DSD DSV Solenoid Directional Valve | DSD-G02 DSD-G03 | DSV-G02-2C-DC24-20

The DSD & DSV Series from LIC Hydraulic are professional-grade solenoid-operated directional control valves featuring wet-type solenoids for maximum reliability. Available in G02 ($NG6$) and G03 ($NG10$) sizes, models such as DSD-G02-2C-DC24-31 and DSV-G02-2C-DC24-20 provide precise flow direction management in a compact package. We guarantee 100% mechanical interchangeability and subject every valve to 100% dynamic response cycling and internal leakage testing, ensuring peak performance in high-frequency industrial automation.

Technical Configuration Details

• Standard Sizes: G02 ($NG6/CETOP 3$) and G03 ($NG10/CETOP 5$).

• Max Pressure: Rated up to $315\text{ bar}$ ($4500\text{ psi}$).

• Max Flow: Up to $60\text{–}80\text{ L/min}$ (G02) and $100\text{–}120\text{ L/min}$ (G03) depending on spool type.

• Voltages: DC24V, AC110V, AC220V with standard DIN 43650 connectors.

Key Technical Advantages

• Wet-Armature Solenoids: The solenoid plungers operate immersed in hydraulic oil, which provides natural lubrication and cooling. This design eliminates seal friction and extends the electrical life of the coil.

• Optimized Spool Geometry: Precision-ground spools and streamlined internal passages reduce pressure drops across the valve, contributing to overall system energy efficiency.

• Smooth Shifting Characteristics: Engineered to minimize hydraulic shock during changeovers, these valves protect downstream components from sudden pressure spikes.

• Robust Housing: The high-quality cast body resists deformation under peak pressures, maintaining the critical clearances required for zero-stick operation.

Application Areas

• CNC Machinery: Directional control for tool changers, worktable indexing, and clamping fixtures.

• Automated Production: Sorting, lifting, and conveying logic in high-speed manufacturing lines.

• Industrial Hydraulic Power Units (HPUs): Reliable switching for a wide variety of secondary hydraulic circuits.

Expert Maintenance Tips

• Power Supply Integrity: Ensure the solenoid is provided with the correct voltage. Over-voltage can burn out the coil, while under-voltage leads to insufficient magnetic force, potentially preventing the spool from shifting fully.

• Filtration Management: Maintain oil cleanliness at ISO 4406 19/17/14 or better. Silt and particles are the primary enemies of directional valves; even small contaminants can lead to spool seizure or increased internal leakage.

• Check Spool Function: If the valve fails to shift, manually check the emergency override button (if equipped). If the spool moves freely manually but not electrically, the issue is likely electrical or coil-related. If it’s stuck manually, the valve body requires cleaning or replacement due to contamination.