We believe that the valve operating torque is generated from the friction between the metal parts of the valve and the seals. That's all for today's introduction.

First, because many layers of soft and hard laminated seal rings need to be fixed on the valve plate, if the valve plate is in the normally open state, of course, this value will cause a positive erosion on the sealing surface. In the interlayer of the metal sheet, the soft seal belt will have an impact on the sealing after being washed.