T/ZZB 2570-2021 Polypropylene (PP) Woven Structural Wall Pipe for Underground Drainage and Sewage Disposal

Scope

Main technical content: This document specifies the terms and definitions, symbols and abbreviations, basic requirements, pipe classification, structural types and connection methods, technical requirements, inspection methods, inspection rules, marking, transportation and storage, and quality commitments for polypropylene (PP) wrapped structural wall pipes used for underground drainage and sewage disposal. This document is applicable to wrapped structural wall pipes and fittings (or solid wall fittings) made from polypropylene (PP) resin as the main raw material and polymer materials (generally polypropylene) as the auxiliary support structure, which are formed by winding and processed. This document is applicable to polypropylene (PP) wrapped structural wall pipes used for underground drainage and sewage disposal with a long-term use temperature not exceeding 45 °C. Taking into account the material's chemical resistance and temperature resistance, it can also be used for non-pressure underground industrial drainage and sewage pipes.

Development Information

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