motorized ball valve 12V, DN20, with manual switch, 2 way, ... Small equipment for automatic control 5.Replacing solenoid valve, particularly when solenoid cannot work reliably Features:1).Smart shape, ... long time no action.3).The conditions that solenoid valve can not be worked.4). Under the ... passes position (fully closed) motorized ball valve 12V, DN20, with manual switch, 2 way, electrical valve, ...