Desulphurization valve seat has strong resistance to chlorine ion and acid and oxygen corrosion,scour resistance, long life, balance and support of molded rubber seat,effectively avoid the damage to rubber caused by uneven force, when the desulphurization butterfly valve is in the full closed position, the rubber is in the best compression state to maintain zero leakage.
The equipment has high quality electric actuator or single, double action pneumatic actuator, with clutch to achieve hand, electric dual use;
The rubber sealing surface of the special valve for round desulphurization and denitrification protrudes the flanged surface of nodular cast iron, and the valve does not need additional rubber sealing gasket when the pipe is installed.
The inner and outer surface of nodular cast iron shell of circular desulphurization and denitrification valve is coated with epoxy resin powder sprayed at high temperature. The coating has high corrosion resistance and very high bonding strength with nodular cast iron substrate.