The first advantage is that in terms of design, the ball valve has strengthened the design of the thrust bearing, and the friction force of the valve stem has been effectively reduced. Because the torque is directly shortened, the valve stem will not have too much loss in long-term use, so that the valve stem can work more stably and is not easily damaged. 　　

I think we are more concerned about the sealing of electric switch butterfly valve. According to the structure, it can be divided into metal seal and soft seal. The former uses a U-shaped stainless steel seal ring, which is more precise and can give full play to the sealing effect by contacting the polished butterfly plate in a three-dimensional eccentric manner. Unlike the traditional eccentric butterfly valve, it solves the problem that the sealing surface is still in sliding contact friction at the moment of opening and closing from 0 to 10 degrees, and instantly realizes the separation of the butterfly plate from the sealing surface at the moment of opening. In short, it can enhance the service life of the electric on-off butterfly valve and achieve the best sealing performance. As for the latter, the wafer butterfly valve body is used. The fluorine lining or rubber lining on the inner wall of the valve body is used to reach the butterfly plate, which can play a completely sealed state to ensure that the medium does not leak.