electro pneumatic valve: 1,High quality,long life cycle 2,Valve type:5/2,5/3 N.C and N.O 3,Acting:Pilot Electro pneumatic valve :1)Pilot-oriented mode:optional for internal or external;2)Structure in sliding column mode:good tightness and sensitive reaction;3)Three position solenoid valves have three kinds of central function for your choice;4)Double control solenoid valves have memory function;5 ...