How problematic is water temperature above 140°F in PVC pipe?

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Brandon Weiss

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Okay so I’m using PVC pipe for the drainage in our house and I’ve got this steam oven which gets plumbed in (it has a cold water line and needs drainage). The manual says the steam oven will discharge water at about 160°F.

When water exits the steam oven it’ll run through a provided drain hose that’s about 8 feet long, before it terminates in a standpipe inside a cabinet. For simplicity I’d like to use PVC, but that has a maximum operating temperature of 140°F.

Alternatively I suppose I could use ABS, which I think has a maximum operating temperature of 170°F, although the water is going to mostly drop straight down the stand pipe, hit a trap (where the water will probably be cooler), and then travel maybe another few feet before I’d still have to do a no-hub transition back to PVC.

Is the extra 20°F going to be problematic for PVC? Should I use ABS for that short run so the water cools down more first? Thanks!
 
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