 29, 2008 3:36 pm
by Jared Haehnel
..... :D .....

Posted: Fri Feb 29, 2008 3:41 pm
by brother361
:D :D :D :D :D :D :D :D :D :D :D YEA!!!!!!!!!!!!!!!!!!!!!!