Product Overview
The Rexroth 4WRTE 16 E1-125L-42/6EG24K31/A1M (R900954266) is a high-response, pilot-operated proportional directional valve from the Rexroth 4WRTE series, engineered for precise, dynamic control of flow direction and magnitude in demanding industrial hydraulic systems. Utilizing a two-stage design with a high-performance proportional solenoid pilot stage acting on a main spool, this valve delivers fast response times, excellent repeatability, and minimal hysteresis. The integrated electrical position feedback (E1 designation) ensures closed-loop spool position control, making it ideal for applications requiring accurate velocity and position regulation of hydraulic actuators. With a nominal size of NG16 and a rated flow capacity of 125 L/min at a 10 bar pressure drop per land, this valve serves as a critical control element in high-cycle industrial machinery where precision and reliability are paramount.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (High-Response, Pilot-Operated) |
| Model Designation | 4WRTE 16 E1-125L-42/6EG24K31/A1M |
| Rexroth Part Number | R900954266 |
| Nominal Size | NG16 (Size 16) |
| Rated Flow Capacity | 125 L/min (per land at Δp = 10 bar) |
| Spool Type | E1 — Overlapping spool with progressive flow characteristics |
| Operating Pressure | Up to 315 bar (system pressure, port P/A/B); pilot pressure up to 315 bar |
| Solenoid Voltage | 24 V DC (EG24 designation) |
| Electrical Feedback | Integrated position transducer (E1) with closed-loop control |
| Mounting & Connection | Subplate mounting per ISO 4401 / DIN 24340 (NG16 pattern); 4-way directional configuration |
| Seal Material | NBR (Nitrile) — suitable for mineral oil-based hydraulic fluids |
Engineering Features & Advantages
- Precision Performance: The proportional directional valve (high-response, pilot-operated) delivers precise, repeatable performance with low hysteresis and stable control 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 OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 125 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
With a nominal size of NG16 and a rated flow capacity of 125 L/min at a 10 bar pressure drop per land, this valve serves as a critical control element in high-cycle industrial machinery where precision and reliability are paramount.
PRODUCT IMAGES





Rexroth 4WRTE 16 E1-125L-42/6EG24K31/A1M / R900954266 High-Response Proportional Directional Valve
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Shop the genuine REXROTH 4WRTE 16 E1-125L-42/6EG24K31/A1M / R900954266 High-Response Directional Control Valve. This Germany-made 24V DC hydraulic component features a pilot-operated, high-response design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.