Yuken DSG Directional Solenoid Valve | DSG-02 & DSG-03 Hydraulic Valve Replacement

Genlu Hydraulic proudly introduces our precision-engineered DSG Series solenoid directional valves, the essential power-switching components for machine tools and automation systems. This series serves as a precise match for Yuken technical specifications, offering full compatibility with industry-standard models such as DSG-02-3C4-LW-D24 and DSG-03-2B2-D24-50. Genlu unequivocally guarantees 100% Drop-in Interchangeability in mounting patterns (ISO standard), spool configurations, electrical connection types, and flow capacity. Backed by our uncompromising 100% Simulation Load Testing, each valve is validated for high-frequency switching response, static leakage, and pressure-rated temperature rise before dispatch, ensuring precise and agile fluid control for your hydraulic circuits.

Technical Specifications 

• Product Series: Yuken DSG Series Solenoid Directional Valve (DSG-02 / DSG-03)

• Spool Configuration: 3C4 (Closed Center), 2B2 (Spring Centered)

• Rated Operating Pressure: Up to 31.5 MPa (315 bar)

• Rated Flow Capacity: Up to 63 L/min (DSG-02) / 120 L/min (DSG-03)

• Voltage: DC 24V (AC 110V/220V options available)

• Switching Frequency: Up to 150 – 300 cycles/min

• Mounting Type: Sub-plate mounting, ISO 4401 compliant

• Protection Rating: IP65 (with DIN connector)

Key Technical Advantages:

• High-Speed Solenoid Design: Utilizing specialized high-permeability magnetic materials and efficient winding technology, our solenoids provide maximum force and ultra-fast response times, significantly boosting the operational efficiency of automated equipment.

• Precision-Ground Spool: The spool and valve body undergo CNC high-precision grinding. With ultra-tight running clearances, we ensure the valve operates smoothly while minimizing internal leakage, maintaining system pressure stability.

• Impact-Resistant Long-Life Springs: Crafted from fatigue-resistant spring steel and endurance-tested for millions of high-frequency cycles, our springs ensure crisp switching action without stalling even after prolonged operation.

• Maintenance-Friendly Modular Structure: The compact design allows for easy solenoid coil replacement. The standard sub-plate mounting interface adheres to international standards, drastically reducing downtime during maintenance.

Application Areas:

• Machine Tools: Hydraulic clamping, station rotation, and tool-changer systems for CNC machines.

• Injection Molding: Mold opening/closing control, ejection actions, and auxiliary circuit switching.

• Press Machinery: Main control circuits for presses, shears, and small hydraulic units.

• Automation Lines: Material handling, automated jigs, and various hydraulic actuator controls.

Expert Maintenance Tips:

• Voltage Fluctuation Protection: For DC 24V solenoids, ensure the power supply voltage fluctuation remains within ±10% of the rated value. Undervoltage leads to weak switching, while overvoltage accelerates coil aging.

• Fluid Cleanliness Standards: Solenoid valves have precision internal clearances that are highly sensitive to contamination. We strongly recommend maintaining system cleanliness at ISO 4406 19/17/14 or better, paired with a 10μm inlet filter to prevent spool sticking.

• Periodic Manual Testing: After prolonged machine idle times, verify spool movement using the manual override (if equipped) to ensure the valve operates freely before powering the system for safe operation.