Product Overview
The Rexroth 4WRZ 16 E150-74/6EG24ETK4/M (Material Number R901291754) is a high-response, pilot-operated proportional directional valve with integrated position feedback, part of the renowned Rexroth 4WRZ series. Designed for precise control of flow direction and magnitude in demanding hydraulic systems, this valve utilizes a proportional solenoid on the pilot stage to actuate the main spool via hydraulic pilot pressure. The main stage features a robust, wear-resistant spool and sleeve assembly that ensures accurate metering and low hysteresis. With a nominal size of NG16 and a rated flow of 150 L/min at a 10 bar pressure drop per land, this valve is engineered for continuous industrial duty, offering excellent dynamic response and repeatability. It serves as a critical control element in closed-loop systems, enabling smooth acceleration and deceleration of actuators, precise velocity control, and reliable load holding. The integrated OBE (On-Board Electronics) with a 24 V DC solenoid and electrical position feedback ensures high accuracy and compatibility with modern machine control architectures.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, with Position Feedback) |
| Model Designation | 4WRZ 16 E150-74/6EG24ETK4/M |
| Material Number | R901291754 |
| Nominal Size | NG16 (DIN 24340 / ISO 4401) |
| Operating Pressure | Up to 315 bar (working ports); Pilot pressure up to 250 bar |
| Rated Flow | 150 L/min at Δp = 10 bar per land |
| Spool Type | E150 – Progressive flow characteristic, closed center |
| Actuation | Proportional solenoid, 24 V DC, with integrated electronics (OBE) |
| Electrical Connection | Connector according to EN 175301-803 (DIN 43650) / M12 |
| Mounting & Connection | Subplate mounting, ISO 4401-07-07-0-05 (NG16) |
| Seal Material | NBR (Nitrile) – standard; FKM available on request |
Engineering Features & Advantages
- Precision Performance: The integrated proportional solenoid, 24 V DC, with integrated electronics (OBE) ensures precise, repeatable control with low hysteresis and stable performance across the full working range.
- 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 standards, allowing straightforward retrofit into existing hydraulic systems without rework.
- Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 150 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
It serves as a critical control element in closed-loop systems, enabling smooth acceleration and deceleration of actuators, precise velocity control, and reliable load holding.
PRODUCT IMAGES
REXROTH 4WRZ 16 E150-74/6EG24ETK4/M / R901291754 Proportional 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.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH 4WRZ 16 E150-74/6EG24ETK4/M / R901291754 High Response Directional Control Valve. This Germany-made hydraulic component features a high-response pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.