Directional spool valves
Directional valves of type WE are solenoid-actuated directional spool valves. They control the start, stop and direction of a flow. The directional valves basically consist of the housing, one or two solenoids , the control spool , and one or two return springs. In the de-energized condition, control spool is held in the central position or in the initial position by the return springs. The control spool is actuated by wet-pin solenoids.