Rexroth Type 4WREE 4WRE Proportional Valve | 4WREE6E16-3X | 4WREE6E08 | Integrated Electronics OBE | NG6 CETOP 3
| Model Number | 4WRA, 4WRAE, 4WRE, 4WREE, 4WREE6 E16-3X/V/24A1, 4WREE 6E08-24/G24K31/A1V |
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Product Description
4WRA / 4WRE Series High-Performance Proportional Valves (with OBE)
Product Overview: The Rexroth 4WRE and 4WREE series are the premier choice for precision closed-loop control in industrial hydraulics. These direct-operated proportional directional valves are fully compliant with ISO 4401-03 (NG6 / CETOP 3) standards. The 4WREE variants feature Integrated On-Board Electronics (OBE) and Electrical Position Feedback (LVDT), allowing real-time monitoring and correction of the spool position. This ensures exceptional linearity, minimal hysteresis, and rapid dynamic response—perfect for injection molding, pressing, and precision synchronization.
Featured models include: 4WREE6E16-3X/V/24A1, 4WREE6E08-24/G24K31/A1V, and the complete 4WRA/4WRE range.
Key Technical Advantages:
Integrated OBE Electronics: The 4WRAE/4WREE models include an onboard amplifier to process analog signals directly, simplifying wiring and enhancing noise immunity (Plug-and-Play).
Precision LVDT Feedback: The spool is equipped with an inductive position transducer to eliminate the effects of friction and hydraulic force through internal closed-loop regulation.
Proven 3X Design Series: The 3X series features optimized internal galleries, providing higher flow capacity and lower pressure drop.
Environmental Resilience: Utilizes V (Viton/FKM) seals for superior temperature and chemical resistance, compatible with various synthetic hydraulic fluids.
Detailed Specifications & Parameters:
Featured Model Matrix:
4WREE6E16-3X/V/24A1: Size 6, E16 spool (16 L/min), 3X series, 24V supply, with OBE.
4WREE6E08-24/G24K31/A1V: Size 6, E08 spool (8 L/min), with G24K31 connector spec.
Full Range: Includes 4WRA/4WRAE (no feedback) and 4WRE/4WREE (with feedback).
Core Technical Specs:
Mounting Standard: ISO 4401-03 / NG6 / CETOP 3.
Max Operating Pressure: Rated at 31.5 MPa (315 bar).
Command Signal: Analog ±10V or 4-20mA (depending on configuration).
Protection Class: IP65 rating for integrated electronics.



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