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GB/T 1921-2025: Specification for industrial boilers
Status: Valid GB/T 1921: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 1921-2025 | English | 769 |
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Specification for industrial boilers
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GB/T 1921-2025
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| GB/T 1921-2004 | English | 139 |
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Parameters for industrial steam boilers
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GB/T 1921-2004
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| GB/T 1921-1988 | English | 199 |
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Specifications for industrial steam boiler
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PDF similar to GB/T 1921-2025
Basic data | Standard ID | GB/T 1921-2025 (GB/T1921-2025) | | Description (Translated English) | Specification for industrial boilers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J98 | | Classification of International Standard | 27.060.30 | | Word Count Estimation | 38,384 | | Date of Issue | 2025-08-01 | | Date of Implementation | 2026-02-01 | | Older Standard (superseded by this standard) | GB/T 1921-2004, GB/T 3166-2004 | | Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China | GB/T 1921-2025: Specification for industrial boilers---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/GBT1921-2025
ICS 27.060.30
CCSJ98
National Standard of the People's Republic of China
Replaces GB/T 1921-2004, GB/T 3166-2004
Technical Specifications for Industrial Boilers
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
Introduction V
1 Scope 1
2 Normative references 1
3 Terms and Definitions 3
4 Parameter series and model compilation 4
5 Performance 4
6 Materials 8
7 Design 8
8 Manufacturing 17
9 Inspection and testing 18
10 Painting, packaging, nameplate, logo and accompanying documents 18
11 Installation, commissioning, acceptance and operation 20
Appendix A (Normative) Steam Boiler Parameter Series 22
Appendix B (Normative) Hot Water Boiler Parameter Series 23
Appendix C (Normative) Organic Heat Transfer Material Boiler Parameter Series 24
Appendix D (Normative) Industrial Boiler Model Compilation Method 26
Reference 31
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 1921-2004 "Industrial Steam Boiler Parameter Series" and GB/T 3166-2004 "Hot Water Boiler Parameter Series".
Compared with GB/T 1921-2004 and GB/T 3166-2004, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
--- Changed the scope (see Chapter 1, Chapter 1 of GB/T 1921-2004 edition and Chapter 1 of GB/T 3166-2004 edition);
--- Changed the steam boiler parameter series (see 4.1.1, Chapter 2 of GB/T 1921-2004 edition);
--- Changed the hot water boiler parameter series (see 4.1.2, Chapter 2 of GB/T 3166-2004 edition);
--- Added organic heat carrier boiler parameter series (see 4.1.3);
--- Added product model compilation method (see 4.2);
--- Increased product performance requirements (see Chapter 5);
--- Increased material requirements (see Chapter 6);
--- Added design requirements (see Chapter 7);
--- Added manufacturing requirements (see Chapter 8);
--- Increased inspection and test requirements (see Chapter 9);
--- Added requirements for painting, packaging, nameplates, markings and accompanying documents (see Chapter 10);
--- Added requirements for installation, commissioning, acceptance and operation (see Chapter 11).
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 National Technical Committee for Standardization of Boilers and Pressure Vessels (SAC/TC262).
This document was drafted by. Shanghai Industrial Boiler Research Institute Co., Ltd., Borite Thermal Energy Equipment Co., Ltd., Harbin Hongguang Boiler
General Factory Co., Ltd., Shunde Testing Institute of Guangdong Special Equipment Testing Institute, Nantong Wanda Energy Power Technology Co., Ltd., Jiangsu Shuang
Liang Boiler Co., Ltd., Miura Industry (China) Co., Ltd., Disen (Changzhou) Energy Equipment Co., Ltd., Shanghai Special Equipment Supervision and Inspection
Technology Research Institute, Henan Sitong Boiler Co., Ltd., Hangzhou Special Equipment Inspection and Scientific Research Institute, Shandong Special Equipment Inspection and Research Institute
Group Co., Ltd., Sichuan Special Equipment Inspection Institute, Fangkuai Boiler Co., Ltd., Tianjin Baocheng Machinery Manufacturing Co., Ltd., Taishan
Group Co., Ltd., Wuxi Xineng Boiler Co., Ltd., Zhejiang Tefu Development Co., Ltd., Suzhou Hailu Heavy Industry Co., Ltd.,
Taiyuan Boiler Group Co., Ltd., Zhejiang Liju Thermal Energy Equipment Co., Ltd., Fujian Boiler and Pressure Vessel Inspection Institute, Yingkou Boiler
Furnace Pressure Vessel Inspection and Research Co., Ltd., Tai'an Special Equipment Inspection and Research Institute, Jining Special Equipment Inspection and Research Institute, Hunan Special
Equipment Inspection and Testing Institute, Liaoning Safety Science Research Institute, Shanghai Power Generation Equipment Complete Design Institute Co., Ltd., Wuxi Zhongzheng
Boiler Co., Ltd., Shanghai Yangnuo Boiler Manufacturing Co., Ltd., Creden Industrial Co., Ltd., Zhejiang Shuangfeng Boiler Manufacturing Co., Ltd., Changzhou Energy
Energy Equipment Co., Ltd., Shandong Huayuan Boiler Co., Ltd., Wuxi Huaguang Industrial Boiler Co., Ltd., Jiangsu Taihu Energy Equipment Co., Ltd.
Qingdao Active Thermal Energy Equipment Co., Ltd., Zhangjiagang Weifu Thermal Energy Co., Ltd., Nanjing Rentaifan Electric Co., Ltd., Zhejiang Maiou
Technology Co., Ltd., Zhejiang Tefu Multi-energy Technology Application Co., Ltd., Kreden Thermal Energy Equipment (Zhejiang) Co., Ltd., Shaanxi Lianbao Boiler Co., Ltd.
Company, Shandong Zhongjie Special Equipment Co., Ltd., Wuxi Fangling Environmental Protection Technology Co., Ltd., Shandong Xilong Petroleum Equipment Co., Ltd., Shandong
Lianmeng Special Equipment Co., Ltd. and Liaoning Changsheng Energy-Saving Boiler Co., Ltd.
The main drafters of this document are. Fan Haibin, Yu Mengquan, Jiang Dongfang, Dong Yizhen, Yin Huikun, Wang Shanwu, Lu Jie, Lei Qinxiang, Li Yixiang, Yang Biying,
Wang Huanan, Xiong Weidong, Li Yishan, Gan Bing, Liu Lei, Zhou Donglei, Zhu Yongzhong, Yao Lu, Peng Lihu, Pan Ruilin, Guo Xuemao, Dong Kai, Feng Wei, Zhao Rongxin,
Qiu Xingtong, Han Peng, Bi Xinsi, Yang Qunfeng, He Zhengyan, Yu Zaihai, Yang Qingsong, Gu Liping, Wang Haiyuan, Huang Jian, Wang Weihua, Wang Yunxiang, Meng Xiangjun,
Tang Hairong, Wang Xining, Zhang Huixiang, Sheng Yijun, Liu Jin, Jiang Zhiming, Liang Yaodong, Wu Linjun, Duan Hongbin, Cao Binbin, Zhang Deli, Hou Bo, Yang Qingyong,
Wang Bin, Deng Liang, Liu Jie, Xu Yixian, Wu Xinshe, Zhang Teng, Deng Yajuan, Zhang Xiwang, Yang Shubao, Wan Jun, Li Yunzhao, and Zhang Jiamin.
The previous versions of this document and the documents it replaces are as follows.
---First issued as GB 1921-1980 in 1980, first revised in 1988, second revised in.2004;
--- In this third revision, the contents of GB/T 3166-2004 "Hot Water Boiler Parameter Series" were incorporated (GB/T 3166-2004
The previous versions are. GB 3166-1982, GB/T 3166-1988).
introduction
Industrial boilers are the main thermal power equipment in my country. They are widely used and in high demand. They play an important role in industrial production and military and civilian life.
With the adjustment of national energy development strategy and the promotion of national policy on air pollution control, the utilization of new energy and renewable energy has driven the industrial
Under the background that my country's economy has entered a new era, industrial boiler enterprises have actively adapted to the
In line with the needs of market and economic development, we have continuously adjusted our product structure, increased our investment in research and development of new products, and accelerated the development of large coal-fired boilers and fuel-fired
The development of gas boilers, biomass boilers, pulverized coal industrial boilers, waste heat boilers, electric heating boilers, etc. has accelerated.
According to the requirements of the Technical Committee's boiler standard system optimization plan, GB/T 1921-2004 "Industrial Steam Boiler Parameter Series",
The two national standards GB/T 3166-2004 "Hot Water Boiler Parameter Series" were integrated and revised into GB/T 1921 "Technical Specifications for Industrial Boilers".
This document proposes the performance, design, manufacture, inspection and testing, installation, commissioning, acceptance and use of industrial boilers.
TSG11 "Boiler Safety Technical Regulations" and TSG91 "Boiler Energy Saving and Environmental Protection Technical Regulations" have basic requirements for safety, energy saving and environmental protection, and are consistent with boiler
This document is the core construction standard and other boiler product standards.
It is one of the important standards of the "Standard for Specific Boiler Construction Methods", which will lead the technological innovation of industrial boilers and provide a basis for further improving the production of industrial boilers.
It plays an important role in product quality and high-quality development of the industry.
Technical Specifications for Industrial Boilers
1 Scope
This document specifies the parameter series and model compilation, performance, materials, design, manufacturing, inspection and testing, painting, packaging, nameplate, etc. of industrial boilers.
Brands, signs and random documents as well as installation, commissioning, acceptance and operation.
This document applies to industrial boilers. Non-power station boilers with rated steam pressure greater than or equal to 3.8 MPa and rated working pressure less than
Hot water boilers and organic heat carrier boilers with a rated thermal power of 0.1MPa or greater and equal to 0.1MW shall be used for reference.
Note. The pressure values mentioned in this document refer to gauge pressure.
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 1576 Industrial boiler water quality
GB 2894 Safety signs and their use guidelines
GB/T 2900.48 Electrical terminology - Boiler
GB 3096 Acoustic Environment Quality Standard
GB/T 3836 (all parts) Explosive atmospheres
GB 4053 (all parts) Safety requirements for fixed steel ladders and platforms
GB/T 10180 Thermal performance test procedures for industrial boilers
GB/T 10184 Performance test procedures for power station boilers
GB/T 10863 Thermal test methods for flue-type waste heat boilers
GB 11174 Liquefied petroleum gas
GB 12348 Industrial Enterprise Boundary Ambient Noise Emission Standard
GB 13223 Emission Standard of Air Pollutants from Thermal Power Plants
GB 13271 Boiler Air Pollutant Emission Standard
GB/T 13306 Signage
GB/T 13612 Artificial gas
GB 15605 Dust Explosion Pressure Venting Specification
GB/T 16507 (all parts) Water tube boilers
GB/T 16508 (all parts) Shell boilers
GB 16543 Safety regulations for explosion prevention of bituminous coal injection systems in blast furnaces
GB/T 16839.1 Thermocouples Part 1.Electromotive force specifications and tolerances
GB/T 17410 Organic heat carrier furnace
GB 17820 Natural Gas
GB/T 18342 Commercial coal quality chain furnace coal
GB 18485 Pollution Control Standard for Incineration of Municipal Waste
GB/T 18750 Domestic waste incinerators and waste heat boilers
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