T/GDC 237-2026 Ultrahigh polymer multilayer pressure resistant polyolefin composite pipe

Scope

This document specifies the terms and definitions, symbols, classification and marking, structure and materials, specifications, requirements, test methods, inspection rules, marking, transportation, and storage of ultra-high molecular multi-layer anti-pressure polyolefin composite pipes (hereinafter referred to as composite pipes). This document's Type A composite pipes are suitable for urban water supply, building water supply, fire water supply, and the transportation of special fluids (industrial wastewater, corrosive gases, slurry, solid powders, coal mine water supply, coal mine gas, etc.); they are also suitable for the transportation of oil, natural gas, and oil and gas sludge. Urban gas can also be used as a reference. This document's Type B composite pipes are suitable for urban water supply and drainage, the transportation of fluids such as hot water and heating water below 40°C, and industrial pipes can also be selected. They can be used overhead. This document's Type C composite pipes are suitable for the transportation of fluids with high wear rates in mining and chemical industries. This document's Type D composite pipes are suitable for the transportation of high-pressure fluids in the petroleum and chemical industries. Terms and definitions, symbols, classification and marking, structure and materials, specifications, requirements, test methods, inspection rules, marking, transportation, and storage of ultra-high molecular multi-layer anti-pressure polyolefin composite pipes (hereinafter referred to as composite pipes).

Development Information

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