Product Overview
The Rexroth 4WMM 10 D50/F/M (Material Number R901350232) is a manually actuated, direct-operated directional spool valve from the proven 4WMM series. Designed for precise control of start, stop, and direction of hydraulic fluid flow, this valve features a robust cast iron housing and a hardened, precision-ground spool. The “D50” designation indicates a spring-centered, detented spool configuration, while the “F/M” suffix denotes the specific manual lever actuation with a detent mechanism for reliable position holding. Engineered for demanding industrial environments, this valve ensures minimal pressure drop, high leakage integrity, and long service life in high-cycle applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Directional Control Valve (Manual Spool Valve) |
| Model Designation | 4WMM 10 D50/F/M / R901350232 |
| Operating Pressure | Up to 315 bar (Max. working pressure at ports P, A, B) |
| Nominal Flow Rate | Up to 120 L/min (dependent on spool type and pressure drop) |
| Mounting & Connection | Subplate mounting, ISO 4401-05 / CETOP 5 / NG10 interface |
| Actuation Type | Manual lever with detent (F/M configuration) |
| Spool Type | D50 (Spring-centered, detented, closed center) |
| Hydraulic Fluid | Mineral oil based hydraulic fluids (HL, HLP, HLPD, HVLP) |
| Fluid Temperature Range | -20°C to +80°C (NBR seals standard) |
| Viscosity Range | 10 to 800 mm²/s (cSt) recommended |
Engineering Features & Advantages
- Precision Spool & Sleeve Assembly: The hardened, ground spool and honed sleeve ensure minimal internal leakage, precise metering characteristics, and consistent response across the entire pressure range.
- Manual Lever with Detent: The F/M actuation provides tactile feedback and secure position holding, preventing unintended spool movement due to vibration or system pressure fluctuations.
- High Flow Capacity: Optimized flow passages within the NG10 (CETOP 5) body minimize pressure drop, reducing heat generation and improving overall system efficiency.
- 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.
Typical Industrial Applications
Engineered for demanding industrial environments, this valve ensures minimal pressure drop, high leakage integrity, and long service life in high-cycle applications.
PRODUCT IMAGES





Rexroth 4WMM 10 D50/F/M / R901350232 Manual 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 4WMM 10 D50/F/M / R901350232 Manual Directional Spool Valve. This Germany-made hydraulic component features a robust spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.





