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Question about psi ratings.

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Question about psi ratings.

Unread postAuthor: us sniper » Sat Jul 21, 2007 1:36 am

I was looking for the pressure rating of schedule 80 ratings and the numbers on spud files were in the thousands and I was wondering what the actual rating was? I also looked for the pressure rating of iron pipe was, but on mcmasters it was only 150 psi. Does anyone know the actual maximum psi. For the schedule 80 pvc can you use the regular pvc glue?
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Unread postAuthor: Pete Zaria » Sat Jul 21, 2007 3:52 am

Schedule is only a wall thickness - NOT a pressure rating.

There's sch80 pipe that can hold 600psi and sch80 pipe that can't hold 200 psi (or shouldn't, anyway).

It needs to be NSF-PW or have a PSI rating marked on it, to be pressure rated.

This chart has some useful info, go to this page and scroll down: http://www.engineeringtoolbox.com/pvc-c ... d_796.html Use the maximum operating pressure, not burst pressure, obviously....

It also varies from manufacturer to manufacturer, and obviously it varies between pipe sizes.

Hope that was helpful.

Pete Zaria.
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Unread postAuthor: sandman » Sat Jul 21, 2007 4:34 pm

and normal PVC glue will work, as it is still PVC :roll:
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