Vickers Eaton DG4V Series Solenoid Valve | DG4V-3-0C DG4V-5-2A 6C | Hydraulic Directional Control Valve

Chengyuan Hydraulic presents the DG4V Series solenoid-operated directional valves, meticulously engineered as premium replacements for Vickers (Eaton) industrial standards. This range covers both Size 03 (DG4V-3) and Size 05 (DG4V-5) configurations, including specific models such as DG4V-3-0C, DG4V-5-2A, and DG4V-5-6C. As the control heart of hydraulic circuits, Chengyuan ensures 100% Drop-in Interchangeability regarding mounting patterns (ISO 4401 compliant) and electrical connectivity. Featuring a wet-armature solenoid design and backed by our signature 100% Simulation Load Testing, each valve is rigorously validated for switching frequency and internal leakage. We provide a highly reliable, cost-effective solution for plastic machinery, machine tools, and general industrial applications.

Technical Specifications 

• Series Specifications: DG4V-3 (Size 6) / DG4V-5 (Size 10)

• Max Operating Pressure (Ports P/A/B): 315 bar (4500 psi)

• Max Tank Pressure (Port T): 120 bar (Standard) / 210 bar (High Performance)

• Rated Flow (DG4V-3): Up to 80 L/min (21 USgpm)

• Rated Flow (DG4V-5): Up to 120 L/min (32 USgpm)

• Coil Voltages: 12V/24V DC, 110V/220V AC (50/60Hz)

• Spool Functions: 0C (Closed Center), 2A (Spring Offset), 6C (All Ports Open)

• Seal Material: NBR (Standard) / FKM (Optional)

• Electrical Connection: DIN 43650 Connector or Conduit Box

Key Technical Advantages:

• Low Pressure Drop Cavity: The internal galleries are designed through advanced casting techniques to minimize flow resistance. This results in less heat generation and higher energy efficiency for the hydraulic system.

• Wet-Armature Solenoids: The solenoid armature is fully immersed in system oil, providing automatic lubrication and damping. Compared to dry types, it significantly reduces shifting shock and extends service life to tens of millions of cycles.

• Precision-Lapped Spools: Spools and valve bodies are matched and precision-lapped to micron-level tolerances. This ensures ultra-low internal leakage and exceptional shifting reliability even at peak pressures.

• Superior Contamination Resistance: Spools feature specialized cleaning grooves that effectively manage fine particulates in the fluid, preventing spool binding—ideal for demanding mobile and industrial environments.

Application Areas:

• CNC Machine Tools: Used for tool changing, clamping, and worktable movement control.

• Plastic Machinery: Ideal for auxiliary circuits in injection molding machines, such as mold shifting or ejection.

• Automated Production Lines: Controlling conveyor lifts, cylinder actuators, and press sequencing.

• Compact Hydraulic Power Units (HPUs): Providing stable directional control for various industrial actuators.

Expert Maintenance Tips:

• Voltage Stability: Ensure the power supply to the solenoid remains within ±10% of the rated voltage. Low voltage causes insufficient thrust; high voltage risks coil burnout.

• Mounting Flatness: The subplate mounting surface must be perfectly flat. Follow recommended torque specifications strictly; an uneven surface can cause slight valve body distortion, leading to spool sticking.

• Solenoid Air Bleeding: During initial start-up or after long periods of inactivity, manually cycle the valve several times to exhaust trapped air from the solenoid cavities for smooth operation.