GB/T 13927-2022 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 13927-2022 | English | 215 |
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Industrial valves - Pressure testing
| Valid |
| GB/T 13927-2008 | English | 85 |
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Industrial valves -- Pressure testing
| Obsolete |
| GB/T 13927-1992 | English | 359 |
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Pressure testing for general purpose valves
| Obsolete |
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GB/T 13927-2022: Industrial valves - Pressure testing---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/GBT13927-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 23.060.01
CCS J 16
Replacing GB/T 13927-2008
Industrial valves - Pressure testing
(ISO 5208.2015, Industrial valves – Pressure testing of metallic valves, MOD)
Issued on. DECEMBER 30, 2022
Implemented on. JULY 01, 2023
Issued by. State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 6
2 Normative references... 6
3 Terms and definitions... 6
4 Additional conditions for pressure test... 8
4.1 Buyer inspection... 8
4.2 Witness test... 8
4.3 Test selection items... 8
5 Pressure test requirements... 8
5.1 Safety tips... 8
5.2 Test location... 9
5.3 Test equipment... 9
5.4 Pressure measuring equipment... 9
5.5 Valve shell surface... 9
5.6 Test fluid... 9
5.7 Test pressure... 10
5.8 Pressure test items... 10
5.9 Duration of test pressure... 12
6 Test methods... 12
6.1 Shell test... 12
6.2 Back closure test... 13
6.3 Sealing test... 13
7 Test acceptance criteria... 14
7.1 Shell test... 14
7.2 Back closure test... 15
7.3 Sealing test... 15
7.4 Certificate of conformity... 15
Appendix A (Informative) Comparison of structural number between this document and
ISO 5208.2015... 16
Appendix B (Normative) Equivalent nominal size... 18
Foreword
This document was drafted in accordance with the provisions of GB/T 1.1-2020
"Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents".
This document replaces GB/T 13927-2008 "Industrial valves - Pressure testing".
Compared with GB/T 13927-2008, in addition to structural adjustments and editorial
changes, the main technical changes are as follows.
a) ADD an "Important notice" requirement between the title and scope of this
document;
b) ADD the terms and definitions of “back closure test”, “design differential pressure”
and “visually detectable leakage”; DELETE the terms and definitions of
“allowable working differential pressure” and “test fluid temperature” (see
Chapter 3; Chapter 2 of the 2008 edition);
c) ADD the witness test requirements (see 4.2);
d) ADD test pressure fluctuation requirements (see 5.7.4);
e) CHANGE the test item requirements, adding the high-pressure gas test items and
diaphragm valve test items, changing the pressure test item requirements for
butterfly valves, which are divided into eccentric butterfly valve requirements and
centerline butterfly valves (see Table 1 in 5.8.3; Table 1 in 4.8.2 of the 2008
edition);
f) CHANGE the requirements for sealing test and inspection of main types of valves
(see 6.3.2; 5.3.2 of the 2008 edition).
This document modifies and adopts ISO 5208.2015 "Industrial valves - Pressure testing
of metallic valves".
Compared with ISO 5208.2015, this document has many structural adjustments. See
Appendix A for a list of structural number comparisons between this document and ISO
5208.2015.
The technical differences between this document and ISO 5208.2015 and their reasons
are as follows.
a) DELETE the terms and definitions of "test fluid temperature", "DN/NPS",
"PN/Class"; ADD the terms and definitions of "back closure test", which appears
in the document (see 3.3);
b) CHANGE the requirements for pressure measurement equipment (see 5.4), to
meet the needs of practical applications in China;
c) ADD the fluctuation requirements of test pressure (see 5.7.4), to meet the needs
of practical applications in China;
d) ADD the test item requirements for cast iron valves (see 5.8.2), to meet the needs
of practical applications in China;
e) INTEGRATE the contents noted in Tables 1 and 3 into the Tables and clauses (see
5.8 and 6.3.2).
This document has made the following editorial changes, as compared with ISO
5208.2015.
- DELETE Note 3 in Table 3 regarding "Plug gasket material requirements".
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 was proposed by China Machinery Industry Federation.
This document shall be under the jurisdiction of the National Valve Standardization
Technical Committee (SAC/TC 188).
The drafting organizations of this document. Hefei General Machinery Research
Institute Co., Ltd., Hefei General Mechanical and Electrical Products Testing Institute
Co., Ltd., Shenzhen Quality and Safety Inspection and Testing Institute, Chengdu
Chenggao Valve Co., Ltd., Chaoda Valve Group Co., Ltd., Zhejiang Petrochemical
Valve Co., Ltd., Jiangsu Suyan Valve Machinery Co., Ltd., Zhejiang Bethel Technology
Co., Ltd., Yuanda Valve Group Co., Ltd., Jiangsu Shentong Valve Co., Ltd., Jiangsu
Chenggong Valve Technology Co., Ltd., Anhui Tongdu Fluid Technology Co., Ltd., Kai
Ruite Valve Co., Ltd., Baoyi Group Co., Ltd., Shanghai Guanlong Valve Energy Saving
Equipment Co., Ltd., Ningbo Jackron Precision Co., Ltd., Shenjiang Valve Co., Ltd.,
Ningbo Amico Copper Valve Co., Ltd., Zhejiang Province Pump and Valve Products
Quality Inspection Center, Zhejiang Yongyuan Valve Co., Ltd., Sichuan Jingkong Valve
Manufacturing Co., Ltd., Zhejiang Linuo Fluid Control Technology Co., Ltd., Jiangnan
Valve Co., Ltd., Zhuzhou Nanfang Valve Co., Ltd., Chengde High and Medium
Pressure Valve and Pipe Fittings Group Co., Ltd., Shaanxi Aerospace Pump and Valve
Technology Group Co., Ltd., Xuanda Industrial Group Co., Ltd., Xi'an Pump and Valve
General Factory Co., Ltd., Sichuan Feiqiu (Group) Co., Ltd., Zhejiang Deka Control
Valve and Instrument Co., Ltd., Zhejiang Wonderkai Fluid Equipment Technology Co.,
Ltd., Ningbo Ri'an Valve Co., Ltd., Suzhou Antwei Valve Co., Ltd., Zhejiang Ruige
Copper Co., Ltd., Beijing Building Materials Inspection Institute Co., Ltd., Zhejiang
Hualong Jushui Technology Co., Ltd., Jitai Valve Group Co., Ltd., Zhejiang Tingyu
Fluid Equipment Co., Ltd., Jinggong Valve Group Co., Ltd., Lianggong Valve Group
Co., Ltd., Guogong Holding Group Co., Ltd., Wuxi Skaur Automatic Control
Equipment Co., Ltd., Jiangsu Shengtai Valve Co., Ltd., Zhejiang Su Ming Valve Co.,
Ltd., Zhejiang Benigo Fluid Control Co., Ltd., Zhejiang Etz Valve Technology Co., Ltd.,
Bohai Valve Group Co., Ltd., Yonglong Valve Co., Ltd., Bande Valve Technology Co.,
Ltd., Chengdu Chuanli Intelligent Fluid Equipment Co., Ltd., Shanghai Yaao Valve Co.,
Ltd., Hangzhou Chunjiang Valve Co., Ltd., Guangzhou Jiafusi Valve Manufacturing
Co., Ltd., Wuhu Jinmao Fluid Technology Co., Ltd., Henan Saifu Special Equipment
Testing Co., Ltd., Zhejiang Lishui Technology Co., Ltd., Zhejiang Fansheng Fluid
Control Co., Ltd., Zhejiang Dabolin Valve Co., Ltd., Zhejiang Odehua Technology Co.,
Ltd., Dongbao Valve Co., Ltd., Zhejiang Hengjie Copper Co., Ltd., Zhejiang Jiada Fluid
Control Co., Ltd., Zhejiang Haoji Fluid Technology Co., Ltd., Zhejiang Yuquan Fluid
Technology Co., Ltd., Jinbo Valve Group Co., Ltd.
The main drafters of this document. Wang Xiaojun, Wu Huaikun, Zhang Jianbin, Sun
Qi, Zeng Pinqi, Wang Ce, Wu Huaimin, Wang Yin, Wu Shoijing, Feng Yuzhu, Chen
Lin, Chen Shuanghe, Yan Jie, Chen Yong, Zhang Xiaozhong, Liu Fengnian, Yan
Rongjie, Ye Jijun, Zheng Xuezhen, Sun Fengwei, Li Huanyu, Gu Lidong, Peng Yulin,
Huang Zilong, Huang Jing, Wang Lijun, Lin Zhongcan, Wang Qiang, Fu Yanhe, Zhu
Yongping, Huang Jianwei, Cha Zhao, Wu Haifeng, Li Yufei, Li Zhenkun, Wang
Yongchao, Jia Zhengye, Huang Binbin, Gao Kaike, Wang Xuepeng, Zhang Peng, Yu
Jinli, Huang Bin, Yan Tao, Su Zongyao, Liu Weili, Jiang Binlong, Chen Liyi, Yu Jinxian,
Xia Xuchao, Wan Jianhua, Liu Liyan, Chai Lu, Wu Fuquan, Sun Xiong, Li Wenguang,
Huang Hui, Zheng Lin, Lin Hailin, Lin Yong, Liu Yu, Wang Gaoneng, Zhong Jiahai,
Lin Ji, Wang Jianhong, Mao Tonglian.
This standard replaces the standard previously issued as follows.
- It was first published as GB/T 13927-1992 in 1992; it was first revised in 2008.
- This is the second revision.
Industrial valves - Pressure testing
Warning. This document does not include all safety matters during the test.
Personnel using this document shall be familiar with the test procedures AND have
the responsibility to take appropriate safety and health measures and comply with
national laws and regulations, especially during high-pressure gas tests.
1 Scope
This document specifies pressure test additional conditions, pressure test requirements,
test methods, test acceptance criteria for industrial valves.
This document applies to pressure testing of metal valves.
2 Normative references
This document has no normative references.
3 Terms and definitions
The following terms and definitions apply to this document.
During the test, the gauge pressure of the test fluid, which is endured by the inner
cavity of the valve.
4 Additional conditions for pressure test
If the buyer performs a pressure test on a stock valve, the stock valve may be tested,
without removing paint or coating from the shell surface.
When the order contract requires it, the test of the "optional" items in Table 1 can be
carried out.
5 Pressure test requirements
The pressure test equipment shall not exert external forces, that would affect the valve
test results. If an end pair clamping test device is used, the valve manufacturer shall be
able to ensure that the test device does not affect the test results of the sealing
performance of the valve being tested.
6 Test methods
For valves with an upper sealing structure, close the inlet and outlet of the valve.
Fill the valve shell with liquid test medium. Drain the air in the valve body cavity. Use
the valve operating mechanism, to open the valve to the fully open position. Loosen the
packing gland bolts.
7 Test acceptance criteria
The valve manufacturer shall provide the buyer with a certificate of conformity,
certifying that the valve product complies with this document.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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