T/WJGY 002-2022 Steel (copper) covered plastic composite pipe
T/WJGY 002-2022 Steel (copper) covered plastic composite pipe
Basic Information
Scope
Scope: This document specifies the definition, classification codes, and examples of steel (copper) laminated composite pipes (hereinafter referred to as composite pipes), their structure, requirements, test methods, inspection rules, marking, packaging, transportation, and storage. This document, together with T/WJGY 003—2022 "Steel (Copper) Laminated Composite Pipes", is applicable to systems for conveying domestic drinking water, cold and hot water, heating, and other media. This document is not applicable to pipe materials used in fire extinguishing systems and systems that do not use water as a medium. Main technical content: appearance quality, specification dimensions, hydrostatic pressure strength, physical and chemical properties, and hygienic performance.