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tap my air 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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tap my air chamber

Unread postAuthor: roughboy » Thu Dec 21, 2006 7:11 pm

I already tap my chamber so what next? do i take my pressue gauge and just fit it into the taped hole or is there some kind of npt adapter or something like that, that i sould put into the hole then the pressure gauge goes in after.by the way my pressure gauge is 1/4''npt. thankx!!!
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Unread postAuthor: mark.f » Thu Dec 21, 2006 7:18 pm

What size did you tap the hole?
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Unread postAuthor: roughboy » Thu Dec 21, 2006 7:38 pm

I used a 1/4 tap
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Unread postAuthor: MisterSteve124 » Thu Dec 21, 2006 7:59 pm

then you just use a pressure gauge with 1/4 NPT threads and put teflon tape on it and screw it in tight.
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Unread postAuthor: frankrede » Thu Dec 21, 2006 9:07 pm

Is it a 1/4 npt tap?
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Unread postAuthor: roughboy » Thu Dec 21, 2006 9:47 pm

yes, it is a 1/4 npt tap
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Unread postAuthor: MisterSteve124 » Thu Dec 21, 2006 9:50 pm

Just do what I said screw in a pressure gauge that has a male 1/4NPT theads into it but put teflon tape on it first.
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Unread postAuthor: Flying_Salt » Thu Dec 21, 2006 9:52 pm

MisterSteve124 wrote:then you just use a pressure gauge with 1/4 NPT threads and put teflon tape on it and screw it in tight.


Is teflon tape neccesary (for a schader valve)? If so, where would I get it? One last question: What size hole should I drill for a schader valve (I am planning to tap the hole with the valve.)
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Unread postAuthor: squeaks » Thu Dec 21, 2006 10:03 pm

Ok, what the flip! How have you been on spudfiles so long and not found out how to drill and tap holes!!!! All you do is get a hole drilled to the size your tap says and then tap it, take the tap out, teflon(which you get from your local plumbing/home improvement/home depot store) the bit up, and screw it in!!!!! IT IS NOT ROCKET SCIENCE!!!!!
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Unread postAuthor: MisterSteve124 » Thu Dec 21, 2006 10:10 pm

o shut up squeaks. Flying Salt you could probably get by with not tapping the schrader into the chamber. Just drill a hole a tiny bit smaller then the threads and then tap the pipe.I strongly suggest practicing tapping into a scrap peice of pipe just so you know the size is good and so you don't mess up of your cannon. You don't have to use teflon I guess but it could leak but you can get some at homedepot for like 1$.
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Unread postAuthor: Bluetooth » Thu Dec 21, 2006 10:12 pm

Ok, what the flip! Well maybe he just doesn't pick things up as fast as you. You don't have to TYPE IN ALL CAPS AND PUT A BUNCH OF EXCLAMATION MARKS AFTER SENTENCES!!!!!!! You could have just explained it nicely.
EDIT: I guess i was too late :lol: .
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Unread postAuthor: sgehring » Fri Dec 22, 2006 1:55 am

7/16 bit for 1/4 npt and 5/16 bit for 1/8 npt
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Unread postAuthor: Flying_Salt » Fri Dec 22, 2006 1:57 am

Okay thanks, I'm more of a comby person.
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Unread postAuthor: ProfessorAmadeus » Fri Dec 22, 2006 2:01 am

Just get along now fellas. I didnt know how to do this stuff when I did my first pneumatic and all of you did as well. So lets not get over excited about a question and just answer it.
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Unread postAuthor: frankrede » Fri Dec 22, 2006 2:16 am

I found my first pneumatic in my garage today and I almost cryed.It was so horrible.
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