GB/T 43982.2-2026Plastics piping systems for the renovation of underground water supply networks — Part 2: Lining with continuous pipes (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

This document is Part 2 of GB/T 43982 "Plastic Piping Systems for Trenchless Repair of Underground Water Supply Networks". GB/T 43982 has been... The following sections have been published.

---Part 1: General Provisions;

---Part 2: Continuous Interlacing Lining Method;

---Part 11: Hose Insertion Lining Method Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

Introduction

Based on the application area of the pipeline system being repaired, trenchless repair technology is divided into the following technical series.

---Plastic pipe system for trenchless repair of underground pressureless drainage networks;

---Plastic piping system for trenchless repair of underground pressurized drainage networks;

---Plastic piping systems for trenchless repair of underground water supply networks;

--- Plastic pipe system for trenchless repair of underground gas pipeline networks.

GB/T 43982 "Plastic Piping Systems for Trenchless Repair of Underground Water Supply Networks" specifies the plastic piping systems used for trenchless repair of underground water supply networks.

Requirements for pipelines. GB/T 43982 is proposed to consist of five parts.

---Part 1: General Provisions. The purpose is to establish the principles that must be followed for plastic piping systems used in trenchless repair of underground water supply networks. General requirements, general principles and relevant rules.

---Part 2: Continuous Interlacing Lining Method. The purpose is to clarify the applicable materials for the continuous interlacing lining method in production, manufacturing, and construction verification. Technical requirements for the harvesting stage.

---Part 3: Tight-fit Lining Method. The purpose is to clarify the applicable materials for the tight-fit lining method in manufacturing and construction verification. Technical requirements for the harvesting stage.

---Part 4: In-situ Curing Lining Method. The purpose is to clarify the applicable materials for the in-situ curing lining method in manufacturing and construction verification. Technical requirements for the harvesting stage.

---Part 11: Flexible Hoses with Lining Method. The purpose is to clarify the applicable materials for the flexible hose lining method in manufacturing and construction verification. Technical requirements for the harvesting stage. Part 2: Continuous Interlacing Lining Method

1 Scope

This document specifies the M-stage insert pipes and fittings for plastic piping systems used in the continuous insert lining method for repairing water supply networks. Technical requirements, system requirements for Phase I, construction and acceptance.

This document applies to pressure transmission and distribution systems with an operating temperature not exceeding 40°C and a maximum operating pressure (MOP) not exceeding 2.0MPa for general purposes.

Water supply polyethylene piping system. Water supply polyethylene pipes and fittings are manufactured from a blend of PE80 and PE100 materials, with a nominal outer diameter of 16mm. 2500mm. Polyethylene pipes include the following two different types.

---Single-layer solid-wall polyethylene pipe;

---Multi-layer solid-wall polyethylene pipe.

Note 1. The reference operating temperature is 20°C. For the pressure reduction factor of pipelines operating at a constant temperature of 20°C~40°C, see GB/T 13663.1-2017. Appendix A.

Note 2. The purchaser is responsible for selecting the products specified in this document in accordance with its specific application needs and the requirements of relevant laws, regulations, standards or specifications.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies to this document.

GB/T 3682.1 Determination of melt mass flow rate (MFR) and melt volumetric flow rate (MVR) of thermoplastics Part 1: Standard Methods

GB/T 6111 Determination of internal pressure resistance of thermoplastic piping systems for fluid transport

GB/T 8804.1 Determination of tensile properties of thermoplastic pipes - Part 1: General test methods

GB/T 8804.3 Determination of tensile properties of thermoplastic pipes - Part 3: Polyolefin pipes

GB/T 9126.1 Non-metallic flat gaskets for pipe flanges - Part 1: PN series

GB/T 9345.1 Determination of ash content in plastics - Part 1: General methods

GB/T 13021 Determination of carbon black content in polyolefin pipes and fittings by calcination and pyrolysis method

GB/T 13663.1 Polyethylene (PE) piping systems for water supply - Part 1: General principles

GB/T 13663.2 Polyethylene (PE) piping systems for water supply - Part 2: Pipes

GB/T 13663.3 Polyethylene (PE) piping systems for water supply - Part 3: Fittings

GB/T 13663.5 Polyethylene (PE) piping systems for water supply - Part 5: System suitability

GB/T 17219 Safety Evaluation Standard for Drinking Water Transmission and Distribution Equipment and Protective Materials

GB/T 18251 Determination of pigment or carbon black dispersion in polyolefin pipes, fittings and compoundings

GB/T 18252 Determination of long-term hydrostatic strength of thermoplastic materials in pipe form by extrapolation method for plastic piping systems

GB/T 18253 Types of inspection documents for steel and steel products

GB/T 18475 Classification and Nomenclature of Materials for Thermoplastic Pressure Pipes and Fittings - Overall Service (Design) Factor

GB/T 18476 Determination of crack propagation resistance of polyolefin pipes for fluid transport - Test method for slow crack propagation (notch test)