Solenoid Operated Directional control valves allow fluid to flow into different paths from one or more sources. The direction of fluid flow control is controlled through a manual or electrical spool.
4 Way 3 Position Spool
Motor Center
Direct Acting Spool
When De-Energized, the valve allows flow between (1), (3) and (4), and blocks flow at (2).
When outer coil (S1) is Energized the valve allows flow from (2) to (1) and from (3) to (4).
When inner coil (S2) is Energized, the valve allows flow from (2) to (3) and from (1) to (4).