Product Overview
The Rexroth 4WEH16J7X/6EG24N9ETK4/B10 (Material No. R900930431) is a high-performance electro-hydraulic directional spool valve from the proven Rexroth 4WEH series, size NG16 (DIN 24340 / CETOP 7 interface). This pilot-operated, two-stage valve combines a solenoid-actuated pilot valve with a hydraulically controlled main spool stage, enabling reliable switching of large flow volumes with minimal electrical actuation power. Configured with spool type “J” (open center, tandem position) and a “7X” series design, the valve is engineered for precise directional control, load holding, and safe depressurization of actuators in demanding industrial hydraulic circuits. The integrated 6EG24 pilot valve operates on 24 V DC, while the N9 designation indicates a concealed manual override and the ETK4 variant denotes a specific electrical connection and throttle configuration for controlled pilot oil supply. As a genuine Rexroth component, it delivers the repeatability, leakage integrity, and long service life expected in continuous-duty hydraulic systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electro-Hydraulic Directional Control Valve (Pilot-Operated Spool Valve) |
| Model Designation | 4WEH16J7X/6EG24N9ETK4/B10 |
| Material Number | R900930431 |
| Nominal Size | NG16 (CETOP 7 / DIN 24340) |
| Spool Type | Type “J” — Open Center (Tandem) Spool Configuration |
| Series | 7X (700 Series Design) |
| Pilot Valve Actuation | Solenoid Operated, 24 V DC (6EG24) |
| Operating Pressure | Up to 350 bar (main stage, standard industrial grade) |
| Pilot Pressure | Internal or external pilot oil supply (configurable) |
| Manual Override | Concealed (N9 designation) |
| Electrical Connection | ETK4 — DIN EN 175301-803 compliant connector with throttle insert |
Engineering Features & Advantages
- Precision Performance: The electro-hydraulic directional control valve (pilot-operated spool valve) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Rated Capability: Rated for pressure ratings up to 350 bar, supporting stable operation across the full working range.
- 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) with the standard N9 / K4 interface matches conventional machine control cabinets.
Typical Industrial Applications
As a genuine Rexroth component, it delivers the repeatability, leakage integrity, and long service life expected in continuous-duty hydraulic systems.
Understanding the Model Code: 4WEH16J7X/6EG24N9ETK4/B10
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 |
|---|---|
| 4WEH16J7X6EG24N9ETK4B10 | Electro-Hydraulic Directional Control Valve (Pilot-Operated Spool Valve) — NG16 (CETOP 7 / DIN 24340) |
| Spool H16 | Spool type H16 — metering and centre condition for this variant are listed in the specification table |
| EG24 | Solenoid — 24 V DC |
| K4 | Plug connector to DIN EN 175301-803 (ISO 4400) |
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 4WEH16J1X/6HG24N9ETK4/B10 / R901531099 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 (see nameplate) 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 pilot solenoid, and the coil must match your control circuit.
PRODUCT IMAGES
Rexroth 4WEH16J7X/6EG24N9ETK4/B10 / R900930431 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 4WEH16J7X/6EG24N9ETK4/B10 / R900930431 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.
