Product Overview
The Rexroth LC 50 A20E70 (Material Number R900920273) is a two-stage logic cartridge valve designed for high-flow directional and pressure control functions within industrial hydraulic systems. As part of the Rexroth LC series, this cartridge-style valve installs directly into a machined manifold block and operates on a poppet-and-cover principle, where a pilot stage controls the main poppet to open or close the main flow path. The LC 50 A20E70 is widely used as a main stage element in directional, pressure, and flow control circuits, offering high flow capacity, fast response, and reliable sealing in demanding hydraulic power units and manifold-based systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Logic Cartridge Valve (Two-Stage Directional Control) |
| Model Designation | LC 50 A20E70 / R900920273 |
| Nominal Size | NG50 (Size 50 cartridge) |
| Operating Pressure | Standard Industrial Grade (Up to rated bar per Rexroth LC series) |
| Mounting & Connection | Standard ISO / Manufacturer Interface — cartridge insertion into manifold block |
| Actuation | Pilot-operated (external pilot control via cover and pilot valve) |
| Sealing Principle | Poppet-type seat, leak-free closure in blocked position |
Engineering Features & Advantages
- Precision Performance: Two-stage poppet design delivers fast, positive opening and closing with minimal pressure drop across the main flow path, ensuring accurate directional control in high-flow circuits.
- Leak-Free Sealing: Poppet-and-seat construction provides virtually zero leakage in the closed position, making it ideal for load-holding and pressure-holding functions.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened internal components and robust cartridge body for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, including the R900920273 material number, ensuring drop-in replacement without manifold modification.
- Compact Manifold Integration: Cartridge-style installation reduces system footprint and piping complexity compared to conventional line-mounted directional valves.
Typical Industrial Applications
The Rexroth LC 50 A20E70 logic cartridge valve is commonly deployed in plastic injection molding machines, metallurgical presses, hydraulic press and forging systems, construction and marine hydraulics, and CNC machine tool power units. It is particularly suited for manifold-based directional control circuits, pressure holding, and high-flow switching functions where reliable sealing and fast response are critical.
PRODUCT IMAGES
Rexroth LC 50 A20E70 / R900920273 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 50 A20E70 / R900920273 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.