Vickers DG4V Series Solenoid Valve | DG4V-3-6C | DG4V-5-2C-M-U-C6-20

The Vickers DG4V Series from LIC Hydraulic represents the global standard for high-performance Solenoid Directional Control Valves. Whether it is the compact DG4V-3 (NG6) or the high-flow DG4V-5 (NG10), these valves are designed to provide reliable oil flow switching under the most demanding industrial conditions. Featuring the specialized DG4V-3S-6C-M-U6-D5-60 configuration, these valves offer unparalleled duty-cycle life and shifting precision. We provide 100% drop-in replacements, ensuring total mechanical and electrical compatibility with ISO 4401 mounting standards.

Technical Highlights

• Flow Capacity: Up to $80\text{ L/min}$ (Size 3) and $160\text{ L/min}$ (Size 5).

• Max Operating Pressure: Rated for continuous duty at $350\text{ bar}$ ($5075\text{ psi}$).

• Coil Design: High-reliability wet-pin solenoids with interchangeable AC/DC coils.

• Mounting Pattern: ISO 4401-03 and ISO 4401-05 compliant.

Core Advantages

• Enhanced Fatigue Resistance: The valve body is cast from high-strength ductile iron, engineered to resist internal distortion even during rapid pressure spikes, preventing spool “stiction.”

• Optimized Spool Dynamics: Precision-lapped spools ensure minimal internal leakage and provide repeatable shifting times, critical for synchronized multi-axis machine movements.

• Modular Electrical Connectivity: Featuring the “U6” and “H7” style connectors, the coils are easy to replace or reposition, significantly reducing maintenance downtime during onsite repairs.

• Thermal Stability: The wet-pin design allows the hydraulic oil to dissipate heat from the solenoid plunger, allowing for a 100% continuous duty cycle without the risk of coil burnout.

Expert Maintenance Tips

• Electrical Polarity: For DC24V (D5) models, ensure stable voltage within $\pm 10\%$. Low voltage can lead to incomplete spool shifting, which causes the coil to overheat and eventually fail.

• Fluid Cleanliness: To maintain the precision of the DG4V series, ensure oil cleanliness meets ISO 18/16/13. Particulate contamination is the leading cause of spool jamming and premature wear of the valve lands.

• O-ring Inspection: When replacing a valve, always use new Viton or NBR O-rings (included) and lightly lubricate them to prevent pinching during mounting to the subplate.