allowable deflection(s) of PVC pressure pipe 1

[kknowle2]

I need to know how much it is possible to bend say a 16 inch PVC AWWA class 900 (SDR25) pipe. We are planning to use it for potable water and we need to get around a curve in the road. If we can bend it enough we might be able to eliminate the need for a mechanical joint bend in the pipe line. The Unibell Handbook of PVC Pipe appears to indicate that for a 20 foot section of pipe we can get a 4.2 degree or about .75 feet of deflection.
Can anyone verify this?
Thanks

 

[mikolay]

Each pipe manufacturer should have his own joint deflection limits. You can verify by calling your local PVC pipe suppliers and requesting the brochure for the pipe.

 

[COYOTE]

I've done a research for the same question you have and found an average deflection for pvc pipes at joints of 5 degrees. This can eliminate the use of bends for angles of this magnitude or less. you will find that you can povide pipe for large radii curve with almost no bends.

 

[firasyounes]

I like to know is it better to use uPVC pipes in waste water plumbing, or to use "font" pipes.

 

[anylev]

IF you need more joints for the deflection, use shorter pipes. But please don't try to bend the pipe. It'll have a rough enough life down there!

On behalf of the peoples movement for the liberation of captive pipelines.

anylev