GB/T 43982.11-2025 Plastics piping systems for renovation of underground water supply networks—Part 11:Lining with inserted hoses
GB/T 43982.11-2025 Plastics piping systems for renovation of underground water supply networks—Part 11:Lining with inserted hoses
Basic Information
Scope
This document specifies the technical requirements for M-stage hoses and fittings of plastic pipe systems used in the repair of water supply networks by inserting hoses, as well as the system requirements of Phase I, construction, and acceptance. This document applies to insertion hoses (hereinafter referred to as hoses) and their accessories for the repair of underground water supply networks with a working temperature not exceeding 45°C. The repair of aboveground water supply networks can be carried out in accordance with this document. Note 1: The supplier provides a pressure reduction coefficient. It is the responsibility of the purchaser to select the products specified in this document appropriately based on their specific application needs and in accordance with relevant laws, standards, or regulatory requirements. Note 2: When the inner lining material is PE, the applicable working temperature does not exceed 40°C; when the inner lining material is TPU, the applicable working temperature does not exceed 45°C.