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Question about tubing

A place to ask general spud cannon related questions.
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Unread postAuthor: nadjatee1996 » Tue Feb 22, 2011 7:35 pm

Safe than sorry, that's one of my motto's, yea once the sheet metal arrive, and I go out and buy some propoxy and a tube cutter, I'll be making a log of my build
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Unread postAuthor: jhalek90 » Tue Feb 22, 2011 10:40 pm

the pressure rating for a pipe, or "tube" has to do with the material it is made out of, the thickness of the walls of the "tube" and the cross sectional surface of the inside of the tube.

If you have for example, a 10 foot stick of 1'' diameter PVC, that has a hypothetical pressure rating of 250psi, and you cut a piece of it to be only 1 foot long, the pressure rating does not change.


This is because you have not changed:
1. the material
2. the thickness of the wall
3. the cross sectional surface area of the inside of the pipe.

Now, i admit, i did simplify this a bit.... but given your question, i felt that it would be a good idea to do so.

If you still dont understand, please, stop your build and find something safer to do.
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Unread postAuthor: nadjatee1996 » Tue Feb 22, 2011 11:03 pm

I understood this like 4 hours ago, I only asked the question because while you're not changing the material and wall thickness, you're changing the volume of the tube, and I thought it would decrease PSI holding ability
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