Product Overview
The Rexroth 4WRZ16W8-150-74/6EG24N9ETK4/D3M (Material Number R900972872) is a pilot-operated, two-stage proportional directional valve from the renowned Rexroth WRZ series. Designed with an NG16 (size 16) interface, this valve features integrated on-board electronics (OBE) with a ±10 V analog command interface and a 4-way, 3-position spool configuration. The “W8” spool type provides a progressive flow characteristic with a defined overlap, ensuring precise, stable control of actuator velocity and direction in demanding hydraulic circuits. The valve operates on a 24 V DC supply with an integrated enable function and is engineered for high-resolution flow metering in closed-loop and open-loop industrial control systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, 4-Way, 3-Position) |
| Model Designation | 4WRZ16W8-150-74/6EG24N9ETK4/D3M / R900972872 |
| Nominal Size | NG16 (Size 16) |
| Spool Type | W8 (Progressive flow characteristic, defined overlap) |
| Nominal Flow Rate | 150 L/min at Δp = 10 bar per land |
| Operating Pressure | Up to 315 bar (P, A, B ports); 250 bar (T port) |
| Pilot Pressure | Minimum 25 bar; Maximum 315 bar |
| Electrical Command | ±10 V DC analog, integrated on-board electronics (OBE) |
| Supply Voltage | 24 V DC (nominal), with enable input |
| Mounting & Connection | ISO 4401-05-05-0-05 subplate mounting; DIN EN 175301-803 (ISO 4400) electrical connector |
| Seal Material | NBR (Nitrile) standard; FKM available on request |
Engineering Features & Advantages
- Precision Performance: The proportional directional valve (pilot-operated, 4-way, 3-position) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Precision-manufactured to original Rexroth specifications for direct replacement, minimising downtime and eliminating fitment issues.
- 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
The valve operates on a 24 V DC supply with an integrated enable function and is engineered for high-resolution flow metering in closed-loop and open-loop industrial control systems.
PRODUCT IMAGES
Rexroth 4WRZ16W8-150-74/6EG24N9ETK4/D3M / R900972872 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.
- 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 4WRZ16W8-150-74/6EG24N9ETK4/D3M / R900972872 Solenoid Directional Valve. This Germany-made 24V DC hydraulic component features a high-performance spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.