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Non-standard bend in schedule 40 DWV?

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Non-standard bend in schedule 40 DWV? Mark G. 04-19-2007
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Posted by Mark G. on April 19, 2007, 10:48 pm
Good evening.

I am connecting 3" schedule 40 DWV pipe to an existing tile line, and I
really need a fifteen degree bend. Any suggestions? Can I get away with
heating and bending this stuff?

Thanks
-Mark



Posted by Mark G. on April 20, 2007, 4:11 pm

> Good evening.
>
> I am connecting 3" schedule 40 DWV pipe to an existing tile line, and I
> really need a fifteen degree bend. Any suggestions? Can I get away with
> heating and bending this stuff?

And the answer is...the pipe heats and bends pretty well. I suppose it's
code violation, but the pipe is only carrying runoff so what the heck.



Posted by PeterD on April 20, 2007, 5:36 pm
wrote:

>Good evening.
>
>I am connecting 3" schedule 40 DWV pipe to an existing tile line, and I
>really need a fifteen degree bend. Any suggestions? Can I get away with
>heating and bending this stuff?
>
>Thanks
>-Mark
>

Perhaps. Fill the pipe with *dry* sand before trying to bend it. Work
carefully. The sand will keep the pipe from collapsing at the bend,
but becareful of what you are doing, watch the bend for distortion.

Posted by Mark G. on April 20, 2007, 6:01 pm
>
> Perhaps. Fill the pipe with *dry* sand before trying to bend it. Work
> carefully. The sand will keep the pipe from collapsing at the bend,
> but becareful of what you are doing, watch the bend for distortion.

Thanks for the advice.

Do plumbing codes typically allow heat bending of 3" schedule 40
DWV pipe, assuming that proper equipment and techniques are
used?

-Mark



Posted by DT on April 20, 2007, 5:51 pm
says...
>
>Good evening.
>
>I am connecting 3" schedule 40 DWV pipe to an existing tile line, and I
>really need a fifteen degree bend. Any suggestions? Can I get away with
>heating and bending this stuff?
>

They make heaters just for this purpose for PVC. They are an electric heating
pad that wraps around the pipe. For what you need you can get away with using a
heat gun. Packing with sand as another poster said can help. If you are bending
near the end of the pipe, be sure and trial fit it into a matching socket while
it is still hot to make sure it is still round.

--
Dennis


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