Pneumatic butterfly valve is often used as a cut-off valve in use. The valve is opened and closed by the rotation of the butterfly plate. It is often used in large and medium-caliber pipelines. Common pneumatic valves include stainless steel pneumatic butterfly valves, hard seal butterfly valves, soft seal butterfly valves, carbon steel butterfly valves, etc. Each type of butterfly valve has its own characteristics. So, how many do you know about the characteristics of pneumatic butterfly valves?

1. The stainless steel pneumatic butterfly valve seal can be replaced, and the seal is reliable to achieve two-way sealing.

2. The flanged pneumatic butterfly valve is small and light, easy to disassemble and maintain, and can be installed at any position.

3. The structure of the wafer-type pneumatic butterfly valve is simple and compact, the operating torque is small, and the 90 ° rotation is quickly opened.

4. The connection between the butterfly plate and the stem of the soft-sealed pneumatic butterfly valve adopts a pinless structure, which overcomes the possible internal leakage points.

5. The outer circle of the butterfly plate of the hard-sealed pneumatic butterfly valve adopts a spherical shape, which improves the sealing performance and prolongs the service life of the valve. It can still maintain zero leakage even when the pressure is opened and closed more than 50,000 times.

6. The flow characteristics of the pneumatic butterfly valve tend to be straight, and the adjustment performance is good.

7. The butterfly plate of pneumatic butterfly valve can be spray coated according to user requirements, such as nylon or PTFE.

8. Hard seal butterfly valve can be designed as flange connection and wafer connection.