Duplex ball valves have the advantages of both ferritic stainless steel and austenitic stainless steel: austenitic stainless steel reduces the brittleness, maintains excellent toughness and weldability; ferritic stainless steel improves the yield strength, intergranular corrosion resistance and chloride stress corrosion resistance. Weidouli provides a whole range of high-class, customizable and innovative duplex ball valves.
High strength, high resistance to stress corrosion cracking, corrosion fatigue and erosion.
Good sulfide stress corrosion resistance.
High energy absorption.
Soft seat or metal seat.
Full bore or reduced bore.
Blow-out proof stem.
Anti-leakage packing and packing box.
Operation: handle, gear, air actuators, hydraulic actuators, electric actuators.
Pulp & paper industry
Devices like Heat exchanger and condensator
Seawater desalination plants