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High Pressure - Low Volume Chamber?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: clemsonguy1125 » Wed Sep 22, 2010 6:16 pm

Give some to me, lol
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Unread postAuthor: Gaderelguitarist » Wed Sep 22, 2010 7:02 pm

Make a pair of pneumatic gauntlets that fire small darts when you punch out.
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Unread postAuthor: Gun Freak » Wed Sep 22, 2010 7:15 pm

Holy mother of god dude, how the hell do 10 qev's just show up like that? I think you're pulling out legs :P You had a spare 1/4" QEV? Dang, I wish I had spare parts like that lol
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Unread postAuthor: BeaverRat » Wed Sep 22, 2010 7:17 pm

I'm thinking about using 4 valves in parralel to make a high pressure golf ball cannon. 4 of these 3/4" QEV should have slightly more circular area than a single 1.5" valve. I will than pilot all four with one more 3/4" QEV. Would this be effective?

EDIT: I'm not pulling any legs, I'm just as surprised as you guys. I ordered 1 of these valves a week ago, and it came yesterday. Strangely, another 10 came today crammed into one tiny box!
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Last edited by BeaverRat on Wed Sep 22, 2010 7:19 pm, edited 1 time in total.
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Unread postAuthor: Gun Freak » Wed Sep 22, 2010 7:18 pm

How are you going to connect them to the barrel? The area may be the same but the flow won't be nearly as good as one port.
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Unread postAuthor: BeaverRat » Wed Sep 22, 2010 7:20 pm

Gun Freak wrote:How are you going to connect them to the barrel? The area may be the same but the flow won't be nearly as good as one port.


Well, than I will use 6 in parallel and still have 3 to spare :D
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Last edited by BeaverRat on Wed Sep 22, 2010 7:25 pm, edited 2 times in total.
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Unread postAuthor: Gun Freak » Wed Sep 22, 2010 7:21 pm

Still how will you connect them to the barrel?
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Unread postAuthor: BeaverRat » Wed Sep 22, 2010 7:25 pm

To connect them to the barrel, I will use 2 tees that have 2 3/4" ports with 1 1.5" port, and than a 1.5" tee.

I will actually have to do that twice if I want to have a single chamber...
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Unread postAuthor: Gun Freak » Wed Sep 22, 2010 7:46 pm

Ok but then there is dead space and a lot of turbulence in flow through those tees.
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Unread postAuthor: BeaverRat » Wed Sep 22, 2010 7:50 pm

That is true... but how else would it be done?
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Unread postAuthor: Gun Freak » Wed Sep 22, 2010 7:51 pm

Uhhh... not using a QEV :tongue3:
Just make an arsenal of different types of QEV guns. :D
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Unread postAuthor: BeaverRat » Wed Sep 22, 2010 8:00 pm

But I allready have a 3/4" QEV cannon with a 3/4" barrel... What else could I do with a single QEV? It would be pointless to waste that size on a smaller barrel, and it would lose performace to give it a bigger barrel. Nope, I'm gonna make a Quad or Hex QEV cannon (should be a first). It might take a while, but I will post it in the showcase when it's done.
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Unread postAuthor: Gun Freak » Wed Sep 22, 2010 8:04 pm

Shouldn't take too long, you already have the valves made :P
Good luck, it shall be quite a creation...
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Unread postAuthor: BeaverRat » Wed Sep 22, 2010 8:10 pm

Yep, the hard part will be to eliminate as many bottle necks as possible, while keeping dead space to a minimum. Lots of reducing tees and such.
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Unread postAuthor: Lockednloaded » Wed Sep 22, 2010 8:25 pm

Make a chamber side filling QEV semi, Use a QEV to pilot a large valve, Make a 3-barreled 3 Valved QEV gun, Make a full-auto QEV+pop-off, make a semi auto QEV+DCV, make a piston QEV hybrid. and send the excess to me :lol:
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