Motorized ball valves are a vital piece of equipment in numerous applications. This model opens and closes in 3-5 seconds, and remains in its new position while expending almost no energy. This is a key difference between motorized ball valves and many solenoid valves. Most solenoid valves are energized continuously when in a new position, while motorized ball valves expend energy only when changing from open to close, or vice versa. 
The 2 wire auto return model is perfect for situations where the valve needs to be closed in case of power loss. The valve can be energized to open, and left hooked up, with negligible energy used once fully opened. To close, simply shutoff power to the valve. This valve is convenient because it can be operated with a simple on off switch. When on, it will remain open, when turned off (or power is lost for some other reason) the valve automatically closes.
The stainless steel ball valve is NSF certified, which means you can install it in the drinking wate pipeline.
 

Specifications
U.S. Solid Model: USS-MSV00027
Valve Material : SS304
Ball Seal: PTFE 
Operating Time : 3-5 Seconds
Working Voltage : 9-24V AC/DC
Max Power : 5 W
Max Torque : 2 N m
Max Medium Pressure : 1.0 Mpa
Temperature Range for Flow Medium : 0°C to 90°C
Ambient Temperature Range : -10°C to 40°C
Enclosure Rating : IP65
Life Expectancy : 80,000 to 100,000 Cycles
Bore Type: Full 
Thread Type : NPT
Wiring Type : 2 Wire Auto Return  Video