The 4WE Rexroth 4WE10E, 4WE10J, 4WE10H, 4WE10G, 4WE10Y, 4WE10F, 4WE10M, 4WE10P, 4WE10U solenoid directional control valve is operated by solenoids, there are two kinds of voltages for option for different operation status, direct current voltage and alternating current voltage. The power from the AC solenoids for directional control valve does not require a dedicated power supply, pull and quick release, operating time is about 0.01 to 0.03s, its disadvantage is that if the supply voltage drops 15 % , the electromagnet suction significantly reduced, if the armature is not actions dry electromagnet coils ( 10 ~ 15min after burn wet solenoid 1 to 1.5h) , and shock and noise is large , low service life , and thus in the actual use of AC solenoids allows the switching frequency is typically 10 beats / min, and shall not exceed 30 times / min .
4WE Rexroth 4WE10E, 4WE10J, 4WE10H, 4WE10G, 4WE10Y, 4WE10F, 4WE10M, 4WE10P, 4WE10U Solenoid Directional Control Valve
The DC solenoid for directional control valve is more reliable, pull and release of the operating time of approximately 0.05 ~ 0.08s , high switching frequency allows the use of generally up to 120 beats / min, up to 300 times / min, and the impact of small, small size, long life. But the need for a dedicated DC power supply, higher costs. In addition, there is a whole electromagnet, the electromagnet is DC , the electromagnet itself with rectifier, a pass into the AC rectifier and then supply DC solenoids. Currently, new development of an oil-immersed solenoid, not only the armature and excitation coil are soaked in oil, and it has a longer life, more stable and reliable, but due to the higher cost, the application of surface not widely.
