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ASTM D1785 does NOT approve that pipe for use with natural gas - PVC schedule 40 / 80 / 120 is approved for use of pressurized liquids ONLY. The ONLY plastic (type) pipe approved for Natural Gas above ground is "Polyethyline" pipe "PolyPipe" that uses special heat sealed fittings. (ANSI 58 / ASTM D2513)

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16y ago

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