Duplomatic Solenoid Valve | DS3 DS5 DSP7 | DS3-TA/11N-D24K1 DS3-S2/11N-A230K1

The Duplomatic Directional Valve Series from LIC Hydraulic offers a versatile range of control solutions, from direct-operated DS3 (NG6) and DS5 (NG10) solenoid valves to pilot-operated DSP7 (NG16) high-flow valves. Models such as DS3-TA/11N-D24K1 and DS3-S2/11N-A230K1 represent the industry standard for precision directional control. We guarantee 100% mechanical interchangeability and subject every unit to 100% dynamic shifting response and internal leakage tests, ensuring reliable operation at pressures up to $350\text{ bar}$.

Technical Configuration Details

• Series Hierarchy: DS3 (NG6/CETOP 03), DS5 (NG10/CETOP 05), DSP7 (NG16/CETOP 07).

• Voltage Options: $24\text{V DC}$ (D24), $110\text{V AC}$ (A110), $230\text{V AC}$ (A230).

• Connector Standard: K1 (DIN 43650) / D00 (Lead wires or specialized).

• Max Operating Pressure: $350\text{ bar}$ ($5000\text{ psi}$).

• Flow Rate: Up to $100\text{ L/min}$ (DS3) and significantly higher for DSP7 pilot-operated units.

Key Technical Advantages

• Wet-Armature Solenoids: The plunger operates fully immersed in oil, which provides natural lubrication, dampens impact noise, and ensures excellent heat dissipation for high-duty cycle applications.

• Optimized Cast Passages: Internally cast flow paths are precision-engineered to minimize fluid friction, resulting in a lower pressure drop and increased overall system efficiency.

• Reliable Shifting Precision: High-tolerance spool and bore machining ensures consistent shifting times and minimal internal leakage, maintaining system pressure and actuator positioning.

• Pilot-Operated Versatility (DSP7): For systems requiring large volumes of oil, the DSP7 series uses a smaller DS3 valve as a pilot to shift the main spool, providing fast response for heavy-duty industrial machinery.

Application Areas

• Machine Tools: Clamping, pallet changing, and turret indexing controls.

• Plastic & Rubber Machinery: Control logic for injection, mold closing, and ejection sequences.

• Hydraulic Presses: Primary directional control for forging and stamping operations.

• Automated Production: Integrated manifolds for compact and modular Hydraulic Power Units (HPU).

Expert Maintenance Tips

• Electrical Safety: For AC models (e.g., A230), ensure the supply frequency and voltage are stable. For DC models, use suppression diodes to prevent voltage spikes that can damage control electronics.

• Case Port Back-pressure: Monitor back-pressure at the tank port (T-port). Excessive back-pressure can interfere with spool shifting or cause seal failure over time.

• Filtration Integrity: Maintain hydraulic fluid cleanliness to ISO 4406 19/17/14 or better. Particulate contamination is the leading cause of spool sticking and premature wear on the valve body.