1. The seal of stainless steel pneumatic butterfly valve can be replaced, and the seal can reach two-way seal firmly.

2. The pneumatic butterfly valve with flange is simple, simple and easy to disassemble and repair, and can be installed at any position.

3. The structure of the wafer pneumatic butterfly valve is simple and compact, the operating torque is small, and the 90 ° rotary opening is agile.

4. The connection between butterfly plate and stem of soft seal pneumatic butterfly valve adopts the pin free structure, which overcomes the possible internal leakage point.

5. The outer circle of the butterfly plate of the hard seal pneumatic butterfly valve adopts the spherical shape, which improves the sealing function and prolongs the service life of the valve. It can still keep zero leakage when it is opened and closed more than 50000 times under pressure.

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

7. The butterfly plate of pneumatic butterfly valve can be coated according to the user's requirements, such as nylon or polytetrafluoroethylene.

8. Hard seal butterfly valve can be planned as flange connection and clamp connection.