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openable piston/tee

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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openable piston/tee

Unread postAuthor: FishBoy » Sun Jun 29, 2008 12:35 pm

Ok, I have noticed how many piston housings (tees) have the bushings for the pilot screwed in. My question was, is this done instead of cement so you can open the housing to repair/examine the piston? If it isn't, what is the best way to make detachable bushing/coupler in order to replace a piston if necessary.
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Unread postAuthor: pizlo » Sun Jun 29, 2008 12:45 pm

Yes, There is an O=ring on the bushing that makes a seal, and bolts that hold it in. This lets the piston be serviceable. That or threaded fittings.
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Unread postAuthor: FishBoy » Sun Jun 29, 2008 12:49 pm

wait, you need an o-ring on the bushing?
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Unread postAuthor: hi » Sun Jun 29, 2008 12:50 pm

the way i do it is i just attach a female threaded adaptor and use a plug to seal it. that way i can service the piston if needed. i dont use the o ring/screw method because i dont have the proper tools and if i did it by hand it would take longer than i would want it to.
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Unread postAuthor: pizlo » Sun Jun 29, 2008 1:14 pm

FishBoy wrote:wait, you need an o-ring on the bushing?

To do the bolt on method, yes.
I would recommend the above procedure as well.
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Unread postAuthor: FishBoy » Sun Jun 29, 2008 1:41 pm

my question is, do male/female connections seal?
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Unread postAuthor: MrCrowley » Sun Jun 29, 2008 2:10 pm

Like threaded adapters? Then yes they do.
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Unread postAuthor: psycix » Mon Jun 30, 2008 4:53 pm

And if you were going to use couplings that were to be glued, but then held with bolts instead, you will need an o-ring to seal it off.
OR glue it, but then your piston isn't serviceable.
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