Rexroth 4WRDE Series Valve | 4WRDE16 4WRDE32 | Pilot Operated Proportional Valve | V1-200L V1-400L

4WRDE Series 3-Stage Pilot Operated Proportional Valves

Product Overview: The 4WRDE series is a high-performance member of the Rexroth proportional valve family, featuring a 3-stage valve structure. This series utilizes a high-performance pilot valve (typically a 4WRPEH) to drive the main stage, delivering exceptional flow control capacity and dynamic stability. With an integrated electronic feedback system (LVDT), the spool position is monitored and corrected in real-time, ensuring minimal hysteresis and high repeatability under varying pressure conditions. It is widely used in heavy-duty forging presses, continuous casting equipment in steel mills, and automated systems requiring massive flow and high-precision control.

Featured models: 4WRDE16-V1-200L-52/6L24K9/MR-280, 4WRDE32-V1-400L-52/6L24K9/VR, and the pilot component VORSTEUERVENTIL-22/4WRDE16-52/V.

Key Technical Advantages:

• 3-Stage Proportional Control: Designed for large bores (NG16/NG32), ensuring micron-level control precision even in ultra-high flow environments.

• Integrated Electronics (OBE): The control circuitry is integrated onto the valve, simplifying connections to PLCs or motion controllers and enhancing electromagnetic immunity.

• High Dynamic Response: Optimized pilot oil circuitry allows the main spool to respond rapidly to commands, making it ideal for pressure closed-loop or high-frequency reciprocating motions.

• Tiered Flow Options: Available in various rated flow specifications such as 200L (Size 16) and 400L (Size 32) to meet different actuator requirements.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • 4WRDE16-V1-200L: Size 16 (NG16), V1 spool function, 200 L/min rated flow, Series 52 design.

  • 4WRDE32-V1-400L: Size 32 (NG32), V1 spool function, 400 L/min rated flow.

  • 24K9: Equipped with a 24V DC power supply interface.

• Core Technical Specs:

  • Mounting Interface: Complies with ISO 4401 industrial standards.

  • Max Operating Pressure: Up to 35 MPa (350 bar) on P, A, and B ports.

  • Feedback Signal: Integrated Linear Variable Differential Transformer (LVDT) for full closed-loop control.

  • Pilot Configuration: Flexible selection of internal/external pilot supply and internal/external drain modes.