R901495957 Rexroth 4WREE6E16-3X Proportional Valve 24V

Product Overview

The Bosch Rexroth 4WREE6E16-3X/V/24A1-655 (material number R901495957) is a direct-operated proportional directional valve with electrical position feedback and integrated electronics (OBE). Size NG6, nominal flow 16 L/min at Δp = 10 bar, maximum operating pressure 350 bar. Proportional solenoids directly actuate the spool while an internal LVDT provides closed-loop position control for high accuracy. Fully compliant with ISO 4401 mounting patterns, it offers 100% drop-in interchangeability with genuine Rexroth systems. Every unit undergoes rigorous simulated duty-cycle testing for reliable performance in demanding industrial and mobile hydraulic applications.

Technical Specifications 

• Model: 4WREE6E16-3X/V/24A1-655
• Material Number: R901495957
• Size: NG6 (CETOP 03 / ISO 4401-03-02-0-05)
• Type: Direct-operated proportional directional valve with electrical position feedback and integrated electronics (OBE)
• Spool Symbol: E
• Nominal Flow: 16 L/min (Δp = 10 bar)
• Maximum Flow: 80 L/min
• Maximum Operating Pressure: Ports P, A, B 350 bar; Port T 210 bar
• Component Series: 3X
• Supply Voltage: 24 V DC
• Command Value: ±10 V (A1 interface)
• Seal Material: FKM (V)
• Electrical Connection: 7-pole connector (6+PE) according to EN 175201-804
• Weight: Approx. 2.6 kg
• Hysteresis: ≤ 0.1%

Key Technical Advantages:

1. High-precision closed-loop position control: Integrated electrical position sensor and OBE electronics deliver real-time spool feedback with hysteresis ≤ 0.1%, ensuring excellent repeatability and dynamic response.
2. 100% drop-in interchangeability: Standard ISO 4401-03 subplate mounting and electrical interface are fully compatible with original Rexroth 4WREE valves — no circuit or wiring modifications required.
3. Direct-operated design with high pressure capability: Proportional solenoids actuate the spool directly for compact construction and reliable operation up to 350 bar.
4. Premium seals and long service life: FKM seals compatible with a wide range of hydraulic fluids, precision-machined spool and body, plus 100% duty-cycle testing guarantee low internal leakage and extended durability.

Application Areas:

• Injection molding and die-casting machines requiring precise flow and directional control
• Machine tools, presses and industrial automation hydraulic systems
• Mobile equipment and construction machinery proportional directional circuits
• Test stands and specialty systems demanding high-accuracy position or velocity control

Expert Maintenance Tips:

Verify subplate flatness and seal integrity before installation; maintain fluid cleanliness at ISO 4406 20/18/15 or better. Use the matching 7-pole connector with proper shielding and keep command signals within ±10 V. Monitor valve temperature and leakage regularly; ensure tank-line pressure does not exceed 210 bar. Prefer same-series OBE versions for replacement to preserve closed-loop performance. Protect the valve cavity from contamination during service and perform system bleeding plus functional testing after installation.