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...
Butterfly valve is a kind of valve, is installed on a pipe, used to control the circulation of medium in a pipe. Butterfly valve is characterized by a simple structure, light weight, the components...
(1) The valve does not operate.
The fault phenomenon and its causes are as follows:
1. No source of gas.① The air source is not open, ② due to the water content of the air source ice in winter, res...
Material Selection
Low-End Valves
Body/Disc Materials: Typically use low-cost metals like cast iron or unalloyed carbon steel, which may lack corrosion resistance in harsh environments.
Sealing ...
Rubber Sealing Check valves can be classified according to their structure and installation method as follows:
Swing Check Valve: The disc of a swing check valve is disc-shaped and rotates around t...