What is the working principle of butterfly valve?

The butterfly plate is driven by the valve stem. If it turns 90°, it can complete one opening and closing. By changing the deflection angle of the disc, the flow of the medium can be controlled.

Working conditions and medium: Butterfly valve is suitable for conveying various corrosive and non-corrosive fluids in engineering systems such as producer, coal gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical smelting and power generation environmental protection, building water supply and drainage, etc. On the pipeline of the medium, it is used to adjust and cut off the flow of the medium.

Butterfly valve is a kind of valve that uses a disc opening and closing member to reciprocate about 90° to open, close or adjust the flow of the medium. Butterfly valve not only has simple structure, small size, light weight, low material consumption, small installation size, small driving torque, simple and fast operation, but also has good flow regulation function and closing sealing characteristics at the same time. One of the faster valve varieties. Butterfly valves are widely used. The variety and quantity of its use are still expanding, and it is developing towards high temperature, high pressure, large diameter, high sealing performance, long life, excellent adjustment characteristics, and multi-function of one valve. Its reliability and other performance indicators have reached a high level.

With the application of chemically resistant synthetic rubber on the butterfly valve, the performance of the butterfly valve has been improved. Since synthetic rubber has the characteristics of corrosion resistance, erosion resistance, dimensional stability, good resilience, easy forming, and low cost, synthetic rubber with different properties can be selected according to different use requirements to meet the working conditions of butterfly valves.