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1.5" PVC breech loading shell size

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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1.5" PVC breech loading shell size

Unread postAuthor: origin unknown » Wed May 09, 2007 8:51 pm

I am making shells for my upcoming gun, and I need to know what pipe can fit inside 1.5" sch40 pipe. They are shells, so they dont need to be all that tight inside the pipe.
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Unread postAuthor: JDP12 » Wed May 09, 2007 9:03 pm

Umm...1.25" pipe would probably fit pretty good..if not just use 1" pipe...Or try 1" pipe with endcaps on it. I haven't tried it so i don't know..But it seems like those endcaps would give a pretty good seal..They may be too big I'm not sure
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Unread postAuthor: origin unknown » Wed May 09, 2007 9:06 pm

I was thinking about using 1.25" but I wasn't sure what its OD was.
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Unread postAuthor: JDP12 » Wed May 09, 2007 9:08 pm

well here's a link to pipe sizes but its not working on my computer for some reason so I can't tell you..but check it out for yourself

http://www.harvel.com/PVCpipe4080spec.html
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Unread postAuthor: origin unknown » Wed May 09, 2007 9:15 pm

It doesn't work for me either.
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Unread postAuthor: goathunter » Wed May 09, 2007 9:18 pm

1.25" unfortunately is to large to fit in 1.5".You'll have to lathe it down to fit.
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Unread postAuthor: JDP12 » Wed May 09, 2007 9:19 pm

Hmm..well do this..go to yahoo.com and type in Schedule 40 PVC Dimensions. The first link is the same one. I just don't know why a direct link won't work..A 1.25" pipe is slightly too large to fit in regular 1.5" pipe. But Schedule 40 1.25" pipe will fit in 1.5"SDR-21 almost perfectly..Because I believe the inner dimension of 1.5" SDR-21 is 1.7"
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Unread postAuthor: noname » Wed May 09, 2007 10:42 pm

You can use 1" couplers; they're a perfect fit.
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