DG4SM-3-2C-P7-H-50

The DG4SM-3-2C-P7-H-50 directional control valve belongs to the DG4 Directional Valves series and is produced by Vickers. It directs hydraulic flow in automation circuits and supports actuators that require rapid changeover between functions. A spool type 2 design provides a closed center configuration so pump flow is blocked and system pressure is retained when the valve is in the neutral position. The C spring arrangement centers the spool automatically when the solenoid is de-energized, restoring neutral flow paths without external input. A maximum flow rating of 40 l/min defines the volumetric throughput the body and internal passages can sustain. Ports p, a, and b tolerate pressures up to 350 bar, while the dedicated tank port is limited to 210 bar to protect return-line components. Installation aligns to an ISO 4401-03 (CETOP 3) interface, making the valve interchangeable with standard sub-plates. The assembled unit weighs 2.2 kg, which simplifies manual handling during service.

Electromagnetic actuation is supplied by a wet armature solenoid that is immersed in hydraulic fluid for damping and life extension. The coil operates at 24 VDC and draws 30 W under rated conditions, providing stable force to shift the spool across its travel. Class H insulation withstands elevated temperature during continuous duty, and a 100 percent ED rating confirms the coil can remain energized indefinitely without thermal cycling. Energization time is 60 ms, allowing predictable response for closed-loop motion sequences that depend on fast valve shifts. Electrical connection is made through male Packard pins, enabling quick assembly with molded harnesses in mobile or industrial frames. A water-resistant manual override lets technicians stroke the spool mechanically during commissioning or in the event of power loss, ensuring circuit availability without removing covers. Together these electrical features complement the hydraulic characteristics outlined earlier and complete the functional profile of the valve.