Drafting standards_Hangzhou Huahui Valve Co., Ltd.

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Serial Number	Standard Name	Standard Type	Standard
1	Power station temperature reducing valve	National Standard	GB/T10868-2018
2	Qualification of Surfacing Welding Process for Valve Sealing Surface	National Standard	GB/T22652-2019
3	Overvoltage protection safety device General data	National Standard	GB/T36588-2018
4	Valve term	National Standard	GB/T21465-2008
5	Steel pressure relief valve for petrochemical industry	National Standard	GB/T24920-2010
6	Size determination, selection and installation of pressure relief valve	National Standard	GB/T24921.1-2010
6	Part 1: Size determination and selection	National Standard	GB/T24921.1-2010
7	Size determination, selection and installation of pressure relief valve Part 2: Installation	National Standard	GB/T24921.2-2010
7		National Standard	GB/T24921.2-2010
8	Power station plugging valve	National Standard	GB/T29462-2012
9	Pilot operated safety valve	National Standard	GB/T28778-2012
10	Temperature and pressure reduction device	Industry Standard	NB/T47033-2013
11	Temperature-pressure control valve	Industry Standard	JB/T13877-2020
12	Stop valve for discharge	Industry Standard	JB/T11489-2013
13	Oxygen valve technical conditions	Industry Standard	JB/T12955-2016
14	Stop valve for oxygen	Industry Standard	JB/T10530-2018
15	Compilation method of power station valve model	Industry Standard	NB/T47037-2013
16	Power station valve	Industry Standard	NB/T47044-2014
17	Technical requirements for pressure-bearing steel forgings for thermal power supercritical and ultra-supercritical valves	Industry Standard	JB/T12000-2014
18	Thermal power supercritical and ultra-supercritical parameter valves General requirements	Industry Standard	JB/T12001-2014
19	Power station safety valve	Industry Standard	NB/T47063-2017