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Need some advise

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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Need some advise

Unread postAuthor: cstru18 » Sat Oct 12, 2013 1:49 am

Hey there everyone I'm wanting to build a 1/2 piston valve. But I'm having some trouble on finding a male tee to use. I'm just not sure if I'm supposed to use a 1/2 male compression tee or just a standard tee. Thanks in advanced
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Re: Need some advise

Unread postAuthor: MRR » Sat Oct 12, 2013 2:22 am

1/2" is small to begin with so I would take a "compression tee" if you mean a tee with a smooth inside and outer threads.

edit:
Sorry, I looked up compression tee and I don't think it will fit your needs.
Find a tee with outer threads and a smooth surface inside or a tee with inner threads + 1/2" male to male fittings (smooth surface inside).
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Re: Need some advise

Unread postAuthor: cstru18 » Sat Oct 12, 2013 2:50 am

I just wanted to try make a piston valve like this. resources/image/17438

And I think this is a compression tee use in tho piston valve
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Re: Need some advise

Unread postAuthor: MRR » Sat Oct 12, 2013 3:35 am

Yea, it looks like a compression tee but without the fittings and the brass rings on it.

For comparison, a fully equipped compression tee....
Image

You have to keep in mind that you need a good surface inside the tee to house the piston and enough space for it to move away from the seat.
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Re: Need some advise

Unread postAuthor: Gun Freak » Sat Oct 12, 2013 9:43 pm

It'd probably be easier to just use a female tee and threaded nipples, that way you have long enough travel and guaranteed smoothness.
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Re: Need some advise

Unread postAuthor: jackssmirkingrevenge » Sun Oct 13, 2013 5:07 am

Gun Freak wrote:a female tee and threaded nipples


Awww say that again! :D
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