For the automatic and distance on/off control of media including air ,water,oil,gas,liquefied,gas,etc. Struucture features:With the function of valves open first and after together.Technical ParametersDiameter8 10 15 20 25 32 40 50Working PressureWater Gas:0-1.0MPa Oil:0-0.5MPaMedium Temperature-5-80Rating VotiageAC:38022036 DC:2412power≤15W Installation sizeModelABCDK2W025-066630.37540.5G1/ ...