Product Overview
The Rexroth LC 40 A20D70 (Material Number R900937999) is a high-performance two-stage logic cartridge valve designed for demanding flow control and pressure regulation tasks within industrial hydraulic systems. As a member of the Rexroth LC series, this valve functions as a pilot-operated, normally closed (A20D70) logic element. It is engineered to manage high flow rates with minimal pressure drop, making it an ideal choice for compact manifold block designs where space and efficiency are critical. The valve operates by utilizing a pilot pressure to control the main poppet, allowing for precise switching and directional control of large hydraulic flows in complex circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Logic Cartridge Valve / Flow Control Valve |
| Model Designation | LC 40 A20D70 / R900937999 |
| Operating Pressure | Up to 420 bar (Rated for high-pressure industrial circuits) |
| Nominal Flow Rate | Up to 450 L/min (dependent on circuit configuration) |
| Mounting & Connection | Standard ISO 7368 Cartridge Mounting (Size 40) |
| Control Type | Pilot Operated / Normally Closed (A20D70) |
Engineering Features & Advantages
- Precision Flow Control: The two-stage logic design allows for precise metering and switching of high flow rates with excellent response sensitivity, ensuring accurate actuator control in dynamic systems.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, featuring a robust poppet and seat design that minimizes leakage and enhances durability against contamination.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring seamless integration into existing Rexroth manifold blocks and systems.
- Compact Manifold Integration: The cartridge design allows for space-saving installation directly into hydraulic manifolds, reducing piping complexity and potential leak points.
Typical Industrial Applications
This logic cartridge valve is widely utilized in heavy industrial scenarios requiring reliable flow control and pressure management, including plastic injection molding machines, metallurgical presses, construction and marine hydraulics, and high-tonnage CNC machine tools. Its robust construction ensures optimal performance in systems demanding high pressure and rapid cycle times.
PRODUCT IMAGES
Rexroth LC 40 A20D70 / R900937999 Logic 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 LC 40 A20D70 / R900937999 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.