Rexroth 4WRPEH Proportional Valve | 0811404803 | 0811404163 | 0811404603 | 4WRPEH6C4B40L-2X

Rexroth 4WRPEH High-Response Proportional Directional Valves

Product Overview:

The Bosch Rexroth 4WRPEH series represents the pinnacle of proportional valve technology. As a high-response directional control valve with Integrated On-Board Electronics (OBE), it utilizes closed-loop spool position feedback to deliver dynamic performance and precision rivaling that of servo valves. Available in Size 6 (NG6) and Size 10 (NG10), the 4WRPEH is engineered for 2026 high-precision presses, plastic machinery, and metal forming equipment, providing ultimate control over position, velocity, and pressure.

Featured models & part numbers: 0811404803, 0811404163, 0811404603, 0811404613, and 4WRPEH6C4B40L-2X/G24K0/A1M.

Key Technical Advantages:

• Servo-Level Dynamics: Optimized actuation paired with integrated feedback allows for frequency response and switching speeds far exceeding standard proportional valves, ideal for closed-loop circuits.

• Integrated OBE Digital Electronics: The amplifier is mounted directly on the valve, utilizing A1 ($\pm 10\text{V}$) command signals for precise control while minimizing wiring complexity and maximizing EMI resistance.

• Closed-Loop Spool Positioning: An internal inductive position transducer monitors spool movement in real-time, reducing hysteresis to minimal levels ($\le 0.1\%$) and ensuring superior linearity.

• High-Pressure Reliability: Rated for operating pressures up to 315 bar, maintaining stable control characteristics even under extreme industrial conditions.

• Proven 2X Series Platform: Built on Rexroth’s classic 2X design sequence, offering exceptional mechanical robustness and an extended service life.

Detailed Specifications & Part Number Matrix:

• Featured Material Numbers:

  • 0811404803 / 0811404163: Size NG6, high-response configuration, commonly used in precision injection molding.

  • 0811404603 / 0811404613: High-performance flow-specific variants with integrated feedback.

  • 4WRPEH6C4B40L-2X: Size NG6, C4 spool function, 40 L/min rated flow, G24 power supply.

• Technical Specifications:

  • Nominal Size: Size 6 / Size 10.

  • Max Operating Pressure: 315 bar.

  • Command Signal: $\pm 10\text{V}$ (A1 interface) or $4-20\text{mA}$ (depending on configuration).

  • Electrical Connection: 6-pin + PE standard connector.