Rexroth 4WRA & 4WRAP Valve | 4WRA6EB30-21/G24NK6/V-589 | 4WRAP6W7-04-30 | Proportional Directional Valve

Rexroth 4WRA & 4WRAP Direct-Operated Proportional Valves

Product Overview:

The Bosch Rexroth 4WRA series consists of high-quality, direct-operated proportional directional valves designed for stepless control of both hydraulic oil flow direction and velocity. This series is available in standard Size 6 (NG6) and Size 10 (NG10) nominal sizes. The 4WRAP series further enhances performance with specific spool configurations for more demanding dynamic tasks. In 2026, these valves are the go-to components for automated production lines, industrial presses, and material handling systems, ensuring smooth operation through high control repeatability and robust design.

Featured models: 4WRA6EB30-21/G24NK6/V-589 and 4WRAP6W7-04-30=G24K4/M=00.

Key Technical Advantages:

• Direct-Actuation Precision: Proportional solenoids act directly on the spool, providing rapid response and a compact footprint that reduces system complexity.

• Symmetrical & Asymmetrical Flow: Various spool functions (EA, EB, W, etc.) allow for symmetrical or customized flow distribution to match actuator needs.

• V-589 Custom Optimization: Features specialized seals or internal orifices (indicated by the “V” suffix), making the valve compatible with specific hydraulic fluids or high-temperature environments.

• Series 21 & 30 Platforms: Spanning the reliable 21 and the modern 30 design sequences, these valves offer optimized spool force balancing, lower hysteresis, and superior linearity.

• G24 Electrical Compatibility: Standard 24V DC power supply with K4 or NK6 industrial connectors, providing IP65-rated protection against dust and water ingress.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • 4WRA6EB30-21/G24NK6/V-589: Size NG6, EB spool, series 21, with special V-seals for harsh media.

  • 4WRAP6W7-04-30: Size NG6, W7 spool logic, high-performance series 30, includes manual override (M).

• Technical Specifications:

  • Max Operating Pressure: 315 bar (Ports P, A, B).

  • Rated Flow: Depends on spool size (e.g., 12, 15, 30 L/min).

  • Supply Voltage: 24V DC.

  • Static Characteristics: Hysteresis $\le 5\%$ (without feedback) / $\le 0.1\%$ (with feedback).