National Patent_Hangzhou Huahui Valve Co., Ltd.

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No	patent name	Patent type	Application country	Patent No	Authorization date
1	A temperature and pressure reducing valve	invention	China	ZL201810437530.0	2020.08.04
2	A vertical desuperheating system	invention	China	ZL201210058309.7	2013.08.07
3	A steam desuperheating system	invention	China	ZL201410782171.4	2016.08.17
4	A safety valve	invention	China	ZL201510296648.2	2017.07.04
5	Regulating valve and engineering machinery with the regulating valve	invention	China	ZL201610196911.5	2018.02.09
6	A pressure relief system	invention	China	ZL201510272249.2	2018.08.24
7	Control valve	invention	China	ZL201710031309.0	2019.02.19
8	A high-pressure regulating valve	invention	China	ZL201711140473.1	2019.06.04
9	An easy-to-adjust temperature and pressure reducing valve	invention	China	ZL201810438439.0	2019.08.30
10	Pressure reducing valve	utility model	China	ZL201120496563.6	2011.12.02
11	Temperature and pressure reduction system	utility model	China	ZL201120497024.4	2011.12.02
12	Pressure reducing valve and temperature reducing and pressure reducing device	utility model	China	ZL201220083201.9	2012.03.07
13	Temperature reducing valve	utility model	China	ZL201220604576.5	2012.11.14
14	High pressure difference feed water regulating valve	utility model	China	ZL201220602306.0	2012.11.14
15	Temperature and pressure reducing device	utility model	China	ZL201220604546.4	2012.11.14
16	Small-caliber needle-shaped regulating valve	utility model	China	ZL201320621666.X	2013.10.09
17	Sleeve type regulating valve	utility model	China	ZL201320620721.3	2013.10.09
18	High-voltage direct current type safety overflow valve	utility model	China	ZL201320621808.2	2013.10.09
19	A shut-off valve with bypass oxygen	utility model	China	ZL201420178416.8	2014.04.14
20	Wafer type ash valve	utility model	China	ZL201420177678.2	2014.04.14
21	A kind of pressure reducing valve	utility model	China	ZL201420237513.X	2014.05.09
22	A steam desuperheating system	utility model	China	ZL201420800081.9	2014.12.16
23	Temperature reducing valve	utility model	China	ZL201420811056.0	2014.12.17
24	A steam regulating valve	utility model	China	ZL201420805880.5	2014.12.17
25	A kind of pressure reducing valve	utility model	China	ZL201520365109.5	2015.05.29
26	High temperature and high pressure gate valve	utility model	China	ZL201520018262.0	2015.01.09
27	Forged welding self-relief gate valve	utility model	China	ZL201520017599.X	2015.01.09
28	A kind of regulating valve	utility model	China	ZL201521117206.9	2016.05.25
29	Pressure reducing valve	utility model	China	ZL201521135827.X	2016.05.25
30	Regulating valve and engineering machinery with the regulating valve	utility model	China	ZL201620262162.7	2016.08.10
31	Boiler spraying water temperature reducing device	utility model	China	ZL201621383999.3	2017.07.14
32	A kind of shut-off valve	utility model	China	ZL201621384343.3	2017.07.14
33	Removable sealing structure	utility model	China	ZL201720401858.8	2017.11.14
34	An atomizing nozzle	utility model	China	ZL201721704598.8	2018.07.06
35	Temperature and pressure reducing device	utility model	China	ZL201721705719.0	2018.07.20
36	Water supply regulating valve	utility model	China	ZL201721891427.0	2018.08.14
37	A kind of gate valve	utility model	China	ZL201721891250.4	2018.08.24
38	High temperature and high pressure quick opening and closing valve	utility model	China	ZL201820047300.9	2018.08.28
39	An empty exhaust check valve	utility model	China	ZL201820047574.8	2018.08.28
40	Temperature and pressure reducing device	utility model	China	ZL201721886392.1	2019.03.22
41	An emptying stop valve	utility model	China	ZL201721886095.7	2019.03.26
42	Membrane globe valve for hydrogen	utility model	China	ZL201822032642.6	2019.09.20
43	High pressure angle cut-off throttle valve	utility model	China	ZL201822032635.6	2019.09.20
44	A supercritical full-volume safety valve	utility model	China	ZL201920259127.3	2019.10.15
45	Rotary guide type high pressure differential feed water regulating valve	utility model	China	ZL201920089216.8	2019.12.06
46	An ultra-supercritical unit and its high-pressure heater leakage emergency treatment system	utility model	China	ZL201920258254.1	2019.11.08
47	Inlet valve with forged and welded structure	utility model	China	ZL202020340708.2	2020.11.10
48	A kind of quick opening and closing safety valve	utility model	China	ZL202020804332.6	2020.12.04
49	Air cannon block clearing and flow aid device	utility model	China	ZL202020177498.X	2020.09.29
50	Electric inlet valve	utility model	China	ZL202020340272.7	2020.11.10
51	Sub-high pressure angle type temperature reducing valve	utility model	China	ZL202020340890.1	2021.01.05
52	A kind of quick opening and closing solenoid valve	utility model	China	ZL202020340474.1	2021.01.05
53	Full-volume safety valve elastic disc	appearance	China	ZL201430063368.3	2014.03.25
54	Lower valve cover (50Y965Y-P54100V)	appearance	China	ZL201430063337.8	2014.03.25
55	Upper valve cover (50Y965Y-P54100V)	appearance	China	ZL201430063341.4	2014.03.25
56	Stem nut	appearance	China	ZL201430063111.8	2014.03.25
57	Automatic adjustable spring atomizer	appearance	China	ZL201430063333.X	2014.03.25