Butterfly valve refers to the closing part (valve disc or butterfly plate) as a disc, around the valve shaft rotation to reach the opening and closing of a valve, in the pipe mainly cut off and thr...
Gate valves and butterfly valves in the pipeline are used to play the role of switching, regulating flow. Of course, there is still a method in the selection process of butterfly valves and gate va...
Gate valve is a more common general valve, widely used, mainly used in water conservancy, metallurgy and other industries, its wide range of performance has been recognized by the market, TWS in th...
In the 30s, the butterfly valve was invented in United States, introduced to the Japan in the 50s, and was widely used in Japan in the 60s, and it was promoted in China after the 70s. At present, b...
1. Clean the sealing surface of the butterfly valve and the dirt in the pipeline.
2. The inner port of the flange on the pipeline must be aligned and press the rubber sealing ring of the butterfly ...
Valve sealing material is an important part of valve sealing. What are the valve sealing materials? We know that valve sealing ring materials are divided into two categories: metal and non-metal. T...