Duplex steel gate valves are manufactured from advanced duplex stainless steel grades that combine austenitic and ferritic microstructures to provide superior mechanical strength and excellent corrosion resistance. The most commonly used material is Duplex Stainless Steel 2205, which contains approximately 22% chromium, 5–6% nickel, 3% molybdenum, and nitrogen, offering high resistance to pitting, crevice corrosion, stress corrosion cracking, and chloride environments.
For more aggressive conditions, such as seawater, offshore, and chemical processing applications, Super Duplex Stainless Steel 2507 is used, featuring higher chromium, molybdenum, and nitrogen content for enhanced Pitting Resistance Equivalent Number values above 40. These materials provide nearly double the yield strength of standard austenitic stainless steels like 316, allowing for thinner wall sections while maintaining high pressure ratings.
Duplex steel gate valves typically include forged or cast bodies, duplex stems, wedges, and bolting components, all engineered for durability in oil and gas, petrochemical, desalination, power generation, and marine industries. The balanced ferrite–austenite structure ensures excellent weldability, good impact toughness, and long service life under high-pressure, high-temperature, and corrosive operating conditions.Duplex steel gate valves are widely used in oil and gas, chemical processing, marine, and desalination industries where high pressure, high temperature, and corrosive environments are present.
Duplex Steel Gate Valves In Tamil Nadu
Duplex Steel Gate Valves Manufacturers In Tirunelveli
Duplex Steel Gate Valves Suppliers In Tiruppur
Duplex Steel Gate Valves Exporters In Tiruvallur
Tamil Nadu - Duplex Steel Gate Valves.
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