1/2 Inch NPT Electric Motorized Ball Valves Stainless Steel DC24V DN15 2-Way 3-Wire
3 Wires: Yellow (-)= Common, Red (+)=OPEN, Blue (+)=CLOSE. If you connect Red and Blue to (+) at the same time the valve rotates forever. Neat but of little value. There is a diode to prevent damage from reverse polarity. Motor runs until valve is in new position (or voltage is removed), so basically full OPEN or full CLOSED. I tested mine dry with a 7.4v LiPo battery and it worked fine. I assume it will require the listed 24VDC in order to work while under pressure.
Good
Works well.Good