Product Overview
The Rexroth -22/STW0175-12/ / R901284873 is a high-performance directional spool valve engineered for precise control of hydraulic fluid flow direction, distribution, and pressure in demanding industrial circuits. As part of Rexroth’s renowned directional spool valve family, this component utilizes a precision-machined spool and bore assembly to direct pressurized oil to specific actuator ports with minimal internal leakage and fast response. The valve serves as a critical control element in hydraulic power units, enabling start, stop, and directional movement of cylinders and motors. With its robust housing and proven spool-in-body design, the R901284873 delivers reliable switching performance and long service life in continuous-duty industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Directional Control Valve / Directional Spool Valve |
| Model Designation | -22/STW0175-12/ / R901284873 |
| Manufacturer | Rexroth (Bosch Rexroth) |
| Operating Pressure | Standard Industrial Grade (Up to rated bar per Rexroth spool valve series) |
| Actuation Method | Spool-type directional actuation (solenoid/pilot configuration per model code) |
| Mounting & Connection | Standard ISO / Rexroth Interface |
| Seal & Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP) per DIN 51524 |
Engineering Features & Advantages
- Precision Spool Metering: The hardened, precision-ground spool and matched bore deliver accurate flow direction control with minimal internal leakage and consistent response across the operating range.
- Fast Switching Response: Optimized spool geometry and flow passages enable rapid directional changeover, reducing cycle times in automated hydraulic systems.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a robust cast housing that withstands high pressure and mechanical vibration.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring drop-in installation without modification.
Typical Industrial Applications
This Rexroth directional spool valve is widely deployed in plastic injection molding machines for mold open/close and injection sequence control, metallurgical presses for ram direction and pressure holding, CNC machine tools for tool clamping and pallet changing circuits, and general hydraulic power units requiring reliable directional control of cylinders and motors. It is also suitable for construction and marine hydraulic systems where precise spool actuation and durable performance are essential.
PRODUCT IMAGES

REXROTH -22/STW0175-12/ / R901284873 Directional Control Valve
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- 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 -22/STW0175-12/ / R901284873 Solenoid Directional Control Valve. This Germany-made 12 VDC hydraulic component features a spool-type directional design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.