Pneumatic rubber butterfly valve  is a conventional butterfly valve first selected by the pipeline. It has simple structure, small flow resistance coefficient, flow characteristics tend to a straight line, and will not retain debris. And light weight, easy installation, drive torque is small advantages. This valve can be used for both cutting the medium and regulating the flow of the medium. According to the user requirements, the driving device can adopt manual, electric, pneumatic and other ways respectively. Choose the parts of different materials, equipped with the sealing ring of different materials, can adapt to different media, working conditions, so that the cost and performance to achieve the best effect.

1, small and light, easy to disassemble and repair, and can be installed in any position.

2. The structure is simple, compact, small operating torque, 90° rotation to open quickly.

3, the flow characteristics tend to be in a straight line, with good adjustment performance.

4. The connection between the butterfly plate and the valve rod adopts the pin structure to overcome the possible internal leakage point.

5. The outer circle of the butterfly board adopts spherical shape, which improves the sealing performance and extends the service life of the valve, and still maintains zero leakage at more than 50,000 times with pressure.

6, the seal can be replaced, and the seal is reliable to achieve two-way sealing.

7, butterfly plate can be sprayed according to user requirements, such as nylon or polytetrafluoride.

8, the valve can be designed to flange connection and clip connection.

9, the drive mode can be selected by manual, electric or pneumatic.

Design and manufacture: API 609, MSS SP-67, GB / T 12238

Structure length: ASME B16.10, GB / T 12221

Connected flange: ASME B16.5, GB / T 9112~9124, HG / T 20592, HG / T 20615, JB / T 79

Inspection and test: API 598, GB / T 26480