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Aluminum foil burst disk pressure

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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Aluminum foil burst disk pressure

Unread postAuthor: Pilgrimman » Wed Jan 02, 2008 8:46 pm

I need to know a ballpark pressure that 2 layers of aluminum foil will burst at. Would do it myself, but parents complain, and its cold and dark outside. :cry: If anyone could supply a table of pressures and layers of foil that'd be cool too! :D
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Unread postAuthor: mopherman » Wed Jan 02, 2008 8:49 pm

OK dude, foil doesn't just burst at certain pressures. It depends on the surface area the pressure is acting on. So the burst pressure depends on the size of your union.
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Unread postAuthor: Pilgrimman » Wed Jan 02, 2008 8:50 pm

Sorry, I didn't even think of that. :D It's in a 3/4 " SCH 80 union.
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Unread postAuthor: grumpy » Wed Jan 02, 2008 9:27 pm

are you using 12 gram co2 as the air source?
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Unread postAuthor: Pilgrimman » Wed Jan 02, 2008 11:31 pm

Nope, just a good ol' bike pump!
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Unread postAuthor: mopherman » Thu Jan 03, 2008 5:06 pm

well, to put it straight, we have no clue. This is the kind of thing you have to test for yourself. juts start with one layer and add more until you reach the pressure you're happy with.
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Unread postAuthor: grumpy » Thu Jan 03, 2008 5:48 pm

also keep in mind the two different thickneses of foil, there is regular foil and heavy duty foil , they will have 2 different burst pressures.
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