... pneumatic.4, Be widely used in petroleum,chemical engineering,pharmacy, electric power industry etc.5, Can be used as close ... with corrosive medium or non-corrosive medium. Description for Electric Actuator For gate valve, Multi-turn type is the ... : WCB+1Cr13, WCB+ stellite Top flange size : according to electric actuator sizeApplicable standard for Valve :Design and Manufacture according to ...