On the structure of the wafer butterfly valve and other slightly will be A little difference, especially in the butterfly plate and the valve stem axis offset between sealing surface on A, there is A size in the valve body and open channel axis offset A size B, eccentric butterfly plate of the sealing surface is better than single faster from the valve seat sealing surface, in the long radius of the larger semicircle, butterfly plate seal face turning trajectory tangent to the will and the valve seat sealing surface to form A theta Angle, the instant when the butterfly plate sealing surface can be completely from the valve seat sealing surface, so that the butterfly valve in the process of opening and closing, the relative mechanical wear between disc and seat sealing surface, squeezing corner schedule shorter, When the butterfly plate is 0 ° rotation to 8 ° ~ 12 °, thus reduce mechanical wear and tear, extrusion deformation is more, the butterfly valve sealing function and service life is much more progress.

Characteristics and instructions for butterfly valve clamping

1. The valve can be designed as flange connection and clamp connection.

2. The driving mode can be manual, electric or pneumatic

3. The "U" stainless steel sealing ring is adopted, and the seat has certain elasticity. No matter under high temperature or low temperature, it has excellent sealing performance with the butterfly plate.

4. It is a metal-to-metal sealing butterfly valve, with surfacing stainless steel or hardmetal alloy on the sealing surface of the butterfly plate. The sealing surface is wear-resistant and has a long service life.

5. The butterfly valve has excellent sealing, temperature, pressure, wear-resisting and corrosion resistance due to the design of flow line of butterfly plate, the connecting rod, the wear-resisting axle sleeve and other parameters.