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GB/T 13927-2022: Industrial valves - Pressure testing Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 13927: Historical versions
Similar standardsGB/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/GBT13927-2022GB 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 ContentsForeword... 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... 18ForewordThis 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 ScopeThis 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 referencesThis document has no normative references.3 Terms and definitionsThe 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 testIf 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 requirementsThe 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 methodsFor 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 criteriaThe 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. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 13927-2022 be delivered?Answer: The full copy PDF of English version of GB/T 13927-2022 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 13927-2022_English with my colleagues?Answer: Yes. 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