DG4V3S2ALMUH560

The DG4V3S2ALMUH560 directional valve is part of the DG4 Directional Valves series manufactured by Vickers. It directs hydraulic flow to actuators in automated machinery. The valve employs a wet armature solenoid to shift the 2-position closed-center spool, keeping internal leakage minimal during stand-by. A spring offset toward the left-hand position holds the spool in its normal state when the coil is de-energized. The hydraulic element accommodates a rated flow of 40 l/min so it can service medium-capacity circuits. Ports p, a, and b withstand operating pressures up to 350 bar (5000 psi), allowing the valve to work in high-pressure systems. For safe installation, it attaches to a subplate through an ISO 4401-AB-03-4-A (CETOP 3) interface, which standardizes port geometry and bolt pattern. The 24 VDC coil shifts the spool once the supply reaches at least 90 percent of its nominal value, ensuring reliable actuation even with modest voltage drops.

The solenoid draws 30 W during excitation, and continuous duty (ED 100 %) permits the coil to remain energized without thermal cycling in closed-loop control schemes. Class F encapsulation protects the winding from vibration, while Class H insulation tolerates elevated temperatures that can develop during extended service. An IP67 rating seals the electrical enclosure against dust and temporary immersion so the valve can be mounted on mobile equipment exposed to wash-down. The tank line is limited to 100 bar (1450 psi) to prevent back-pressure from affecting spool response. Because the design is built for subplate mounting, technicians can exchange valves quickly without disturbing hard plumbing, minimizing downtime. Combined, these electrical and mechanical characteristics keep the DG4V3S2ALMUH560 functioning consistently in hydraulic automation circuits that demand reliable direction control under harsh environmental and thermal conditions.