Rexroth 4WRE Valve | 4WRE6V16 4WRE6E32 | 4WRE6V32-2X/G24K4/V | Proportional Directional Valve

Rexroth 4WRE Series Direct-Operated Proportional Valves

Product Overview:

The Rexroth 4WRE series is a high-performance direct-operated proportional directional valve range designed to control both the direction and magnitude of hydraulic flow. Actuated by two proportional solenoids with central threads and detachable coils, the 4WRE series offers a simple yet highly reliable solution for stepless speed regulation of hydraulic actuators. From the precision-focused 4WRE6V16 to the high-capacity 4WRE6E32, these valves provide excellent linearity via precision-ground spools, making them the industry standard for machine tools, plastics processing, and general automation.

Featured models: 4WRE6V16-21/G24K4/V-822, 4WRE6E32-2X/G24K4/V, and 4WRE6V32-2X/G24K4/V.

Key Technical Advantages:

• Direct Proportional Control: The spool is actuated directly by proportional solenoids, providing rapid response independent of pilot pressure.

• Symmetrical & Progressive Spools: Available in E-type (symmetrical flow) and V-type (progressive flow characteristics) for precise micro-metering and dynamic switching.

• Robust Series 2X Design: The 2X design series optimizes electromagnetic performance and internal flow galleries for enhanced operational stability.

• Thermal & Chemical Compatibility: Models with the V suffix feature FKM (Viton) seals, offering superior resistance to high temperatures and various synthetic hydraulic fluids.

• Serviceability: Designed with detachable G24K4 solenoids, allowing for coil replacement without disturbing the hydraulic circuit, significantly reducing downtime.

Detailed Specifications & Parameters:

• Core Model Matrix:

  • 4WRE6V16: Size 6 (NG6), 16 L/min nominal flow, V-spool for smooth acceleration characteristics.

  • 4WRE6E32: Size 6 (NG6), High-capacity version with 32 L/min nominal flow, E-spool for symmetrical bi-directional control.

  • 4WRE6V32: Size 6 (NG6), 32 L/min nominal flow, balancing large capacity with fine control precision.

• Core Technical Specs:

  • Max Operating Pressure: Up to 315 bar (31.5 MPa) at P, A, and B ports.

  • Control Interface: Proportional DC current/voltage, typically paired with external amplifiers (e.g., Rexroth VT series).

  • Supply Voltage: 24V DC (G24).

  • Seal Material: FKM (Viton), suitable for oil temperatures from $-20^\circ\text{C}$ to $+80^\circ\text{C}$.

  • Hysteresis: $\le 5\%$.