Product Overview
The Rexroth KSDER1NB/HN11V (Rexroth Material Number R901151293) is a direct-operated solenoid directional spool valve from the proven Rexroth directional valve family. It controls the start, stop, and direction of hydraulic flow by shifting a hardened, precision-ground spool inside the valve housing via a wet-pin AC or DC solenoid. With a nominal size of NG6 (CETOP 3 / ISO 4401-03) and a spring-return, two-position or three-position spool configuration, this valve is engineered for fast, repeatable switching in high-cycle industrial hydraulic circuits. Its robust solenoid design, low-pressure drop characteristics, and leak-tight spool-to-bore fit make it a reliable control element for manifold-mounted and subplate-mounted systems requiring precise directional control of actuators, cylinders, and motors.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Directional Spool Valve (Direct-Operated) |
| Model Designation | KSDER1NB/HN11V (R901151293) |
| Nominal Size | NG6 (CETOP 3 / ISO 4401-03-02-0-05) |
| Operating Pressure | Up to 350 bar (ports P, A, B); 210 bar (port T) |
| Nominal Flow Rate | Up to 60 L/min (dependent on spool type) |
| Actuation | Wet-pin solenoid, spring return / spring centered |
| Spool Configuration | 4-way, 2-position or 3-position (per spool code) |
| Mounting & Connection | Subplate / manifold mounting per ISO 4401-03; DIN 24 V DC or 230 V AC solenoid options |
| Sealing | NBR (Buna-N) standard; FKM (Viton) available for high-temperature service |
Engineering Features & Advantages
- Precision Spool Metering: Hardened, lapped spool and bore deliver minimal internal leakage and consistent flow metering across the full pressure range, ensuring accurate actuator positioning and repeatable cycle performance.
- Fast Solenoid Response: Wet-pin solenoid design provides rapid, chatter-free shifting with short switching times, ideal for high-cycle automation and sequencing circuits.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with high fatigue-rated solenoid coils and corrosion-resistant housing finishes.
- Direct Fit Replacement: Precision-manufactured to original Rexroth specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
Its robust solenoid design, low-pressure drop characteristics, and leak-tight spool-to-bore fit make it a reliable control element for manifold-mounted and subplate-mounted systems requiring precise directional control of actuators, cylinders, and motors.
PRODUCT IMAGES


Rexroth KSDER1NB/HN11V / R901151293 Solenoid 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 KSDER1NB/HN11V / R901151293 Solenoid Directional Spool Valve. This Germany-made hydraulic component features a reliable spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.