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Home > Home & Garden > Plumbing   »   PVC crush pressure?

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Old Jun 6, 2006, 06:02 PM
Dynomatt
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PVC crush pressure?
On 1 1/2" schedule 40 PVC it states a pressure rating of 330 psi @ 73F. I believe this is a burst pressure (from the inside, out). Would this also be the same for it's crush pressure? (from the outside, in) It's of concern because I'm I need to do a shallow burial under a gravel driveway.

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Old Jun 7, 2006, 04:34 AM   #2  
speedball1
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Quote:
Originally Posted by Dynomatt
On 1 1/2" schedule 40 PVC it states a pressure rating of 330 psi @ 73F. I believe this is a burst pressure (from the inside, out). Would this also be the same for it's crush pressure? (from the outside, in) It's of concern because I'm I need to do a shallow burial under a gravel driveway.
This question has never been brought up before.
How shallow will the PVC be buried? I believe schedule#40 will be strong enough but If you're concerned about external strength then use Schedule #80 instead.
Regards, tom
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