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The DG4V52CMP71H630 valve is manufactured by Vickers and belongs to the DG4 Directional Valves series. It directs hydraulic flow in automated circuits, using a 3-position spring-centered spool to return the actuator to neutral when power is removed. All ports are blocked in the closed center condition, allowing the system to hold pressure during standby. A wet armature solenoid shifts the spool while keeping the coil immersed in oil for efficient heat dissipation. The unit tolerates a maximum working pressure of 31.5 MPa and passes up to 160 L/min, matching the demands of medium-flow, high-pressure machinery. The T port withstands back pressure to 15.7 MPa so the tank line can be routed through long return hoses without affecting spool movement.
Electrical connection is provided by a plug-in conduit box whose internal thread is G 1/2, enabling standard armored cable glands. It mates with the ISO 4401-AC-05-4-A manifold interface for quick replacement on common subplates. Four M6 screws must be tightened to 12–15 N·m to secure the body and prevent leakage under cyclic loading. The mounting surface must remain within 0.01 mm flatness over every 100 mm and achieve a roughness of no more than 1.6 µm Ra to preserve seal compression. Correct interface geometry secures hydraulic passage alignment and minimizes pressure loss, completing a compact directional control element for automated power units.
Center Condition
Closed Center (All Ports)
Conduit Box Thread
G 1/2
Electrical Wiring
Plug-In (Conduit Box)
Max Flow
160 L/min
Max Working Pressure
31.5 MPa
Mounting Bolt Torque
12–15 N·m
Mounting Bolts
4×M6
Mounting Interface
ISO 4401-AC-05-4-A
Mounting Surface Flatness
≤0.01/100 mm
Mounting Surface Roughness
1.6 µm Ra
Solenoid Type
Wet Armature
Spool Function
3-Position Spring Centered
T Port Allowable Back Pressure
15.7 MPa
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