Product Overview
The Rexroth 4WMM 10 D50/F/M (Material Number R901350272) 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 in industrial systems. Featuring a robust cast iron housing and a hardened, precision-ground spool, this valve delivers reliable switching performance in the 10 size (NG10 / CETOP 5) interface. The “D50” spool type provides a specific flow path configuration, while the “F/M” designation indicates the manual actuation style with detent positioning, allowing operators to select and hold spool positions without continuous hand force. Engineered for demanding B2B hydraulic circuits, the 4WMM 10 D50/F/M is a direct-fit replacement for OEM installations requiring dependable manual directional control.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Directional Control Valve (Manual Directional Spool Valve) |
| Model Designation | 4WMM 10 D50/F/M / R901350272 |
| Nominal Size | NG10 (CETOP 5 / ISO 4401-05) |
| Spool Type | D50 Configuration (specific flow path per Rexroth standard) |
| Actuation Type | Manual lever with detent (F/M variant) |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Maximum Flow Rate | Up to 120 L/min (typical for NG10) |
| Mounting & Connection | Subplate mounting, ISO 4401-05 / CETOP 5 interface |
| Hydraulic Fluid | Mineral oil based hydraulic fluids (HL, HLP, HFC, HFD as per Rexroth guidelines) |
| Seal Material | NBR (standard), optional FKM for high-temperature or special fluids |
Engineering Features & Advantages
- Precision Spool & Sleeve: Hardened and ground spool matched to a precision-honed sleeve ensures minimal internal leakage, low hysteresis, and consistent directional control across the full pressure range.
- Manual Detent Actuation: The F/M lever with detent provides tactile position feedback and allows the spool to remain in the selected position without continuous operator effort, improving safety and reducing fatigue in manual control stations.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- 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
The Rexroth 4WMM 10 D50/F/M (Material Number R901350272) 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 in industrial systems.
PRODUCT IMAGES


Rexroth 4WMM 10 D50/F/M / R901350272 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 / R901350272 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.





