The characteristics of the triple eccentric metal hard seal butterfly valve

Butterfly valve, as a kind of used to implement the on-off and flow control components, piping system in petroleum, chemical industry, metallurgy, water and electricity is widely used in many fields such as extremely. In butterfly valve technology has been known, its seal form with seal structure, sealing materials for rubber, ptfe, etc. Because of the limitation of structural features is not adapt to the high temperature, high pressure and corrosion resistance, wear resistance, etc. Triple eccentric pneumatic butterfly valve, the valve body and seat for connecting component and valve seat sealing surface layer welding temperature resistant and corrosion resistant alloy material. Multilayer soft fold type sealing ring is fixed on the valve plate, the butterfly valve and the traditional butterfly valve compared with high temperature resistant, convenient operation, opening and closing without friction, closed as the actuator torque increases to compensate for sealing, improve the butterfly valve sealing performance and prolong the service life of the advantages.