Product Overview
The Rexroth 4WRPEH6C4B12L-31/M/24A1 (material number R901382318) is a high-response, direct-operated proportional directional valve from the Bosch Rexroth 4WRPEH series, designed for precise, dynamic control of flow direction and magnitude in industrial hydraulic systems. Featuring a four-way, four-land spool design with integrated position feedback, this valve delivers fast step response, minimal hysteresis, and excellent repeatability, making it ideal for closed-loop position, velocity, and force control applications. The valve operates on a 24 V DC solenoid with integrated control electronics (OBE), providing analog command signal interface and fault diagnostics. Its robust housing and precision-machined spool ensure reliable performance in demanding continuous-duty industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (High-Response) |
| Model Designation | 4WRPEH6C4B12L-31/M/24A1 / R901382318 |
| Nominal Flow Rate | 12 L/min at Δp = 10 bar per land (size 6) |
| Operating Pressure | Up to 315 bar (P, A, B ports); T port max 160 bar |
| Spool Type | 4-way, 4-land, closed-center (C4 configuration) |
| Actuation | Proportional solenoid, single-side, 24 V DC |
| Control Electronics | Integrated OBE (On-Board Electronics) with analog command interface |
| Mounting & Connection | ISO 4401-03 (NG6) subplate mounting, CETOP 3 interface |
| Hysteresis | ≤ 1% of nominal stroke |
| Response Time | ≤ 10 ms (step response, typical) |
| Operating Temperature | -20°C to +80°C (fluid dependent) |
Engineering Features & Advantages
- Precision Performance: High-response proportional solenoid with integrated position feedback ensures accurate spool positioning, minimal hysteresis (≤ 1%), and excellent repeatability for demanding closed-loop control tasks.
- 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 OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
Its robust housing and precision-machined spool ensure reliable performance in demanding continuous-duty industrial environments.
PRODUCT IMAGES

Rexroth 4WRPEH6C4B12L-31/M/24A1 / R901382318 High-Response Proportional Directional Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH 4WRPEH6C4B12L-31/M/24A1 / R901382318 Solenoid Directional Control Valve. This Germany-made 24V DC hydraulic component features a high-response pilot stage, delivering leak-free, reliable fluid control for heavy-duty industrial systems.





