Product Overview
The Rexroth S10A1.0 (Material No. R900420531) is a direct-operated directional spool valve from the proven Rexroth S10 series, designed for precise control of start, stop, and direction of hydraulic fluid flow in industrial hydraulic systems. This valve utilizes a manually or mechanically actuated spool that shifts within a precision-machined housing to connect or block flow paths between the pressure (P), tank (T), and working ports (A/B). With a nominal size of NG10 (Cetop 5 / ISO 4401-05) and a nominal flow capacity of 10 L/min, the S10A1.0 is engineered for compact, low-flow circuits requiring reliable and repeatable directional control. Its robust spool-and-sleeve design ensures minimal internal leakage, fast response, and long service life, making it a dependable component for machine tools, test rigs, and general industrial hydraulic power units.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Directional Spool Valve (Hydraulic Valve) |
| Model Designation | S10A1.0 / R900420531 |
| Nominal Size | NG10 (Cetop 5 / ISO 4401-05) |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Nominal Flow Rate | 10 L/min |
| Spool Type / Function | A1.0 – 2-position, 3-way or 4-way spool configuration (per Rexroth S10 series) |
| Actuation | Manual / mechanical (lever or cam actuation, depending on configuration) |
| Mounting & Connection | Subplate mounting, ISO 4401-05 / Cetop 5 interface |
| Seal Material | NBR (standard); FKM available on request |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP, HLPD per DIN 51524) |
Engineering Features & Advantages
- Precision Spool Metering: The hardened and ground spool ensures accurate flow control and minimal internal leakage, providing reliable directional switching in low-flow hydraulic circuits.
- Compact NG10 Design: Space-saving Cetop 5 footprint allows easy integration into existing manifolds and subplate assemblies without requiring additional piping modifications.
- 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 spool-and-sleeve design ensures minimal internal leakage, fast response, and long service life, making it a dependable component for machine tools, test rigs, and general industrial hydraulic power units.
PRODUCT IMAGES
REXROTH S10A1.0 / R900420531 Directional Spool 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 S10A1.0/ / R900420531 Solenoid Directional Spool Valve. This Germany-made 24V DC hydraulic component features a reliable spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.