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Located in Wenzhou City where a hometown of valve in China, Wenzhou Ruixin Valve Co., Ltd. has designed,manufactured,and sold various valves worldwide as the OEM for a number of different brands.
The factory produce valves include Cast Steel & Forge Steel BALL VALVES,GATE VALVES,GLOBE VALVE,CHECK VALVES,BUTTERFLY VALVE &STRAINER for power station,petroleum, chemical,natural gas,pharmaceutical industries.
At factory, the Quality Assurance Program meets or exceeds the requirements of API-6D, CE, and ISO9001:2008, You are assured of valve solutions on all valves we sold.



How to do API Gate valve maintenance procedures

1. Valve disintegration 1.1 Remove the fixing bolts of the upper frame of the bonnet, unscrew the nuts of the four bolts on the lifting bonnet, turn the valve stem nut counterclockwise to make the valve frame separate from the valve body, and then use a lifting tool to hoist the frame down and pu...

Driven by industrialization, valve castings continue to open up the market. With the development of valve manufacturing technology, the application fields of valve castings are also expanding. However, due to the particularity of valve castings, m...
1. The form of valve corrosion There are two forms of corrosion of metal valves, namely uniform corrosion and localized corrosion. The rate of uniform corrosion can be evaluated by the annual average corrosion rate. Metal materials, graphite, g...