Specification Nominal Diameter DN InchThread Diameter mm Thread TypeMaterialVoltageTypeMax PressureWorking TemperatureApplicable MediumFlow DirectionDN081 412G ThreadBrassDC 12VNormal Closed NC 0 8Mpa 5 80 ℃Air Water Oil GasOne WayDN103 815DN151 2201 0MPaDN203 425DN25130DN321 1 440DN401 1 246DN50257 Features 1 Two position two way normal close switch magnetic solenoid water valve 2 Horizontal installation3 Used to control automatically the liquid and gas in the pipeline 4 Good copper material crush resistance crack leak proof safe non toxic and long life 5 Suitable for medium with gas water oil and gas Solenoid valve working principle Normally closed When the coil is energized the p ilot spool is closed the p ilot hole is opened the upper chamber of the valve is relieved the piston is pushed by the medium pressure of the lower chamber and the solenoid valve is opened When the coil is de energized the p ilot spool is reset by the spring the p ilot hole is closed the upper chamber of the valve is pressurized by the piston orifice and the thrust of the return spring and the solenoid valve is closed More choice AC 220V Please refer to ID 1327193AC 110V Please refer to ID 1474459DC24V Please refer to ID 1474508 Package Included 1 x 12V Electric Solenoid Valve Pneumatic Valve for Water Air Gas