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GB/T 45384-2025Safety and control devices for gas burners and gas-burning appliances — Particular requirements — Pneumatic gas/air ratio pressure regulator (English PDF)

燃气燃烧器和燃烧器具用安全和控制装置特殊要求气动式燃气与空气比例调节装置

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 28, 2025

Implementation date

October 1, 2025

Scope

GB/T 45384-2025 is the English-translated version of 燃气燃烧器和燃烧器具用安全和控制装置特殊要求气动式燃气与空气比例调节装置.

GB/T 45384-2025 is the Chinese national standard covering the valve that holds the gas pressure in a fixed ratio to a signal air pressure, so that a modulating burner keeps its air-fuel mixture right at every firing rate — the classification and grouping, the structure, the materials and the connections, the component and performance requirements, the test conditions and the functional test rig, the factory and type inspection, and the marking, installation instructions and warnings. It supports the essential requirements of GB 16914-2023 for gas-burning appliances. First edition, under the Ministry of Housing and Urban-Rural Development. In force from 1 October 2025. Issued on 28 March 2025, it has been in force since 1 October 2025.

Document preview — GB/T 45384-2025

National Standard of the People's Republic of China

ICS: 91.140
Classification: P 45

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

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Classification and grouping3
4.1 Classification3
4.2 Group3
5 Structure and materials3
5.1 General requirements3
5.2 Structure3
5.3 Materials4
5.4 Connection5
6 Requirements5
6.1 General requirements5
6.2 Component Requirements6
6.3 Performance requirements6
7 Test methods7
7.1 Test conditions7
7.2 Component test8
7.3 Performance test8
8 Inspection Rules12
8.1 Factory Inspection12
8.2 Type inspection13
9 Marking, installation and operating instructions13
9.1 Sign13
9.2 Installation and operating instructions14
9.3 Warning14
10 Packaging, transportation and storage14
Appendix A (Informative) This document supports the basic requirements of GB 16914-2023 Clause Correspondence Table15
Appendix B (Informative) Application diagram of proportional control device17
Appendix C (Normative) Functional test device19
Reference21

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.

This document is consistent with GB 16914-2023 "Safety Technical Conditions for Gas Burning Appliances". Appendix A of this document provides Clause correspondence table supporting the basic requirements of GB 16914-2023.

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 and coordinated by the Ministry of Housing and Urban-Rural Development of the People's Republic of China.

This document was drafted by: Guangzhou Jingding Electric Technology Co., Ltd., China Municipal Engineering North China Design and Research Institute Co., Ltd., AO Smith (China) Water Heater Co., Ltd., Guangzhou Desen Home Environment Technology Co., Ltd., Xit Gas Control System Manufacturing (Suzhou) Co., Ltd.

Co., Ltd., Yushidu Intelligent Equipment (Tianjin) Co., Ltd., Guangdong Wanhe Thermal Energy Technology Co., Ltd., Wuhu Midea Kitchen and Bathroom Appliance Manufacturing Co., Ltd., Shanghai Qiaoheng Industrial Co., Ltd., Qingdao Economic and Technological Development Zone Haier Water Heater Co., Ltd., Shaoxing Aike Electric Co., Ltd., Ito Mirai Energy Equipment (Shanghai) Co., Ltd., Zhejiang Viessmann Heating Technology Co., Ltd., Shanghai Rinnai Co., Ltd., Bosch Thermotechnology (Shanghai) Co., Ltd.

Ltd., Weineng (Wuxi) Heating Equipment Co., Ltd., Zhejiang Shuaifeng Electric Co., Ltd., Schindler Technology Group Co., Ltd., Guangdong Qiangji Electric Technology Co., Ltd., Zhejiang Sanguo Precision Electromechanical Co., Ltd., Dongguan Arike Thermal Equipment Co., Ltd., Changqing Thermal Technology (Zhongshan) Co., Ltd., Zhongshan Huaxi Electronic Technology Co., Ltd., and Cixi Tianxing Electric Co., Ltd.

The main drafters of this document are: Pang Zhiyong, Zhang Mengting, Cai Maohu, Xiong Leiming, Pang Bo, Ling Juan, Du Guangxing, Liu Hua, Xu Guoping, Yi Qingwei, Zheng Tao, Du Jianming, Wang Xianglin, Shao Bogui, Xu Weichun, Sun Chenhuan, Feng Feng, Shao Yuji, Wu Xiaotian, Peng Yin, Tang Jinfeng, Liu Xianli, Deng Xianmin, Pei Jun, Qian Zhihong, and Yang Guoqiang.

Safety and control for gas burners and burning appliances Special requirements for equipment. pneumatic gas and air Proportional adjustment device

1 Scope

This document specifies the pneumatic gas-air ratio regulator for burners and combustion appliances using town gas specified in GB/T 13611.

The classification and grouping, structure and materials, requirements, test methods, inspection rules, marking, installation and Operating instructions, packaging, transportation and storage.

This document is applicable to gas water heaters and gas heating systems with a nominal size not exceeding DN250 and a maximum inlet pressure not exceeding 500kPa.

Gas burning appliances or combustion equipment such as water heaters, gas stoves, gas burners/machines, gas heaters, gas steamers, gas boilers, etc.

A proportional regulating device that changes the gas pressure and can be tested independently.

This document does not apply to mechanically linked gas/air ratio control devices and electronic gas/air ratio control devices specified in GB/T 39488. Example control system.

2 Normative references

GB/T 2423.10

GB 3836.4

GB/T 30597-2014

3 Terms and definitions

The terms and definitions defined in GB/T 30597-2014 and the following apply to this document.

3.1

A device that adjusts the gas output pressure and maintains a certain ratio with air by responding to the signal pressure.

Note. See Appendix B for application examples.

3.2 Gas/air ratio

The linear ratio of the signal pressure applied to the proportional regulating device to the gas outlet pressure.

3.3 signal pressuresignalpressure

The air pressure, differential pressure and/or combustion chamber pressure applied to the ratio regulator to provide a specific gas outlet pressure.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 2423.10 · GB 3836.4 · GB/T 30597-2014

Editions of GB/T 45384

Edition	Title	Revision	Status
GB/T 45384-2025	Safety and control devices for gas burners and gas-burning appliances - Particular requirements - Pneumatic gas/air ratio pressure regulator	current edition	Current

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