hello
i am making an pneumatic rifle with a qev valve but i need it to be 1/2 at most is it posible to make it that small??
Posted: Fri Jul 08, 2011 5:55 pm
by ramses
You can buy QEV's from 3/4" all the way down to 8-32 threads, and possibly smaller. What is the diameter of the bore of your rifle?
Posted: Fri Jul 08, 2011 6:25 pm
by destronx
So what I want to do is this
SPEC:
-1/2 cooper pipe(as cannon)
-QEV
-quick change adapter as tank it is so that is uses cO2 canisters
-1/2 blowgun
- and the rest needed to put it together(nipples and other crap)
If you want a 1/2" copper barrel, no. That valve won't provide enough flow. I suggest you brows the wiki for more information regarding valves and how to size them. For the record, people tend to get angry at new members for asking simple questions, or for not searching/researching first.
Posted: Fri Jul 08, 2011 10:12 pm
by destronx
ok so is this one better i research and found this onehttp://cgi.ebay.com/Pneumatic-Quick-Exhaust-Valve-1-4-NPT-Ports-Aluminum-/260415393436?pt=Pneumatic_Hydraulic_Valves_Parts&hash=item3ca1f78e9c
but i still don't know if it will support the pressure of the co2 canister
The specs say 140 psi but you could probably take it too 500 psi or so without failure. Still, CO<sub>2</sub> vapour pressure is 800-1000 psi, what exactly are you planning to fill it with?
Posted: Sat Jul 09, 2011 7:45 am
by wyz2285
Have you thought about making one? I have made my and it works very well
Here is the video [youtube][/youtube]
wyz2285 wrote:Have you thought about making one? I have made my and it works very well
Here is the video [youtube][/youtube]
yes i had tried to do one but it was a failure i also saw ur video but i havent try it...
but when i found this i thing is perfect because it is as samll as i wanted so that it can fit in the stock i am making for the rifle
