1. In high temperature and high pressure conditions, still has a stable sealing performance. Its special sealing system guarantees high sealing performance from ultra-low to ultra-high temperatures at all temperature ranges
2. Three-dimensional eccentric sealing system coupled with the optimization of the design, so that the valve opening resistance is small. The sealing surface of the butterfly plate is always on the convex cone, when opening the circular surface of the butterfly plate at the same time to complete the sealing ring, solid material is not easy to accumulate on the sealing surface. The valve closing process is done by
3. There is no phase card between the butterfly plate and the sealing ring.
4. The sealing performance of the valve is not affected by the temperature change.
5 Shaft Diameter SEAL adopts graphite pressed forming sealing ring. To sum up to ensure the 0 leakage, metal seal plus in the fire before, in, after all zero leakage, it is the nature of fire safety type.