Grey Sch 40 with a belled end and UL listing is conduit. Most grey Sch 80 is threaded and therefor non belled. White Sch 40/80/SDRs most certainly carry a pressure rating.
I'd use D2729 or D3034 for non pressure sewage but I just make PVC/PE/PEX pipe, I'm not a plumber.
I'd use D2729 or D3034 for non pressure sewage but I just make PVC/PE/PEX pipe, I'm not a plumber.
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