Product Overview
The Rexroth LFA 50 KWA-71 (Material Number R900938209) is a precision-engineered control cover designed for use with Rexroth two-way cartridge valves in industrial hydraulic systems. As part of the Rexroth LFA series, this control cover functions as a pilot control interface, enabling directional, pressure, and flow control functions when mounted on a standard cartridge valve insert. The LFA 50 KWA-71 features a size 50 (NG50) mounting interface and is configured with a KWA pilot control pattern, providing reliable spool actuation and precise metering of hydraulic fluid. Manufactured by Bosch Rexroth, a global leader in drive and control technology, this control cover is a critical component in high-performance hydraulic circuits requiring dependable directional control and long service life.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Control Cover for Cartridge Valve (Directional Spool Valve Accessory) |
| Model Designation | LFA 50 KWA-71 |
| Material Number | R900938209 |
| Nominal Size | NG50 (Size 50) |
| Pilot Control Pattern | KWA Configuration |
| Operating Pressure | Standard Industrial Grade (Up to rated bar per Rexroth LFA series specification) |
| Mounting & Connection | Standard ISO / Rexroth Cartridge Valve Interface (NG50) |
| Actuation Type | Pilot-Operated Directional Control |
Engineering Features & Advantages
- Precision Performance: The KWA pilot control pattern ensures accurate spool positioning and responsive directional control, enabling precise metering of hydraulic flow in demanding circuit configurations.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, the LFA 50 KWA-71 control cover is constructed from high-strength materials to withstand elevated pressures and cyclic loading without performance degradation.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring seamless integration with existing NG50 cartridge valve installations and minimizing downtime during maintenance or retrofit.
- Optimized Flow Dynamics: Internal passage design minimizes pressure drop and turbulence, contributing to overall system efficiency and reduced heat generation.
- System Versatility: Compatible with a wide range of Rexroth two-way cartridge valve inserts, allowing flexible configuration for directional, pressure, and flow control functions within a single manifold block.
Typical Industrial Applications
The Rexroth LFA 50 KWA-71 control cover is widely deployed in heavy-duty industrial hydraulic systems, including plastic injection molding machines, metallurgical presses, die-casting equipment, and large-scale CNC machine tools. It is also commonly found in construction and marine hydraulic circuits, as well as in general industrial manifolds where reliable pilot-operated directional control of high-flow cartridge valves is
PRODUCT IMAGES
REXROTH LFA 50 KWA-71 / R900938209 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 LFA 50 KWA-71 / R900938209 hydraulic valve. This German-made component features a robust design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.