The sealing element is vital for valves, preventing media leakage when closed. Made of durable, corrosion-resistant materials, it withstands pressure, temperature, and corrosion. Its repeated friction during operation makes material choice and manufacturing quality crucial for sealing performance and valve lifespan, regardless of valve type.
The double-eccentric wafer-type butterfly valve features a double-eccentric design, where the centerline of the stem and the seat does not align with the centerline of the disc.