Difference of pneumatic butterfly valve electric butterfly valve

Pneumatic butterfly valve and the electric butterfly valve big difference lies in its execution of the configuration of the device is different, one is to use pneumatic actuator, one is to use the electric actuator. Pneumatic butterfly valves and electric butterfly valves difference we can through the multiple comparison, while the existing a more advanced three eccentric butterfly valve are metal hard seal butterfly valves, valve body and seat for conjoined artifacts, 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.


electric butterfly valve hasn't been such use, butterfly valve in the butterfly valve technology have been known, its seal form with seal structure, sealing materials for rubber, ptfe, etc. Due to the limitation of pneumatic butterfly valve structure characteristics, not adapt to the high temperature, high pressure and corrosion resistance, wear resistance, etc. As is different, with pneumatic butterfly valve butterfly valve as a kind of used to implement the piping system for on-off and flow control components are not the same. After now the situation is quite good, so now the electric butterfly valve is already in petroleum, chemical industry, metallurgy, water and electricity is widely used in many fields such as extremely. Pneumatic butterfly valve, the application field is limited.