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6" pipe

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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6" pipe

Unread postAuthor: VH_man » Tue Feb 06, 2007 10:00 am

My new lowes sells 6" pipe, but i noticed it had a VERY low pressure rating, about 90 PSI. i was wondering how people make air chambers with this stuff wiout blowing up. i order to have a high pressure rating, i have to use shedule 80, which is, VERY expensive.
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Unread postAuthor: Hotwired » Tue Feb 06, 2007 12:22 pm

90psi is fine for a combustion

If you're wanting to have a big hybrid or high pressure pneumatic chamber then you're going to have to splash out for a higher rated pipe.

No sch40 then?
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Unread postAuthor: VH_man » Tue Feb 06, 2007 4:15 pm

yeah, the 6 inch pipe that Lowes sells is rated to 90 PSI...... ill stick with 4 inch i guess unless i find a cheap way to get 6 inch pipe that can take the pressure. Oh well...... Does anyone know where joel gets his 6 inch pipe from?
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Unread postAuthor: mark.f » Wed Feb 07, 2007 6:51 am

Hmmm... the stick of 6" I've got is rated to 180 PSI. Is your's SCH-40 or a thinner-walled variant like SDR-21/26/etc.?
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Unread postAuthor: VH_man » Wed Feb 07, 2007 6:01 pm

Yeah mine is Schd 40, and the schd 80 stuff is like 300 bucks for 8 feet and mcmaster..... not to mention the pressure rated fittings
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