... , DN20, with manual switch, 2 way, electrical valve,brass Description:This listing includes 1 unit of motorized ball valve ... DN20, 12VDC, 2 way, brass, with manual switch. Application:1.HVAC 2.Water treatment ... no action.3).The conditions that solenoid valve can not be worked.4). Under the pressure between 1Mpa and ... , DN20, with manual switch, 2 way, electrical valve,brass