Product Overview
The Rexroth LC 50 A10E70/ (Material Number R900938024) is a high-performance two-way logic cartridge valve engineered for demanding industrial hydraulic systems. As a core component of Rexroth’s modular valve family, this logic cartridge functions as a pressure and flow control element that is inserted into a standardized receiving cavity within a manifold block or control plate. By combining a poppet-type seating element with a pilot control cover, the LC series delivers exceptionally low pressure drop at high flow rates, making it ideal for compact power units and high-tonnage machinery. The valve operates on a hydraulically piloted, normally closed principle, where the main poppet is held seated by system pressure and a control spring until a pilot signal opens the passage. This design enables precise directional, pressure, and flow control functions to be configured directly within a single manifold, reducing piping complexity and leakage points across the entire hydraulic circuit.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Logic Cartridge Valve (Two-Way Flow Control & Modular Valve) |
| Model Designation | LC 50 A10E70/ / R900938024 |
| Nominal Size (NG) | NG 50 (SAE 2 in / ISO 50 cavity) |
| Operating Pressure | Up to 420 bar (6,090 psi) rated working pressure |
| Nominal Flow Capacity | Approx. 700 L/min (dependent on pilot configuration and circuit) |
| Actuation Type | Hydraulically piloted (external pilot via control cover) |
| Mounting & Connection | Standard ISO 7368 / DIN 24342 cartridge cavity, slip-in installation |
| Sealing Principle | Poppet seat, zero-leakage when closed |
Engineering Features & Advantages
- Precision Performance: The poppet-and-seat design provides virtually leak-free sealing in the closed position, while the large flow cross-section ensures minimal pressure drop and energy-efficient operation at high flow rates.
- Modular Circuit Flexibility: Compatible with the full range of Rexroth pilot control covers, allowing the same cartridge to perform directional, pressure-relief, unloading, or check functions simply by changing the pilot cover configuration.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened and ground internal components that resist contamination and wear in high-cycle applications.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring drop-in interchangeability with the R900938024 material number and standard ISO 7368 cavity.
Typical Industrial Applications
This logic cartridge valve is widely deployed in plastic injection molding machines, metallurgical presses and rolling mills, construction and marine hydraulic systems, and CNC machine tool power packs. Its high flow capacity and zero-leakage seating make
PRODUCT IMAGES

Rexroth LC 50 A10E70/ / R900938024 Logic Cartridge Valve
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH LC 50 A10E70/ / R900938024 Check Valve. This Germany-made hydraulic component features a poppet-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.