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GB/T 44579-2024Water distribution and collection devices of thermoplastics materials (English PDF)

热塑性塑料分集水器

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 29, 2024

Implementation date

April 1, 2025

Scope

GB/T 44579-2024 is the English-translated version of 热塑性塑料分集水器.

GB/T 44579-2024 is the Chinese national standard covering the plastic manifold that splits and recombines flow in hot and cold water, drinking water, heating and cooling and water-treatment systems — the manifold body, the valves and the seals, the hydrostatic strength and the sealing of the assembly, the transmittance and the hygiene requirements that apply once the water is drinking water, the thermal cycling and pull-off tests, and the hydraulic balance that decides whether every circuit gets its share. First edition, under the China National Light Industry Council. In force from 1 April 2025. Issued on 29 September 2024, it has been in force since 1 April 2025.

Document preview — GB/T 44579-2024

National Standard of the People's Republic of China

ICS: 83.140.30
Classification: G 33

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface... III 1 Scope1
2 Normative references1
3 Terms and Definitions2
4 Symbols and abbreviations2
4.1 Symbols2
4.2 Abbreviations2
5 Materials and components3
5.1 Manifold3
5.2 Valves3
5.3 Seals3
6 Design3
7 Requirements4
7.1 Appearance4
7.2 Color4
7.3 Dimensions4
7.4 Hydrostatic strength5
7.5 Physical and mechanical properties of manifolds6
7.6 Sealing of assemblies7
7.7 Hydraulic balance performance7
7.8 Transmittance7
7.9 Hygiene requirements7
7.10 Thermal Cycle Test7
7.11 Pull-off test8
8 Test methods8
8.1 State Adjustment8
8.2 Appearance and color8
8.3 Dimensions8
8.4 Hydrostatic strength8
8.5 Melt mass flow rate change rate8
8.6 Oxidation Induction Time8
8.7 Ash content8
8.8 Density8
8.9 Vicat softening temperature9
8.10 Oven test9
8.11 Drop test9
8.12 Pigment Dispersion9
8.13 Sealing test9
8.14 Hydraulic balance performance9
8.15 Transmittance9
8.16 Hygiene requirements9
8.17 Thermal Cycle Test9
8.18 Pull-off test9
9 Inspection Rules10
9.1 Inspection categories10
9.2 Batching and Grouping10
9.3 Factory Inspection10
9.4 Type inspection10
9.5 Decision Rules11
10 Marking, packaging, transportation and storage11
10.1 Logo11
10.2 Packaging11
10.3 Transportation11
10.4 Storage11
11 Technical Description11
Appendix A (Informative) Technical Description12
References13

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting is required.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by China Light Industry Federation.

This document is under the jurisdiction of the National Technical Committee for Standardization of Plastic Products (SAC/TC 48).

This document was drafted by: Shanghai Xinling Valve Co., Ltd., Shanghai Baidie Pipe Technology Co., Ltd., Zhejiang Weixing New Building Materials Co., Ltd.

Co., Ltd., Aikang Enterprise Group (Zhejiang) Co., Ltd., Fiso Measurement and Control Technology (Suzhou) Co., Ltd., Tianjin Junxing Pipe Industry Group Group Co., Ltd., Zhejiang Zhongcai Pipeline Technology Co., Ltd., Hangzhou Hefeng Plastic Co., Ltd., and Jiangsu Pinsheng Pipe Industry Co., Ltd.

The main drafters of this document are: Zhu Liping, Chai Gang, Jin Tiebiao, Yang Xingyue, Zhang Xian, Wu Xiaofen, Wang Baiti, Zhu Xiaoyong, Yang Yichen, Tang Hui. Thermoplastic manifolds

1 Scope

This document specifies the materials, design, requirements, and test methods of thermoplastic manifolds and manifolds (hereinafter referred to as "manifolds") Methods, inspection rules, marking, packaging, transportation and storage.

This document applies to the manufacture and testing of manifolds in building hot and cold water, drinking water, heating/cooling, water treatment and other systems.

2 Normative references

GB/T 1033.1

GB/T 2828.1

GB/T 2918

GB/T 3682.1

GB/T 6111

GB/T 8801

GB/T 8802

GB/T 8803

GB/T 8806

GB/T 9345.1-2008

GB/T 10002.1-2023

GB/T 10002.2

GB/T 13663.3

GB/T 15820

GB/T 17219

GB/T 18251

GB/T 18742.3

GB/T 18993.3

GB/T 19278

GB/T 19466.6

GB/T 19473.3

GB/T 19993

GB/T 20207.2

GB/T 21300

GB/T 28494

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 1033.1 · GB/T 2918 · GB/T 3682.1 · GB/T 6111 · GB/T 8802 · GB/T 8806 · GB/T 9345.1-2008 · GB/T 13663.3 · GB/T 15820 · GB/T 18251 · GB/T 18742.3 · GB/T 18993.3 · GB/T 19466.6 · GB/T 19473.3 · GB/T 19993 · GB/T 21300 · GB/T 28494

Editions of GB/T 44579

Edition	Title	Revision	Status
GB/T 44579-2024	Water distribution and collection devices of thermoplastics materials	current edition	Current

This page sells the current edition, GB/T 44579-2024. Earlier editions are listed for reference only.

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