R900950342 Rexroth 4WREE6E16-2X Proportional Valve 24V

Product Overview:

The Bosch Rexroth 4WREE6E16-2X/G24K31/A1V-655 (material number R900950342) 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 315 bar. Proportional solenoids directly actuate the spool while an internal position sensor enables closed-loop control for high accuracy. Fully compliant with ISO 4401 mounting patterns, it offers 100% drop-in interchangeability with genuine Rexroth systems. Every unit is subjected to rigorous simulated duty-cycle testing for reliable performance in precision industrial hydraulic applications.

Technical Specifications (Bulleted List):

• Model: 4WREE6E16-2X/G24K31/A1V-655
• Material Number: R900950342
• Size: NG6 (CETOP 03 / ISO 4401-03)
• 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: 315 bar (component series 2X)
• Component Series: 2X
• Supply Voltage: 24 V DC
• Command Value: ±10 V (A1 interface)
• Electrical Connection: K31 (according to DIN EN 175201-804, 7-pole connector)
• Seal Material: FKM (V)
• Weight: Approx. 2.45–2.6 kg
• Hysteresis: ≤ 0.1%

Key Technical Advantages:

1. High-precision closed-loop position control: Integrated electrical position sensor and OBE electronics provide real-time spool feedback with hysteresis ≤ 0.1%, delivering 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 changes required.
3. Compact direct-operated design: Proportional solenoids actuate the spool directly for fast response and reliable operation up to 315 bar in a space-efficient package.
4. Premium seals and proven manufacturing: FKM seals compatible with a wide range of hydraulic fluids, precision-machined components and 100% duty-cycle testing ensure low internal leakage and long service life.

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 circuits
• Test stands and specialty systems demanding high-accuracy position or velocity control

Expert Maintenance Tips:

Verify subplate flatness and seal condition before installation; maintain fluid cleanliness at ISO 4406 20/18/15 or better. Use the matching K31 7-pole connector with proper shielding and keep command signals within ±10 V. Monitor valve temperature and internal leakage regularly; avoid excessive tank-line pressure. 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.