... ball valve 12V, DN20, with manual switch, 2 way, electrical valve,brass Description:This ... 2 way, brass, with manual switch. Application:1.HVAC 2.Water treatment 3.Chemical process 4.Small equipment for ... assembling, convenience for all kinds of requirements.2).Float ball design, no leak, most suitable for heavy ... dirt and long time no action.3).The conditions that solenoid valve can not be ...