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.
TIANYU ductile iron flanges (DN10–DN2000, PN6–PN40) made from GGG40/50 material comply with ANSI/DIN standards. High strength, cost-effective, suitable for water, steam, oil, and other media. Widely used in water supply, petrochemical, and power industries, providing reliable pipeline connection solutions with a service life ≥50 years.