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C19O's First Barrel Sealing Valve in a Tee - 1.5" Porti

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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C19O's First Barrel Sealing Valve in a Tee - 1.5" Porti

Unread postAuthor: c19o » Tue Mar 27, 2007 11:21 pm

Here's my First Barrel Sealing Valve in a Tee. Its got 1.5" porting and o-rings on the piston. I didn't use a lathe for the o-rings :P
I'll soon put up a video of it firing golfballs.

Just the valve
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Valve with connections
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The piston
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O-ring Grooves
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Piston
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Lookin in exhaust port
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If you want to see more pics of this valve and my other spud gun stuff go look at my album here. http://s179.photobucket.com/albums/w303/c19ospudfiles/
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Last edited by c19o on Wed Mar 28, 2007 8:24 pm, edited 2 times in total.
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Unread postAuthor: Kobl » Wed Mar 28, 2007 1:37 pm

Can you please elaborate on how you made the grooves? Other than that, great work!

-Butt
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Unread postAuthor: c19o » Wed Mar 28, 2007 7:00 pm

Update: Today I tested the valve with a 2" chamber 5 feet long with a 4.5 foot golfball barrel and got hang times of 18 seconds at 95 psi!
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Last edited by c19o on Thu Mar 29, 2007 12:39 pm, edited 1 time in total.
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Unread postAuthor: A-98 » Wed Mar 28, 2007 7:35 pm

very nice. im debating making one similar for my friend, but hes funding it and wants it to be cheaper. so im going to go with a sprinkler

very nice job, and i love the ghetto lathe :D
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Unread postAuthor: c19o » Wed Mar 28, 2007 7:59 pm

Thanks. Your sig made me crack up
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Unread postAuthor: frankrede » Wed Mar 28, 2007 9:50 pm

I like your piston.
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Unread postAuthor: schmanman » Thu Mar 29, 2007 5:26 am

very nice!

the piston looks really nice, those grooves look like they were done with a lathe!
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Unread postAuthor: c19o » Fri Mar 30, 2007 9:10 pm

Well I got a new chamber (6.5ft long, 2") and golfball barrel (10ft long), and my last chamber the flow was constricted. I got hang times of around 21 seconds. ~95psi. Now just to take a video.
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Unread postAuthor: explsvcookie257 » Wed Oct 17, 2007 9:03 pm

very nice valve i like it

What did u make the piston out of im having trouble trying to figure out a way to make a piston in a 3 inch tee so i might use a desighn similar to yours but i will try my original which has a 2" coupler with an end cap epoxied to it with a rubber gasket glued to it sliding over a piece of 2 inch pipe i am very smart is what people say but i think i am stupid because i ask the dumbest questions and have trouble figuring out the most simplest things like this haha :oops: :P
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Unread postAuthor: dapallox1 » Wed Oct 17, 2007 9:24 pm

how do you get the piston out if any repairs are needed?
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Unread postAuthor: noname » Wed Oct 17, 2007 9:26 pm

There's a female adapter and plug in the back of the T. To service the piston, he can simply unscrew the back and take the piston out.
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Unread postAuthor: dapallox1 » Wed Oct 17, 2007 9:43 pm

but wouldn't the 3" pvc connecting the female adapter to the tee stop the piston from coming out?
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Unread postAuthor: noname » Wed Oct 17, 2007 9:49 pm

First of all, it's a 2" T, and there is PVC glued into the back of it. The piston is made to slide inside the short section of PVC pipe.
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Unread postAuthor: dapallox1 » Wed Oct 17, 2007 9:59 pm

Oh! Okay, I think I get it now. Thanks! :) Oh, and I meant 2".
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