Rexroth 4WRPEH Proportional Valve | 4WRPEH6C | 4WRPEH10CB | 24V DC OBE

Rexroth 4WRPEH Series Direct-Operated Proportional Servo Valves

Product Overview:

The Rexroth 4WRPEH Series is a high-performance direct-operated proportional directional valve featuring On-Board Electronics (OBE). It is specifically engineered for closed-loop control systems—such as pressure, flow, and positioning—that demand exceptional dynamic response and repetitive accuracy. Utilizing an integrated LVDT displacement sensor for real-time spool position monitoring, this series automatically compensates for fluid force disturbances, delivering servo-grade linearity and minimal hysteresis. Available in both NG6 and high-flow NG10 sizes, the 4WRPEH is the premier choice for precision injection molding, press technology, and flight simulators.

Featured models include the 4WRPEH6-CB24L (2X Series), 4WRPEH10CB100L (High Flow), and the latest 4WRPEH6C4B12L (3X Series).

Key Technical Advantages:

• Direct-Operated Dynamics: High-force proportional solenoids actuate the spool directly, ensuring rapid switching speeds ideal for high-frequency operations.

• Integrated OBE Technology: On-board electronics simplify wiring and arrive factory-calibrated for gain and null settings, offering “Plug-and-Play” convenience and superior EMC.

• Precision LVDT Feedback: The inductive position sensor ensures closed-loop spool control, reducing hysteresis to negligible levels (< 0.1%).

• Zero-Lap Spool Design: Micro-ground spools provide excellent linear transitions near the center position, meeting rigorous servo-performance standards.

Detailed Specifications & Parameters:

• Core Series: Rexroth 4WRPEH (NG6 & NG10) Series.

• Featured Model Matrix:

  • 4WRPEH6-CB24L-2X/G24K0/B5M (Size 6, 24 L/min, 2X design sequence)

  • 4WRPEH10CB100L-2X/G24K0/A1M (Size 10, 100 L/min, 2X design sequence)

  • 4WRPEH6C4B12L-3X/M/24A1 (Size 6, 12 L/min, Latest 3X design sequence)

• Core Performance Specs:

  • Nominal Sizes: NG6 (Size 6) and NG10 (Size 10).

  • Max Operating Pressure: Ports P, A, and B rated at 315 Bar.

  • Rated Flow Rates: 12 L/min, 24 L/min, 100 L/min (@ $\Delta p = 10 \text{ Bar}$).

  • Supply Voltage: 24V DC.

  • Protection Rating: IP65.