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Check valve spec Q's

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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Check valve spec Q's

Unread postAuthor: Eddbot » Wed Feb 27, 2008 1:04 am

I was looking on McMaster for check valves, I found it in the catalogue, but on the right side the price list is divided into two columns. One for a Buna-N Seat, and one for a Viton Seat. and i have no idea what they mean... any info would be greatly appreciated.
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Unread postAuthor: jackssmirkingrevenge » Wed Feb 27, 2008 1:34 am

They're just 2 different types of rubber, since you're using air and not liquid it's irrelevant what the seals are made out of really.
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Unread postAuthor: Eddbot » Wed Feb 27, 2008 1:35 am

so... pick the cheaper one?
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Unread postAuthor: jackssmirkingrevenge » Wed Feb 27, 2008 1:37 am

Yep, presumably in this case it's the Buna-N
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Unread postAuthor: Eddbot » Wed Feb 27, 2008 1:38 am

thanks for the help
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