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
Open Center
Direct Acting Spool
When De-Energized, the valve is open to all ports, all pressures are relieved.
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).