Rexroth 4WREE Proportional Valve | 4WREE6 4WREE10 | 4WREE6V16 4WREE6E08 | Integrated Electronics OBE

Rexroth 4WREE Series Direct-Operated Proportional Valves

Product Overview:

The Rexroth 4WREE series (available in Sizes 6 and 10) is a fundamental component for precise directional and flow control in industrial hydraulic systems. As a direct-operated proportional valve featuring Integrated Electronics (OBE), the 4WREE utilizes internal Electrical Position Feedback (LVDT) to achieve closed-loop control of the spool position. This ensures exceptional linearity and minimal hysteresis, even under fluctuating pressure or varying load conditions. It is widely applied in injection molding machines, woodworking machinery, machine tools, and general automation lines.

Featured models: 4WREE6E08-22/G24K31/A1V-655, 4WREE6V16-22/G24K31/A1V, and the 4WREE 10 range.

Key Technical Advantages:

• Integrated OBE Digital Control: The amplifier is mounted directly on the valve, simplifying PLC wiring and featuring factory-calibrated zero point and gain for true “plug-and-play” installation.

• High-Precision Position Feedback: The built-in inductive LVDT sensor monitors spool travel in real-time, guaranteeing control accuracy and dynamic response.

• Versatile Spool Configurations: Available in E-type (symmetrical flow) and V-type (progressive flow) options to suit everything from delicate micro-movements to rapid reversals.

• Heavy-Duty Construction: High-strength cast iron body and hardened spool ensure an extended operational life even under high-frequency cycling.

• EMC Shielding: Excellent electromagnetic compatibility (EMC) designed for stable performance in complex industrial electrical environments.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • 4WREE6E08: Size 6 (NG6), 8 L/min nominal flow, symmetrical E-spool, ideal for precise positioning.

  • 4WREE6V16: Size 6 (NG6), 16 L/min nominal flow, V-spool with progressive characteristics for smoother acceleration and deceleration.

  • 4WREE10: Size 10 (NG10), supporting higher flow requirements with operating pressures up to 31.5 MPa.

• Core Technical Specs:

  • Max Operating Pressure: Up to 315 bar (P, A, B ports); 210 bar (T port).

  • Supply Voltage: 24V DC (G24).

  • Control Signal: $\pm10\text{V}$ voltage input (A1V).

  • Hysteresis: $< 0.1\%$.

  • Protection Class: IP65 rated.