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Can we use CPVC pipe material for the inspector's test and main drain?
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4 Comments
Paul Pinigis
11/5/2019 10:27:23 am
Once the water is past the inspector's test valve, or main drain valve, it is beyond the sprinkler system so the material choice is not limited.
Alex Hoeft
11/5/2019 11:52:55 am
It looks like the only thing regulated by NFPA 13 for drain piping regarding material type is corrosion resistance when buried underground.
James Phifer
11/5/2019 12:55:44 pm
CPVC piping must not be exposed to sunlight for long periods of time per the manufacturers data sheet. so as long as the drain piping is located inside, you should be ok. The piece sticking through the exterior wall should be galvanized in my opinion. Leave a Reply. |
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