Product Overview
The Rexroth LFA50EWA15-71/CA40DQMG24 (Material Number: R901056228) is a high-performance control cover engineered for use with two-way cartridge valves in industrial hydraulic systems. Manufactured by Bosch Rexroth, this control cover functions as the pilot control interface, housing the directional spool valve elements that govern the opening and closing of the main cartridge valve stage. The LFA series control cover integrates a directional spool valve configuration (designated “EA” in the model code) with a size 15 NG interface, providing reliable pilot actuation for flow and pressure control functions. With a rated pressure capability of up to 315 bar and a nominal flow capacity of 40 L/min (indicated by the CA40 designation), this component is designed for demanding industrial circuits requiring precise directional control, fast response, and long service life.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Directional Spool Valve — Control Cover for Cartridge Valve |
| Model Designation | LFA50EWA15-71/CA40DQMG24 |
| Material Number | R901056228 |
| Nominal Size | NG15 (Size 15 interface) |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Nominal Flow Rate | 40 L/min (CA40 designation) |
| Pilot Valve Type | Directional spool valve, spring return, solenoid actuated |
| Solenoid Voltage | 24 V DC (DQMG24 designation) |
| Mounting & Connection | Standard ISO / Rexroth cartridge valve interface, NG15 mounting pattern |
| Seal Material | NBR (standard); FKM available on request |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP, HVLP per DIN 51524) |
Engineering Features & Advantages
- Precision Spool Control: The integrated directional spool valve provides accurate pilot oil routing to the main cartridge valve, ensuring fast and repeatable opening/closing response for precise flow and pressure regulation.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original REXROTH standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
With a rated pressure capability of up to 315 bar and a nominal flow capacity of 40 L/min (indicated by the CA40 designation), this component is designed for demanding industrial circuits requiring precise directional control, fast response, and long service life.
PRODUCT IMAGES

REXROTH LFA50EWA15-71/CA40DQMG24 / R901056228 Control Cover for Cartridge 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 LFA50EWA15-71/CA40DQMG24 / R901056228 Solenoid Operated Directional Spool Valve. This Germany-made 24V DC hydraulic component features a robust spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.





