Which is cheaper for the high and middle school pneumatic fluorine lined wafer butterfly valve? The double eccentric semi pneumatic ball valve is a new product developed by absorbing the advantages of pneumatic ball valves with different structures, V-shaped valves and track pneumatic ball valves. The pneumatic ball valve adopts a double eccentric sealing structure, with small wear, small torque, good sealing performance and long service life. The valve seat and hemisphere are treated by special hardening process, which is especially suitable for the requirements of wear resistance, erosion resistance, corrosion resistance and high temperature resistance under harsh conditions.
Structural characteristics
1. It still has stable sealing performance under high temperature and high pressure. Its special sealing system can ensure high sealing performance in all temperature ranges from ultra-low temperature to ultra-high temperature
2. The three-dimensional eccentric sealing system combined with the optimized design makes the opening resistance of the valve small. The sealing surface of the butterfly plate is a cone that is always convex upward. When opening, all points on the circumference of the butterfly plate complete the separation from the sealing ring at the same time, and solids are not easy to accumulate on the sealing surface. The closing process of the valve is completed through the elastic compression of the sealing ring,
3. There is no phase jam between butterfly plate and sealing ring
4. The sealing performance of the valve is not affected by temperature change
