Rexroth 4WRLE & 4WRPH Valve | 4WRLE25V400L | 4WRL5 | 4WRPH6

Rexroth 4WRPH, 4WRL & 4WRLE Series Proportional Servo Valves

Product Overview:

The Rexroth Proportional Servo Valve Series represents the pinnacle of industrial hydraulic precision. This series provides a comprehensive solution ranging from the direct-operated 4WRPH6 (NG6) to the high-flow two-stage 4WRLE25 (NG25). Notably, the 4WRLE25V400L delivers a massive 400 L/min flow capacity, utilizing On-Board Electronics (OBE) and electrical feedback for precise control of velocity and position in heavy-duty actuators. The WZ350SJ series is engineered for specialized 350 Bar high-pressure applications, ensuring servo-grade stability under extreme conditions.

Featured models on this page include the high-dynamic 4WRPH6, the compact 4WRL5, and the high-power pilot-operated 4WRLE25.

Key Technical Advantages:

• Full Range of Sizes: From the lightweight Size 5/6 to the heavy-duty Size 25, catering to all industrial requirements.

• On-Board Electronics (OBE): Integrated amplifiers simplify wiring while providing superior Electromagnetic Compatibility (EMC) and precision control.

• High Dynamic Response: Optimized spool designs and feedback mechanisms offer high frequency response bandwidth, perfectly suited for closed-loop control.

• High-Pressure Resilience: Supports operating pressures up to 350 Bar, ideal for metallurgy, presses, and heavy machinery.

Detailed Specifications & Parameters:

• Core Series: Rexroth Proportional & Servo Series (NG6 to NG25).

• Featured Model Matrix:

  • 4WRLE25V400L-41/MXY/24A1 (Size 25, 400 L/min, 2-Stage feedback)

  • WZ350SJ-30/G24K0/A1M (350 Bar Specialty high-pressure spec)

  • 4WRPH6 / 4WRL5 (High-dynamic direct/two-stage proportional control)

• Core Performance Specs:

  • Nominal Size: NG6 (Size 6) up to NG25 (Size 25).

  • Rated Flow: Up to 400 L/min (@ $\Delta p = 10 \text{ Bar}$).

  • Operating Pressure: Rated at 315 Bar to 350 Bar.

  • Supply Voltage: Standard 24V DC.