Product Overview
The Rexroth 4WE 10 D51/HG24N9K4/M (Material Number R901391200) is a high-performance, direct-operated solenoid directional spool valve designed for precise control of start, stop, and direction of fluid flow in industrial hydraulic systems. As part of the renowned Rexroth 4WE series, this valve features a robust 4-way, 3-position (4/3) spool configuration with a “D” type center condition, ensuring reliable load holding and system depressurization when de-energized. The “HG24” solenoid designation indicates a high-power wet-pin AC/DC solenoid with a nominal voltage of 24V DC, while the “N9” and “K4” suffixes denote specific electrical connections and manual override features. Engineered for demanding B2B environments, this valve provides exceptional response times, low-pressure drop, and long service life, making it a critical component for precise motion control in complex hydraulic circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Operated Directional Spool Valve (4/3 Way) |
| Model Designation | 4WE 10 D51/HG24N9K4/M / R901391200 |
| Spool Type | Type D (Closed Center, P, A, B, T blocked in center position) |
| Size / Nominal Flow | NG10 (CETOP 5 / ISO 4401-05) — Up to 120 L/min |
| Operating Pressure | Up to 350 bar (Ports P, A, B); 210 bar (Port T) |
| Solenoid Voltage | 24V DC (High Performance “HG” Series) |
| Electrical Connection | Connector K4 (DIN EN 175301-803, Form A, 3-Pole + PE) |
| Manual Override | N9 (Hidden, push-button style, no detent) |
| Mounting & Connection | Subplate Mounting (ISO 4401-05-04-0-05) |
Engineering Features & Advantages
- Precision Spool & Sleeve Design: The hardened and ground spool within a precision-honed sleeve ensures minimal internal leakage, precise metering characteristics, and high repeatability for accurate actuator positioning.
- High-Power Wet-Pin Solenoid: The “HG” solenoid provides high switching forces, ensuring reliable operation even at maximum system pressure and flow rates, while the wet-pin design offers superior heat dissipation and quiet operation.
- Model-Specific Fit: Supplied to the exact Rexroth code 4WE 10 D51/HG24N9K4/M / R901391200 with standard N9 / K4 interfaces, so it fits existing 4WE installations without modification.
- Circuit-Matched Spool: The spool variant supplied matches this listing’s code; for a different centre condition or metering requirement, compare the related listings or send us your original code.
Typical Industrial Applications
The Rexroth 4WE 10 D51/HG24N9K4/M (Material Number R901391200) is a high-performance, direct-operated solenoid directional spool valve designed for precise control of start, stop, and direction of fluid flow in industrial hydraulic systems.
Understanding the Model Code: 4WE 10 D51/HG24N9K4/M / R901391200
Each block of the Rexroth model code describes one attribute of the valve. Use this breakdown together with the specification table above to confirm the exact configuration you need:
| Code Block | Meaning |
|---|---|
| 4WE 10 | Solenoid Operated Directional Spool Valve (4/3 Way) — NG10 (ISO 4401-05 / CETOP 5) |
| Spool D51 | Spool type D51 — metering and centre condition for this variant are listed in the specification table |
| HG24 | Solenoid — 24 V DC (high-power coil) |
| K4 | Plug connector to DIN EN 175301-803 (ISO 4400) |
| R901391200 | Rexroth material (order) number |
Always verify the complete code and material number against the nameplate on your existing valve before ordering — body size, spool type and coil voltage must all match.
Choosing the Right Variant
This listing is the 24 V DC (high-power coil) version of the 4WE body. Coil voltage and spool type are the two attributes that decide compatibility in most retrofits — the same body size is available with different coils (EG24 / EW110 / W230 …) and different spools. Related listings:
- REXROTH 4WE 10 D52/HG24N9K4/M / R9010891200 Solenoid Operated Directional Spool Valve
- REXROTH 4WE 10 D52/HG24N9K4/M / R901391200 Solenoid Operated Directional Spool Valve
Frequently Asked Questions
Is the coil voltage important?
Yes. This unit uses a 24 V DC (high-power coil) solenoid; the coil is voltage-specific and must match your control circuit.
Can I change the coil voltage after installation?
The valve body is shared across the 4WE series, but the solenoid coil itself is voltage-specific; for a different supply voltage you need the matching coil (or the complete valve in that voltage variant). Confirm the coil part number with our team.
What do N9 and K4 mean?
N9 = concealed manual override for emergency actuation; K4 = plug connector to DIN EN 175301-803 (ISO 4400) — the standard electrical interface on most machines using 4WE valves.
What should I check before ordering?
Match the complete model code and material number (R901391200) against your valve nameplate, and confirm your control-circuit voltage and spool requirement.
PRODUCT IMAGES
REXROTH 4WE 10 D51/HG24N9K4/M / R901391200 Solenoid Operated 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 4WE 10 D51/HG24N9K4/M / R901391200 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.