1. Reasons for the damage of the sealing surface of the pneumatic butterfly valve
1. In the process of valve opening and closing, normal wear caused by the relative friction between the valve seat sealing surface and the butterfly plate.
2. But there is qualitative erosion and corrosion.
3. There are particles or debris in the pipeline and medium, and the debris is trapped by the butterfly plate and the valve seat during the switching process and the sealing surface is damaged.
4. There are also damages caused by improper protection during transportation and installation.
5. Improper selection or improper operation or improper installation. The damage to the sealing surface of the pneumatic butterfly valve may be caused by one or a combination of several reasons.
