Product Overview
The Rexroth 4WEH16J1X/6HG24N9ETK4/B10 (Material Number R901531099) is a high-performance electro-hydraulic directional spool valve from the renowned Rexroth WEH series, size NG16 (Cetop 7 / ISO 4401-07). This pilot-operated, solenoid-controlled directional valve is engineered to manage the start, stop, and direction of hydraulic fluid flow in demanding industrial circuits. The “J” spool configuration provides a tandem center position, while the integrated “6HG24N9ETK4” pilot valve designation indicates a high-power wet-pin AC/DC solenoid with manual override and a spring-centered main spool. Designed for manifold mounting, this valve delivers precise, reliable directional control in high-pressure hydraulic systems, making it a critical component in complex automation and power transmission applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electro-Hydraulic Directional Spool Valve (Pilot Operated) |
| Model Designation | 4WEH16J1X/6HG24N9ETK4/B10 / R901531099 |
| Size / Nominal Flow | NG16 (Cetop 7); Up to 300 L/min (dependent on pilot pressure and spool position) |
| Operating Pressure | Up to 350 bar (Main Ports P, A, B); Pilot Pressure up to 315 bar |
| Spool Type & Function | Type “J” Spool – Tandem Center, Spring-Centered, 3-Position 4-Way |
| Actuation | High-Power Wet-Pin Solenoid (24V DC), with Manual Override (N9) |
| Mounting & Connection | Subplate Mounting per ISO 4401-07 / DIN 24340 Form NG16; CETOP 7 Interface |
| Seal Material | NBR (Nitrile) – Standard for Mineral Oil Based Hydraulic Fluids |
Engineering Features & Advantages
- Precision Spool & Sleeve Assembly: The hardened, precision-ground spool and sleeve pair ensures minimal internal leakage, low hysteresis, and exceptionally long service life even under high cycle rates.
- Robust Pilot-Operated Design: Utilizes a reliable pilot valve to control the main spool, allowing for high flow capacity with low solenoid force, ensuring consistent shifting performance regardless of main system pressure fluctuations.
- Wet-Pin Solenoid Technology: The “6HG24N9ETK4” solenoid features a wet-pin armature design that provides high switching force, excellent heat dissipation, and protection against environmental ingress (IP65 rated).
- High-Flow Two-Stage Design: The pilot-operated main stage is built for high flow capacity — suited to directional control of large actuators, presses and power units.
- Low-Power Pilot Control: The pilot solenoid (24 V DC (high-power coil)) with the standard N9 / K4 interface matches conventional machine control cabinets.
Typical Industrial Applications
Designed for manifold mounting, this valve delivers precise, reliable directional control in high-pressure hydraulic systems, making it a critical component in complex automation and power transmission applications.
Understanding the Model Code: 4WEH16J1X/6HG24N9ETK4/B10 / R901531099
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 |
|---|---|
| 4WEH16J1X6HG24N9ETK4B10 | Electro-Hydraulic Directional Spool Valve (Pilot Operated) — NG16 (ISO 4401 / DIN 24340) |
| Spool H16 | Spool type H16 — 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) |
| R901531099 | 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 is a two-stage, pilot-operated valve for high-flow main circuits. The small pilot solenoid controls the large main stage, so switching power stays low while flow capacity rises. Confirm the pilot oil arrangement (internal or external) for your circuit before ordering — send us your complete model code if you are unsure. Related listings:
- Rexroth 4WEH16J72/6EG24N9ETS2K4/B10 / R900929900 Electro-Hydraulic Directional Valve
- Rexroth 4WEH16E1X/6HG24N9ETK4/B10 / R901531080 Electro-Hydraulic Directional Valve
Frequently Asked Questions
Why is this a pilot-operated (two-stage) valve?
Pilot operation lets a small solenoid actuate a large main spool — the standard solution for high flow rates with low electrical power, used for the main directional control of large actuators and presses.
What should I check before ordering?
Confirm the complete code and material number (R901531099) on your nameplate, and verify the pilot oil supply arrangement (internal vs external) for your circuit.
What do N9 and K4 mean?
N9 = concealed manual override on the pilot valve; K4 = plug connector to DIN EN 175301-803 (ISO 4400).
Is the coil voltage important?
Yes — this unit uses a 24 V DC (high-power coil) pilot solenoid, and the coil must match your control circuit.
PRODUCT IMAGES
Rexroth 4WEH16J1X/6HG24N9ETK4/B10 / R901531099 Electro-Hydraulic 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 4WEH16J1X/6HG24N9ETK4/B10 / R901531099 Solenoid Directional Spool Valve. This Germany-made 24V DC hydraulic component features a robust spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
