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Something to use as a air tank?

Posted: Sat Aug 06, 2011 8:51 am
by jmez1996
Anybody have a idea of something i could use as a miniture air tank to use as a source for the air on a semi-auto. something that i could mount into the stock on the gun etc.

i was thinking something like a miniture propane tank but you can only buy them full and they cost like $30.

i was going to use some tubing (11mm diameter) below the barrel but it doesnt hold enough air for more than like 2-3 acceptable shots and takes up a lot of space

suggestions?

Posted: Sat Aug 06, 2011 9:25 am
by Gun Freak
Co2 cartridges?

Re: Something to use as a air tank?

Posted: Sat Aug 06, 2011 9:28 am
by Crna Legija
jmez1996 wrote:Anybody have a idea of something i could use as a miniture air tank to use as a source for the air on a semi-auto. something that i could mount into the stock on the gun etc.

i was thinking something like a miniture propane tank but you can only buy them full and they cost like $30.

i was going to use some tubing (11mm diameter) below the barrel but it doesnt hold enough air for more than like 2-3 acceptable shots and takes up a lot of space

suggestions?

what pressure are you going to use it at? and what valve are you using?

Posted: Sat Aug 06, 2011 9:50 am
by warhead052
If its going on a qev, just use a close nipple, and a end cap. Its a tiny air chamber and fills easily.

Posted: Sat Aug 06, 2011 10:42 am
by jsefcik
pvc pipe works really, well i know of many people that have used it :D :D :D :D :D :D :D :D :D :D :D :D :D :D

Posted: Sat Aug 06, 2011 10:49 am
by Goats spudz
hambleton bard co2 cylinder for beer brewing im using one you have to drill out the valve or remove it with a wrench but its hard, MAKE SURE ITS EMPTY FIRST OR YOU WILL DIE!!!!! Image

Re: Something to use as a air tank?

Posted: Sat Aug 06, 2011 2:04 pm
by saefroch
jmez1996 wrote:Anybody have a idea of something i could use as a miniture air tank to use as a source for the air on a semi-auto. something that i could mount into the stock on the gun etc.

i was thinking something like a miniture propane tank but you can only buy them full and they cost like $30.
Any old pipe fittings will work. What's the max operating pressure?

Posted: Sat Aug 06, 2011 5:13 pm
by mattyzip77
jsefcik wrote:pvc pipe works really, well i know of many people that have used it :D :D :D :D :D :D :D :D :D :D :D :D :D :D
Yes it does, but did you see the part where he said that he wanted to keep it SMALL!!!

Posted: Sat Aug 06, 2011 6:48 pm
by jsefcik
mattyzip77 wrote:
jsefcik wrote:pvc pipe works really, well i know of many people that have used it :D :D :D :D :D :D :D :D :D :D :D :D :D :D
Yes it does, but did you see the part where he said that he wanted to keep it SMALL!!!
1/2 inch pvc

Posted: Sat Aug 06, 2011 7:23 pm
by warhead052
jsefcik wrote:
mattyzip77 wrote:
jsefcik wrote:pvc pipe works really, well i know of many people that have used it :D :D :D :D :D :D :D :D :D :D :D :D :D :D
Yes it does, but did you see the part where he said that he wanted to keep it SMALL!!!
1/2 inch pvc
Pvc can't be used in everything. We don't even know the pressure this guy wants to use it at. Would you feel safe using 500 psi in 2" pvc?

Posted: Sun Aug 07, 2011 1:45 am
by jmez1996
yeh so im thinking max operating pressure around 250psi? its the main air source to fill a smaller tank so it has to hold enough air for multiple shots (preferably 5+ decent shots)
i was thinking something like this:
http://wolfstone.halloweenhost.com/Hall ... eTanks.jpg (the one in the middle)

Posted: Sun Aug 07, 2011 2:22 am
by Crna Legija
jmez1996 wrote:yeh so im thinking max operating pressure around 250psi? its the main air source to fill a smaller tank so it has to hold enough air for multiple shots (preferably 5+ decent shots)
i was thinking something like this:
http://wolfstone.halloweenhost.com/Hall ... eTanks.jpg (the one in the middle)
more info needed, what valve and have cal?

so your looking for a main take to fill a smaller firing tank, how big is the firing tank? if you can id say up the pressure to 3-400psi and use a reg to drop it down.

Posted: Sun Aug 07, 2011 3:02 am
by jmez1996
uh im using a 1/4 qev and the firing tank will be some 11mm diameter tubing around 15cm long. but i can change this if its too big/small
the barrel is 6.5mm diameter

what kind of regulator to use coz im planning on keeping the gun looking as much as i can like a proper rifle

cheers

Posted: Sun Aug 07, 2011 8:35 am
by warhead052
I would simply use a small firing chamber, just a 1/4" close nipple with an end cap, and then a 3way valve.

Posted: Sun Aug 07, 2011 9:32 am
by jmez1996
would that hold enough air for a decent shot?
although it would mean i could use a smaller air source tank.