Desulphurization And Denitrification Flue Valve

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. Desulphurization valve is a kind of valve which is suitable for desulphurization and denitrification in power plant. Limestone-gypsum wet method is used in desulphurization system. The medium of limestone slurry system will appear strong corrosion after desulphurization. The requirement of desulphurization valve is that it cannot only resist chloride, oxide, acid, but also withstand harsh particle wear and slurry scour. Special valves for desulphurization can be divided into manual, electric and pneumatic in terms of execution mode. The structure of the valve for the rectangular desulfurization is as follows: the structure of the desulfurization valve is reasonable, the operating torque is low, the appearance of the configuration executor is small, the valve plate 1.4529 or 1.4469 has high strength and corrosion resistance, and the valve seat of the desulfurization valve has extremely strong chloride and acid-oxygen corrosion, is resistant to erosion and has long service life, the balance and the support property of the molded rubber valve seat are effectively avoided, the damage to the rubber due to uneven stress is effectively avoided, and when the full-closed position of the desulfurization butterfly valve is in the fully closed position, the rubber is in an optimal compression state to keep zero leakage; The automatic control valve is equipped with high quality electric actuator or single and double acting pneumatic actuator, with clutch to realize hand, electric dual use, rubber sealing surface at both ends of desulphurization valve protruding nodular cast iron flange surface, valve without additional rubber sealing gasket when pipe installation. The inner and outer surface of nodular cast iron shell of rectangular desulphurization 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.