motorized ball valve 12V, DN20, with manual switch, 2 way, electrical valve,brass Description:This listing includes 1 ... motorized ball valve DN20, 12VDC, 2 way, brass, with manual switch. Application:1.HVAC 2.Water treatment 3.Chemical process 4 ... , Perform reliably, large output torque, as long as 50000-100000 times.multi-angel assembling, convenience for all kinds of requirements.2 ...