... control. Two Way Pneumatic Water Flow Control Valve Main Technical Parameters DN(mm)1520253240506580100125150200250300350400450500600Ball core typeFloat ... -acting pneumatic actuatorsAvailable Accessories solenoid valve,air filter,lock up valve,switch,Valve position transmitter,Emergency action equipments, ... 304,304L,316,316L,corrosion-resisting alloy…lSphere/seat material:PTFE,A105,1Cr13, 304,304L,316, ...