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GB/T 26334-2023: Fittings for installation of gas meters
Status: Valid GB/T 26334: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 26334-2023 | English | 429 |
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Fittings for installation of gas meters
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GB/T 26334-2023
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| GB/T 26334-2010 | English | 679 |
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Fittings for installation of diaphragm gas meters
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GB/T 26334-2010
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PDF similar to GB/T 26334-2023
Basic data | Standard ID | GB/T 26334-2023 (GB/T26334-2023) | | Description (Translated English) | Fittings for installation of gas meters | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q82 | | Classification of International Standard | 75.180.30, 23.040.80, | | Word Count Estimation | 21,266 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2024-06-01 | | Older Standard (superseded by this standard) | GB/T 26334-2010 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 26334-2023: Fittings for installation of gas meters---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 75:180:30;23:040:80
CCSQ82
National Standards of People's Republic of China
Replace GB/T 26334-2010
Gas meter installation accessories
Published on 2023-11-27
2024-06-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Category 2
5 Design and Structure 3
5:1 Materials 3
5:2 Interface 3
5:3 Anti-tamper function 3
6 Technical requirements 3
6:1 Dimensions and tolerances 3
6:2 Surface quality 3
6:3 Thread 3
6:4 Nut strength 4
6:5 Liner strength 4
6:6 Low pressure leakage rate (gasket) 4
6:7 Sealing 5
6:8 Salt spray resistance 5
7 Test methods 5
7:1 Test conditions 5
7:2 Dimensions and tolerances 5
7:3 Surface quality 5
7:4 Thread 5
7:5 Nut strength 5
7:6 Liner strength 5
7:7 Low pressure leakage rate (gasket) 6
7:8 Sealing 6
7:9 Salt spray resistance 6
8 Inspection Rules 6
8:1 Inspection classification 6
8:2 Type inspection 6
8:3 Factory inspection 7
9 Marking, packaging, transportation and storage 7
9:1 Logo 7
9:2 Packaging 7
9:3 Transport 7
9:4 Storage 7
Appendix A (normative) Gasket material for external joint set 8
Appendix B (Normative) Dimensions and structure of external connector set 9
Appendix C (Normative) Structure and Dimensions of Flange Group 14
Reference 16
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
This document replaces GB/T 26334-2010 "Diaphragm Gas Meter Installation Accessories": Compared with GB/T 26334-2010, except for structural adjustments
In addition to editorial changes, the main technical changes are as follows:
a) The scope of application of this document has been changed (see Chapter 1);
b) Supplemented and improved some terms and definitions (see Chapter 3);
c) Added product classification (see Chapter 4);
d) Added stainless steel material and changed the material requirements for gaskets (see 5:1, Appendix A, Chapter 4 of the:2010 edition);
e) Added description about the interface (see 5:2);
f) Added the content of anti-tamper function (see 5:3);
g) The dimensions and specifications of the installation accessories have been changed (see 6:1:1, Appendix B, Appendix C, 5:1:1, Appendix A, Appendix B of the:2010 edition);
h) Delete the torque requirements for pipe joints (see 5:4 of the:2010 edition);
i) Increased nut strength requirements (see 6:4);
j) Added requirements for low-pressure leakage rate of gaskets (see 6:6):
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is proposed by China Machinery Industry Federation:
This document is under the jurisdiction of the National Industrial Process Measurement Control and Automation Standardization Technical Committee (SAC/TC124):
This document was drafted by: Chongqing Qianwei Watch Industry Co:, Ltd:, Chongqing Qianwei Technology Group Co:, Ltd:, Shanghai Industrial Automation Instrument Research
Institute Co:, Ltd:, Hebei Institute of Metrology Supervision and Inspection, Beijing Gas Group Co:, Ltd:, Liaoning Institute of Metrology, Guangzhou
Energy Testing Institute, Chongqing Institute of Metrology and Quality Inspection, Beijing Institute of Metrology and Inspection, Zhejiang Institute of Metrology, Shenzhen Institute of Metrology
Shenzhen Ruili Technology Co:, Ltd:, Chengdu Qianjia Technology Co:, Ltd:, Rongcheng Yuxiang Industrial Co:, Ltd:, Chongqing Shancheng Gas Equipment
Co:, Ltd:, Shanghai Zhenlan Instrument Technology Co:, Ltd:, Shenzhen Jiexian Digital Technology Co:, Ltd:, Shuifahangyuxing IoT Technology
(Liaoning) Co:, Ltd:, Langfang Xinao Intelligent Technology Co:, Ltd:, Chengdu Qinchuan Internet of Things Technology Co:, Ltd:, Jinka Intelligent Group (Hangzhou)
State) Co:, Ltd:, Zhejiang Chint Instrument Co:, Ltd:, Ningbo Yunhua Valve Co:, Ltd:
The main drafters of this document: Zhang Lujun, Zhang Yong, Li Jianghua, Niu Lina, Sun Yuxin, Zhao Qifeng, Lu Ke, Zhang Yuanming, Xiao Honglian, Wang Jianing,
Chen Guo, Zhang Jun, Zheng Jia, Jing Lihua, Yan Chaodong, Yin Daiqiang, Tian Penghe, Peng Lei, Yang Youtao, Chen Shangshun, Wang Zifeng, Zheng Yue, Zou Ziming, Xu Yizhou,
Wang Jifeng, Chen Jian, Jiang Xinren, Yang Wenfeng, Tang Yongqiang, Zheng Shuiyun, Chen Zhou, Feng Zhilong:
The previous versions of this document and the documents it replaces are as follows:
---First published in:2010 as GB/T 26334-2010 "Diaphragm Gas Meter Installation Accessories";
---This is the first revision:
Gas meter installation accessories
1 Scope
This document specifies the installation accessories (hereinafter referred to as installation accessories) of gas meters such as diaphragm gas meters, ultrasonic gas meters, and thermal mass gas meters:
The classification, design and structure, technical requirements, inspection rules, marking, packaging, transportation and storage requirements, and the corresponding test methods are described:
This document applies to the design, manufacture and inspection of gas meter installation accessories with a maximum working pressure not exceeding 0:1MPa:
Note: Unless otherwise stated, the pressures mentioned in this document refer to relative atmospheric pressure (gauge pressure):
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document:
GB/T 196 Basic dimensions of ordinary threads
GB/T 197 Ordinary thread tolerances
GB/T 528 Determination of tensile stress and strain properties of vulcanized rubber or thermoplastic rubber
GB/T 531:2 Test method for indentation hardness of vulcanized rubber or thermoplastic rubber Part 2: Portable rubber international hardness tester method
GB/T 1690 Test method for liquid resistance of vulcanized rubber or thermoplastic rubber
GB/T 1804-2000 General tolerances Tolerances for linear and angular dimensions without tolerances noted
GB/T 1958 Product Geometric Specification (GPS) Geometric Tolerance Detection and Verification
GB/T 2828:1-2012 Enumeration sampling inspection procedures Part 1: Batch-by-batch inspection sampling retrieved by acceptance quality limit (AQL)
plan
GB/T 3512 Hot air accelerated aging and heat resistance test of vulcanized rubber or thermoplastic rubber
GB/T 6031 Determination of hardness of vulcanized rubber or thermoplastic rubber (10IRHD~100IRHD)
GB/T 7306:1 55° sealed pipe threads Part 1: Cylindrical internal threads and conical external threads
GB/T 7307 55° non-sealed pipe thread
GB/T 7759 (all parts) Determination of compression set of vulcanized rubber or thermoplastic rubber
GB/T 7762 Static tensile test for ozone cracking resistance of vulcanized rubber or thermoplastic rubber
GB/T 9124:1-2019 Steel pipe flanges Part 1: PN series
GB/T 9125:1-2020 Fasteners for steel pipe flange connections Part 1: PN series
GB/T 10125-2021 Artificial atmosphere corrosion test salt spray test
GB/T 30789:3-2014 Evaluation of aging of paint and varnish coatings Number and size of defects and uniform change in appearance
Marking of degree of rust Part 3: Assessment of rust grade
HG/T 20606-2009 Non-metallic flat gaskets for steel pipe flanges (PN series)
3 Terms and definitions
The following terms and definitions apply to this document:
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