For use with single or double-acting cylinders.
 
Functions: Pos. 1 – Oil is directed to “advance” side of cylinder, oil from “retract” side goes to reservoir, cylinder “holds” with pump shut-off. Pos. 2 – Oil goes to “retract” side of cylinder, cylinder “holds” with pump shut-off. When using as a 3-way valve for single-acting cylinders, port “A” or “B” is plugged.