NC(normally close):  the solenoid valve start to work when power on.Model:  FCC-11SPower: DC12VUsing the media: Clean water, pump gasMedia Temperature: 1 ~ 88℃Connection: DN15 (G1/2”)Valve Material: plastic Body part ,copper connectorVoltage Range: Rated voltage ± 10%Water Pressure Range: 0.02MPa-0.8MPaFiltering Function: Removable cleaning filter deviceReturn Stop Function: yesAction