Product Overview
The Rexroth 4WRPEH6C4B12L-31/M/24A1-561 (material number R901412522) is a high-response, direct-operated proportional directional valve from the Bosch Rexroth 4WRPEH series. It is designed to control the direction and magnitude of flow in hydraulic systems in proportion to an electrical input signal, making it a core element in closed-loop and open-loop motion control architectures. The valve features a four-way, three-position (4/3) spool configuration with a nominal size of NG6 (CETOP 3 / ISO 4401-03) and a rated flow of 12 L/min per metering edge at a 10 bar pressure drop. Actuation is achieved via a single proportional solenoid with integrated position feedback, delivering fast, precise, and repeatable spool positioning. The “L” spool designation indicates a linear flow characteristic with a defined overlap, providing stable control behavior across the full stroke. This valve is engineered for demanding industrial applications requiring high dynamic response, low hysteresis, and excellent flow linearity.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (4/3-way, direct-operated) |
| Model Designation | 4WRPEH6C4B12L-31/M/24A1-561 / R901412522 |
| Nominal Size | NG6 (CETOP 3 / ISO 4401-03) |
| Spool Type & Function | 4/3-way, “L” spool (linear characteristic, defined overlap) |
| Rated Flow | 12 L/min per metering edge at Δp = 10 bar |
| Operating Pressure | Up to 315 bar (P, A, B ports); 210 bar (T port) |
| Actuation | Single proportional solenoid with position feedback |
| Electrical Supply | 24 V DC (24A1 solenoid) |
| Mounting & Connection | Subplate mounting per ISO 4401-03 / CETOP 3; standard Rexroth interface |
| Hysteresis | ≤ 3% of nominal stroke (typical) |
| Response Time | ≤ 20 ms (typical, full stroke) |
Engineering Features & Advantages
- Precision Performance: The integrated single proportional solenoid with position feedback ensures precise, repeatable control with low hysteresis and stable performance 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 12 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
This valve is engineered for demanding industrial applications requiring high dynamic response, low hysteresis, and excellent flow linearity.
PRODUCT IMAGES
REXROTH 4 WRPEH6C4B12L-31/M/24A1-561 / R901412522 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 4 WRPEH6C4B12L-31/M/24A1-561 / R901412522 Solenoid Directional Valve. This Germany-made 24V DC hydraulic component features a direct-operated spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.