GB/T 43982.11-2025: Plastics piping systems for renovation of underground water supply networks - Part 11: Lining with inserted hoses

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Scope

This document specifies the technical requirements for M stage hoses and fittings for
plastic piping systems used in water supply network renovation using the lining with
inserted hoses, and I stage system requirements, construction and acceptance.
This document applies to the hoses for repairing underground water supply networks
with an operating temperature not exceeding 45°C (hereinafter referred to as the hoses)
and their accessories. Repairs to above-ground pipes in water supply networks can be
carried out in accordance with this document.
NOTE 1.The supplier provides the pressure reduction factor. The purchaser is responsible for
selecting the appropriate product specified in this document based on its specific application
requirements and in conjunction with relevant laws, regulations, standards, or specifications.
NOTE 2.When the internal membrane is PE, the applicable operating temperature does not exceed
40°C. When the internal membrane is TPU, the applicable operating temperature does not exceed
45°C.