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GB/T 29730-2025: Distribution manifold of cold/hot water
Status: Valid GB/T 29730: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 29730-2025 | English | 439 |
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Distribution manifold of cold/hot water
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GB/T 29730-2025
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| GB/T 29730-2013 | English | 349 |
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Distribution manifold of cold/hot water
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GB/T 29730-2013
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Basic data | Standard ID | GB/T 29730-2025 (GB/T29730-2025) | | Description (Translated English) | Distribution manifold of cold/hot water | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q76 | | Classification of International Standard | 91.140.30 | | Word Count Estimation | 22,253 | | Date of Issue | 2025-08-01 | | Date of Implementation | 2026-02-01 | | Older Standard (superseded by this standard) | GB/T 29730-2013 | | Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China | GB/T 29730-2025: Distribution manifold of cold/hot water---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT29730-2025
ICS 91.140.30
CCSQ76
National Standard of the People's Republic of China
Replaces GB/T 29730-2013
Manifold for hot and cold water
Released on August 1, 2025
Implementation on February 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Classification and labeling 2
5 General Requirements 3
6 Requirements 4
7 Test methods 7
8 Inspection Rules 11
9 Marking, packaging, transportation and storage 12
Appendix A (Informative) Compression Fitting Branch Joint Structure 13
Appendix B (Informative) Acceptance test method for EPDM rubber seal ring 14
Reference 15
Preface
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.
This document replaces GB/T 29730-2013 "Manifolds for hot and cold water". Compared with GB/T 29730-2013, except for the structural adjustment and
In addition to editorial changes, the main technical changes are as follows.
a) The terms "manifold", "manifold regulating valve", "manifold on-off valve" and their definitions have been changed (see 3.1, 3.4, 3.5,.2013
3.1, 3.4, and 3.5 of the.2012 edition);
b) Added the terms "electrothermal actuator", "electric actuator", "flow coefficient" and their definitions (see 3.6 to 3.8);
c) Added classification (see 4.1);
d) The marking has been changed (see 4.2, 4.3 of the.2013 edition);
e) The general requirements for structure, materials, and surface treatment have been changed (see 5.1 to 5.3, 4.1, 5.1, 5.2, and 5.4 of the.2013 edition);
f) Added general requirements for actuators (see 5.4);
g) Changed the requirements for appearance, dimensions and connections, air tightness, pressure strength, hydraulic balance performance, flow regulation performance and bending resistance
(See 6.1, 6.2, 6.4 to 6.8, and 4.2, 5.3, 6.1 to 6.6 of the.2013 edition);
h) Added requirements for corrosion resistance, torsion resistance, pull-out resistance, and opening and closing performance (see 6.3, 6.9 to 6.11);
i) The test methods for appearance, air tightness, pressure strength, hydraulic balance performance, flow regulation performance and bending resistance have been changed (see 7.2,
7.5~7.9,.2013 version 7.1~7.6);
j) Added test conditions, dimensions and connections, corrosion resistance, torsion resistance, pull-out resistance and opening and closing performance test methods (see
7.1, 7.3, 7.4, 7.10, 7.11, 7.12);
k) Added inspection categories (see 8.1);
l) The inspection rules for factory inspection and type inspection have been changed (see 8.2, 8.3, and 8.1, 8.2 of the.2013 edition).
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 is proposed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China.
This document is under the jurisdiction of the National Technical Committee for Standardization of HVAC and Purification Equipment (SAC/TC143).
This document was drafted by. Weijia (Shanghai) Industrial Co., Ltd., China Construction Metal Structure Association, Zhuxin (Hebei Xiong'an) Inspection and Testing Co., Ltd.
Co., Ltd., China Academy of Building Research Co., Ltd., Zhejiang Manruide Comfort System Co., Ltd., Zhejiang Jielida HVAC Technology Co., Ltd.,
Tianjin Weixing New Building Materials Co., Ltd., Zhejiang Dunyun Industrial Co., Ltd., Gongyuan Co., Ltd., Zhejiang Jufan Copper Co., Ltd.,
Zhejiang Mingshi Xingxin HVAC Technology Co., Ltd., Zhejiang Daberlin Valve Co., Ltd., Rifeng Enterprise Group Co., Ltd., Zhejiang Di'ai Intelligent Control Technology Co., Ltd.
Technology Co., Ltd., Ningbo Jiekelong Precision Industry Co., Ltd., Zhejiang Aitz Valve Technology Co., Ltd., Zhejiang Hengjie Copper Industry Co., Ltd.,
Zhejiang Zeiss Pipe Technology Co., Ltd., Zhejiang Stant Valve Co., Ltd., Taizhou Yongxin Valve Co., Ltd., Zhejiang Xinfan HVAC Intelligent
Control Co., Ltd., Shanghai Feisina HVAC Technology Co., Ltd., Yuhuan Zhongliang Fluid Intelligent Control Co., Ltd., Zhejiang Su Ming Valve Co., Ltd.
Limited Company.
The main drafters of this document are. Kong Xiangzhi, Xue Mei, Gu Xiuzhi, Hou Jie, Lv Weihua, Wang Chao, Chen Haihuan, Zheng Wei, Zhou Weidong, Ji Xiong, Wu Wanrong,
Feng Guoping, Lin Hailin, Wang Hui, Zhu Xinyan, Yan Rongjie, Wang Xiaolin, Fan Weiming, Bei Yesen, Chen Jingjing, Luo Yongqing, Jiang Linghui, Ye Chaofeng, Cai Shanliang,
Su Zongyao.
This document was first published in.2013 and this is the first revision.
Manifold for hot and cold water
1 Scope
This document specifies the classification and marking, general requirements, requirements, test methods of manifolds for hot and cold water (hereinafter referred to as "manifolds").
Methods, inspection rules, marking, packaging, transportation and storage.
This document applies to manifolds in hot and cold water cooling and heating systems of civil buildings and ancillary buildings of industrial buildings.
This document is not applicable to large manifolds in refrigeration rooms or heating exchange stations.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 1220 Stainless steel bars
GB/T 1804 General tolerances Tolerances for linear and angular dimensions without tolerance indications
GB/T 2828.1 Sampling procedures for inspection by attributes Part 1.Sampling plans for batch inspection based on acceptance quality limit (AQL)
GB/T 5231 Grades and chemical compositions of processed copper and copper alloys
GB/T 6461-2002 Rating of specimens and test pieces of metal and other inorganic coatings on metal substrates after corrosion testing
GB/T 7306.1 55° sealing pipe threads Part 1.Cylindrical internal threads and conical external threads
GB/T 7306.2 55° sealing pipe threads Part 2.Conical internal threads and conical external threads
GB/T 7307 55° non-sealed pipe thread
GB/T 9124.1 Steel pipe flanges Part 1.PN series
GB/T 9124.2 Steel pipe flanges Part 2.Class series
GB/T 9797 Metallic and other inorganic coatings—Nickel, nickel-chromium, copper-nickel and copper-nickel-chromium electroplated coatings
GB/T 10125 Artificial atmosphere corrosion test Salt spray test
GB/T 12771 Stainless steel welded pipes for fluid transportation
GB/T 13912 Technical requirements and test methods for hot-dip galvanized coatings on metallic steel products
GB/T 13913 Specification and test methods for electroless nickel-phosphorus alloy coatings on metallic coverings
GB/T 13927 Industrial valve pressure test
GB/T 14536.1 Automatic electric controllers Part 1.General requirements
GB/T 14832 Compatibility test of standard elastomer materials and hydraulic fluids
GB/T 15820 Polyethylene pressure pipe and fittings connection resistance test
GB/T 30832 Test method for valve flow coefficient and flow resistance coefficient
JB/T 8219 Standard and intelligent electric actuators for industrial process control systems
QB/T 5788 Electric Heating Actuator
YS/T 583 Brass rods for hot-forged plumbing fittings
3 Terms and Definitions
The following terms and definitions apply to this document.
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