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Hangzhou Kaiwei Valve Group Co., LTD
Tel:+86-0571-88950660
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betway必威登录:The four national valve standards will be implemented on May 1, 2020

time:2019/11/16from:Hangzhou Kaiwei Valve Group Co., LTD

Recently, the state administration for market supervision and administration of China (Standardization Administration of China) approved and issued 343 national standards and 2 revision orders of national standards, including "dimensions, product geometric specifications (GPS) and tolerance values of radial bearing stop groove and stop ring".

No
Standard coding Standard name Substitute standard number Implementation date
1
GB/T 12234-2019

Steel gate valve with stud to cover for petroleum and natural gas

GB/T 12234-2007 2020-5-1
2
GB/T 22652-2019 Surfacing welding process evaluation of valve sealing surface GB/T 22652-2008 2020-5-1
3
GB/T 24925-2019 Technical conditions of cryogenic valves GB/T 24925-2010 2020-5-1
4
GB/T 38202-2019 Installation, use and maintenance of all welded valves 2020-5-1
下一条:阀门与执行机构的认证与测试
上一条:4项阀门国家标准将于2020年5月1日实施

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Address: 12F/B3 Shuangcheng International Mansion, Binjiang District, Hangzhou, Zhejiang, China P.C 310051

Tel: +86-571-88950660 Fax: +86-571-88950550

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