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 rated pressure range of the double-eccentric flanged butterfly valve is typically between tens of megapascals to hundreds of megapascals. The rated diameter generally ranges from a few millimeters to several meters, depending on the actual requirements.