Product Overview
The Rexroth LFA 40 GWA-71 (Material Number: R900938114) is a high-precision control cover designed for use with Rexroth cartridge valves (logic elements) in industrial hydraulic systems. As part of the Rexroth LFA series, this control cover serves as the pilot control interface for a two-way cartridge valve, enabling directional, pressure, and flow control functions within a manifold block. The LFA 40 GWA-71 features a size 40 (NG40) mounting pattern and is equipped with a GWA-71 pilot control configuration, which includes a directional spool valve for piloting the main cartridge element. This control cover is engineered to deliver reliable switching performance, precise pilot pressure control, and long service life in demanding industrial environments. It is a critical component in Rexroth’s modular cartridge valve system, widely used in high-pressure hydraulic circuits for directional control of actuators and pressure regulation.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Control Cover for Cartridge Valve (Directional Spool Valve Pilot Control) |
| Model Designation | LFA 40 GWA-71 / R900938114 |
| Nominal Size | NG40 (Size 40) |
| Pilot Control Type | GWA-71 Directional Spool Valve Configuration |
| Operating Pressure | Up to 350 bar (pilot and main circuit dependent) |
| Mounting & Connection | Standard ISO / Rexroth Cartridge Valve Interface (NG40) |
| Pilot Supply | Internal or External Pilot Oil Supply (configuration dependent) |
| Seal Material | NBR (Nitrile) / FKM (Viton) options available |
Engineering Features & Advantages
- Precision Pilot Control: The GWA-71 directional spool valve provides accurate and repeatable piloting of the main cartridge element, ensuring precise directional and pressure control in high-pressure hydraulic circuits.
- Modular System Integration: Designed as part of Rexroth’s modular cartridge valve system, this control cover allows for flexible circuit design and easy integration into custom manifold blocks.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and high-quality sealing to withstand demanding hydraulic environments.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring drop-in replacement without modification.
- Optimized Flow Characteristics: Engineered internal passages minimize pressure drop and ensure responsive pilot oil flow for fast valve actuation.
Typical Industrial Applications
The Rexroth LFA 40 GWA-71 control cover is widely used in heavy industrial hydraulic systems, including plastic injection molding machines, metallurgical presses, die-casting equipment, and construction & marine hydraulics. It is also found in CNC machine tools, hydraulic power units
PRODUCT IMAGES
REXROTH LFA 40 GWA-71 / R900938114 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 40 GWA-71/ / R900938114 Pilot Operated Check Valve. This Germany-made hydraulic component features a robust poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.