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GB/T 41422-2022Oriented unplasticized poly(vinyl chloride)(PVC-O) pipes and joints for the conveyance of water under pressure (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

April 15, 2022

Implementation date

November 1, 2022

Scope

GB/T 41422-2022 (Oriented unplasticized poly(vinyl chloride)(PVC-O) pipes and joints for the conveyance of water under pressure) is available as an English-translated PDF.

GB/T 41422-2022 is the Chinese standard "Oriented unplasticized poly(vinyl chloride)(PVC-O) pipes and joints for the conveyance of water under pressure".

Its scope clause reads: This document specifies the terms and definitions of oriented rigid polyvinyl chloride (PVC-O) pipes (hereinafter referred to as "pipes") and connectors for pressure water delivery Definitions, symbols and abbreviations, materials, product classification, requirements, test methods, inspection rules and signs, transportation, storage.

This document applies to water temperature not exceeding 45°C, maximum working pressure (MOP) not exceeding 2.5MPa, underground or above ground (not directly exposed in sunlight) pipes and fittings for water supply, pressure drainage, sewerage and irrigation systems.

Note. When the working temperature does not exceed 25°C, the reduction coefficient (ft) of temperature to pressure is equal to 1.For working temperature between 25°C and 45°C, see Appendix B.

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Document preview — GB/T 41422-2022

National Standard of the People's Republic of China

Classification: G 33

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
Introduction
1 Scope
2 Normative references
3 Terms and Definitions, Symbols and Abbreviations
4 Materials
5 Product Category
6 Requirements
7 Test methods
8 Inspection rules
9 Marking, transportation, storage
Appendix A (Informative) Determination of Axial and Hoop Orientation Factors
Appendix B (informative) Reduction factor for temperature to pressure
Appendix C (normative) Long-term hydrostatic strength prediction of pipes
Appendix D (Informative) Minimum Mate Depth of Socket
Appendix E (normative) Ring stiffness
Appendix F (normative) system hydrostatic test
Appendix G (normative) Internal pressure test under bending condition

1 Scope

This document specifies the terms and definitions of oriented rigid polyvinyl chloride (PVC-O) pipes (hereinafter referred to as "pipes") and connectors for pressure water delivery

Definitions, symbols and abbreviations, materials, product classification, requirements, test methods, inspection rules and signs, transportation, storage.

Note. When the working temperature does not exceed 25°C, the reduction coefficient (ft) of temperature to pressure is equal to 1.For working temperature between 25°C and 45°C, see Appendix B.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 1033.1-2008 Determination of the density of non-foamed plastics - Part 1.Impregnation method, pycnometer method and titration method

GB/T 2828.1 Counting Sampling Inspection Procedure Part 1.Lot-by-Lot Inspection Sampling Plan Retrieved by Acceptance Quality Limit (AQL)

GB/T 2918 Standard Environment for Conditioning and Testing of Plastic Samples

GB/T 5761 Suspension method general-purpose polyvinyl chloride resin

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

GB/T 8802 Determination of Vicat softening temperature of thermoplastic pipes and fittings

GB/T 8804.2 Determination of Tensile Properties of Thermoplastic Pipes Part 2.Rigid Polyvinyl Chloride (PVC-U), Chlorinated Polyvinyl Chloride (PVC-C) and high impact polyvinyl chloride (PVC-HI) pipes

GB/T 8806 Determination of dimensions of plastic parts of plastic piping systems

GB/T 9647 Determination of Ring Rigidity of Thermoplastic Pipes

GB/T 13295 Ductile iron pipes, fittings and accessories for water and gas

GB/T 13526 Rigid Polyvinyl Chloride (PVC-U) Pipe Dichloromethane Impregnation Test Method

GB/T 14152 Test method for external impact resistance of thermoplastic pipes

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

GB/T 18252 Plastic piping systems Determination of long-term hydrostatic strength of thermoplastic materials in tubular form by extrapolation

GB/T 18475 Material Grading and Nomenclature for Thermoplastic Pressure Pipes and Fittings General Use (Design) Factor

GB/T 19278-2018 General terms and definitions for thermoplastic pipes, fittings and valves

GB/T 19471.1 Plastic piping system rigid polyvinyl chloride (PVC-U) pipe elastic sealing ring type socket joint angle seal test test method

GB/T 19471.2 Plastic piping system rigid polyvinyl chloride (PVC-U) pipe elastic sealing ring type socket joint negative pressure sealing test test method

GB/T 21300 Determination of Opacity of Plastic Pipes and Fittings

GB/T 21873 Specification for material of interface seals for rubber seals for water supply, drainage and sewage pipes

GB/T 32018.2 Impact-modified polyvinyl chloride (PVC-M) piping system for water supply - Part 2.Pipe fittings

GB/T 41792 | GB/T 41791 | GB/T 40933 | GB/T 43982.11 | GB/T 17643 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 56 pages — is available in the English PDF.

Referenced standards

Normative references

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