Product Overview
The Rexroth 4WRZE10W6-85-73/6EG24N9K31/F1D3M (material number R901014935) is a pilot-operated, two-stage proportional directional valve from the Bosch Rexroth WRZE series, designed for continuous, high-resolution control of flow direction and magnitude in industrial hydraulic systems. The valve combines a pilot stage equipped with a proportional solenoid and a main stage with position feedback, enabling precise, load-independent spool positioning proportional to the electrical command signal. With an NG10 (size 10) main stage and a nominal flow capacity of 85 L/min at a 73 bar pressure differential, this valve is engineered for demanding motion-control circuits requiring smooth acceleration, accurate velocity regulation, and reliable directional switching. The integrated on-board electronics (OBE) with a 24 VDC solenoid and central electrical connection provide fast response, excellent repeatability, and simplified system integration, making this valve a direct-fit replacement for OEM Rexroth proportional valve installations.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, Two-Stage) |
| Model Designation | 4WRZE10W6-85-73/6EG24N9K31/F1D3M |
| Material Number | R901014935 |
| Valve Size | NG10 (Size 10) |
| Spool Type / Configuration | W6 spool, 4-way, 3-position, closed-center with position feedback |
| Nominal Flow Rate | 85 L/min at Δp = 73 bar per land |
| Operating Pressure | Up to 315 bar (main stage, industrial standard) |
| Pilot Pressure | Internal pilot supply, external drain (standard configuration) |
| Solenoid Voltage | 24 VDC (EG24), proportional solenoid with on-board electronics |
| Electrical Connection | Central connector, N9 configuration, K31 terminal assignment |
| Command Signal | Analog ±10 V or 4–20 mA (via integrated OBE amplifier) |
Engineering Features & Advantages
- Precision Performance: The proportional directional valve (pilot-operated, two-stage) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth standards, allowing straightforward retrofit into existing hydraulic systems without rework.
- Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 85 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
The Rexroth 4WRZE10W6-85-73/6EG24N9K31/F1D3M (material number R901014935) is a pilot-operated, two-stage proportional directional valve from the Bosch Rexroth WRZE series, designed for continuous, high-resolution control of flow direction and magnitude in industrial hydraulic systems.
PRODUCT IMAGES
Rexroth 4WRZE10W6-85-73/6EG24N9K31/F1D3M / R901014935 Proportional Directional Valve
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Shop the genuine REXROTH 4WRZE10W6-85-73/6EG24N9K31/F1D3M / R901014935 Proportional Directional Valve. This Germany-made 24V DC hydraulic component features a pilot-operated proportional design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.