Directional valves with wet pin DC or AC solenoids, type WE6...L6XType WE valves are solenoid operated directional spool valves. They control the start, stop and direction of flow.The directional control valves consist of housing (1), one or two solenoids (2), the control spool (3), and one or two return springs (4).In the de-energised condition the control spool (3) is held in the neutral or initial position by means of return springs (4) (except for impulse spools). The control spool (3) is actuated via wet pin solenoids (2).To guarantee satisfactory operation care should be taken to ensure that the solenoid pressure chamber is filled with oil.The control spool (3) is moved to the expected position by solenoid (2) and pushing rod (5). This gives free-flow from P to A and B to T or P to B and A to T.When solenoid (2) is de-energised, the control spool (3) is returned to its initial position by means of the return springs (4).The solenoids may also control the control spool (3) by an optional override button (6) under the de-energised condition.Type 4WE6..L6X/O... (only possible for symbols A, C and D)This version has 2 switched positions and 2 solenoids without detent.Type 4WE6..L6X/OF... (impulse spool, only for symbols A, C and D)This version has 2 switched positions, 2 solenoids and a detent. Both switched positions are thus fixed alternately and so it is unnecessary to continually energise the solenoid.Cartridge throttle (type 4WE6.. L6X/.../B.. )The cartridge throttle is necessary since actual flow may be larger than the performance limits of the valve during switching process.This is inserted in the P channel of the directional control valve.For application in voltage pulsation, solenoids with large scope voltage are recommended.For application in high protective grade, waterproof plug should be usedWE6...L6X.pdf