GB/T 39246-2020 Prefabricated directly buried insulating fittings with seamless high density polyethylene casing pipe

Scope: This standard specifies the terms and definitions, product structure, requirements, test methods, inspection rules and signs, transportation and storage of prefabricated direct-buried thermal insulation pipe fittings of high-density polyethylene no-glare protective pipe. This standard is applicable to the manufacture and inspection of prefabricated direct-buried thermal insulation pipe fittings of high-density polyethylene without external protective pipe with the temperature of the conveying medium (long-term operating temperature) not higher than 120 "C, and the peak temperature not higher than 130 ".

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2020 GB/T 39246-2020 Prefabricated directly buried insulating fittings with seamless high density polyethylene casing pipe

GB/T 39246-2020Prefabricated directly buried insulating fittings with seamless high density polyethylene casing pipe