motorized ball valve 12V, DN20, with manual switch, 2 way, electrical valve,brass Description: ... ball valve DN20, 12VDC, 2 way, brass, with manual switch. Application:1.HVAC 2.Water treatment 3.Chemical ... no leak, most suitable for heavy dirt and long time no action.3).The conditions that solenoid valve can ... fully closed) motorized ball valve 12V, DN20, with manual switch, 2 way, electrical valve,brass