T/GDC 339-2025 Seismic KZPE silent drainage pipes and fittings for building drainage

Scope

This document specifies the terms and definitions, symbols, abbreviations, materials, pipe grading and specifications, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage for pipes and fittings made from polyethylene resin as the main raw material, which are extruded and molded or processed through secondary forming. This document applies to earthquake-resistant KZPE silent drainage pipes and fittings used in building sewage, wastewater, and rainwater drainage systems. The earthquake-resistant KZPE silent drainage pipes and fittings specified in this document are suitable for drainage temperatures ranging from 0°C to 65°C, with an instantaneous drainage temperature not exceeding 95°C; and are suitable for environmental temperatures ranging from -40°C to 65°C. Terms and definitions, symbols, abbreviations, materials, pipe grading and specifications, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage for pipes and fittings made from polyethylene resin as the main raw material, which are extruded and molded or processed through secondary forming.

Development Information

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