HOERBIGER HAWE PRL400 PIL400 Proportional Valve | PRL400PC06P24 | PIL400P08P40 D2

LIC Hydraulic’s HOERBIGER / HAWE PRL and PIL Series proportional pressure valves are elite components engineered for precise, stepless hydraulic pressure regulation. Covering a wide range of models including the PRL400, PRL500, PIL400, and specific part numbers like PRL400PC06P24 C1 and PIL400P08P40 D2, these valves utilize advanced electromagnetic proportional technology to adjust output pressure based on input current signals. We guarantee 100% Drop-in Interchangeability with original Hoerbiger/HAWE specifications. Every valve undergoes 100% dynamic response curve testing to ensure laboratory-grade linearity and repeatability for high-end industrial automation.

Technical Specifications

• Series Model: PRL (Proportional Reducing) / PIL (Proportional Relief)

• Target Models: PRL400PC06P24 C1 / PIL400P08P40 D2

• Max Operating Pressure: Up to 350 bar (35 MPa / 5075 PSI)

• Flow Range: 20 L/min to 120 L/min (size dependent)

• Rated Voltage: 24V DC

• Control Signal: Proportional Current (0-800mA or 0-1600mA)

• Hysteresis: < 3% (High-precision accuracy)

• Environmental Rating: IP65 / IP67

• Mounting Configuration: Sub-plate or Pipe mounting available

Key Technical Advantages

• Superior Control Linearity: The precision-matched spool and high-performance solenoid ensure a nearly perfect linear relationship between input current and output pressure, simplifying PID tuning in PLC systems.

• Rapid Dynamic Response: Optimized flow paths and low-friction spool treatments allow for millisecond-level response times, effectively preventing pressure overshooting even during rapid cycle changes.

• High-Durability Solenoids: Potting with Class H insulation materials provides excellent heat and vibration resistance, ensuring consistent electromagnetic performance in 24/7 heavy-duty operations.

• Modular Versatility: The PRL/PIL architecture integrates seamlessly into complex HAWE valve manifolds, offering flexible multi-stage pressure reduction and safety relief solutions.

Application Areas

• Injection Molding: Precision control of injection and holding pressures.

• Metal Forming: Stepless pressure regulation for hydraulic presses and benders to improve part accuracy.

• Industrial Vehicles: Proportional steering and smooth load handling for material processing equipment.

Expert Maintenance Tips

• Amplifier Matching: To maximize the performance of the PRL400, always use a high-quality proportional amplifier (e.g., HAWE EV series) with a properly configured Dither frequency to minimize hysteresis.

• Fluid Cleanliness Standards: Proportional valves are highly sensitive to contamination. Maintain system filtration at ISO 4406 18/16/13 or better. Fine particulates can clog pilot orifices or cause spool sticking.

• Connector Protection: Ensure the electrical plugs are fully seated and sealed. Moisture ingress into the solenoid connector is the leading cause of resistance drift and control failure.

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