... way pneumatic water flow control valve. 2.Good sealed performance, low Leakage. 3.Easy to implement remote control. Two Way Pneumatic Water Flow Control Valve ... pneumatic actuatorsAvailable Accessories solenoid valve,air filter,lock up valve,switch,Valve position transmitter,Emergency action ... main partslValve body material :cast steel(ZG230-450),Cast stainless steelZG1Cr18Ni9Ti,304,304L,316,316L, ...