Product Overview
The Rexroth 4WSE2ED16-24/100B9ET315K9DM (Material Number: R900902043) is a high-response, two-stage directional servo valve engineered for precision electrohydraulic control in demanding industrial applications. Manufactured by Bosch Rexroth, this valve utilizes a torque-motor pilot stage with a mechanical feedback mechanism to drive a main spool, delivering exceptionally fast dynamic response and high-resolution flow metering. The 4WSE2ED series is designed for closed-loop position, velocity, and force control systems where precise, repeatable hydraulic actuation is critical. With a nominal size of NG16 and a rated flow capacity of 100 L/min at a pressure drop of 35 bar per land, this servo valve serves as a critical control element in high-performance hydraulic circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional & Servo Valve (Two-Stage Directional Servo Valve) |
| Model Designation | 4WSE2ED16-24/100B9ET315K9DM / R900902043 |
| Nominal Size | NG16 (DIN 24340 / ISO 4401 Size 16) |
| Rated Flow | 100 L/min at Δp = 35 bar per land |
| Operating Pressure | Up to 315 bar (system pressure, port P) |
| Pilot Stage | Torque motor with mechanical feedback (nozzle-flapper principle) |
| Spool Configuration | Critical-center, zero-lap spool for high-resolution metering |
| Electrical Interface | Proportional solenoid with integrated position feedback (ET version) |
| Mounting & Connection | Subplate mounting per ISO 4401-05 / CETOP 5, 4-way configuration |
| Seal Material | NBR (Buna-N) / FKM available on request |
| Fluid Compatibility | Mineral oil based hydraulic fluids per DIN 51524 (HLP, HLVP) |
Engineering Features & Advantages
- Precision Performance: The proportional & servo valve (two-stage directional servo valve) 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 100 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
The 4WSE2ED series is designed for closed-loop position, velocity, and force control systems where precise, repeatable hydraulic actuation is critical.
PRODUCT IMAGES

REXROTH 4WSE2ED16-24/100B9ET315K9DM / R900902043 Servo 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 4WSE2ED16-24/100B9ET315K9DM / R900902043 Solenoid Operated Directional Spool 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.