Electric knife gate valve that includes soft seal and hard seal is a new structure .Soft seal with activities seat and changeable rubber ring can  easily replace damaged seal ring to achieve sealing requirement well , and can be made of PTFE seals according to customer's demands. It completely makes up for past  PTFE difficult to seal  and processing inconvenient ,and yoke is cast into a model using structure to make valve  better robustness and usability.  It's suitable for paper making, mining, sewage, chemical industry, food industry .This valve with electric actuator can realize remote microcomputer control.  When power is cut off, it also can be operated by manual to control the flow of media to  avoid accidents . You can also use electric control box, remote PLC intelligent control, etc, to operate and debug control. Users can choose according to the their needs.