Product Overview
The Rexroth LC25DB20E74 (Material Number R900912549) is a high-performance 2-way cartridge valve engineered for pressure control functions within demanding industrial hydraulic systems. Manufactured by Bosch Rexroth, a global leader in drive and control technology, this valve is designed as a screw-in cartridge insert that mounts into a standardized receiving cavity. Operating on a poppet-type seating principle, the LC25DB20E74 functions as a pilot-operated pressure control element, typically configured for pressure relief or pressure reducing duty when paired with an appropriate pilot valve cover. Its robust construction and precise metering characteristics make it an essential component for maintaining system pressure integrity, safeguarding downstream components against overpressure, and ensuring stable operation in high-pressure hydraulic circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | 2-Way Cartridge Valve (Pressure Control) |
| Model Designation | LC25DB20E74 / R900912549 |
| Nominal Size | NG25 (Size 25 cartridge cavity) |
| Operating Pressure | Up to 420 bar (standard industrial grade for this series) |
| Function Configuration | Pressure control insert (DB series logic element) |
| Mounting & Connection | Screw-in cartridge per ISO 7368 / Rexroth standard cavity |
| Sealing Material | NBR (Nitrile) standard; FKM available on request |
| Fluid Compatibility | Mineral oil based hydraulic fluids per DIN 51524 |
Engineering Features & Advantages
- Precision Pressure Control: The poppet-type seating design delivers fast response and tight pressure regulation, minimizing system shock and ensuring consistent performance across varying flow demands.
- High Power Density: The compact NG25 cartridge format handles high flow rates and pressures within a minimal installation envelope, reducing manifold size and overall system footprint.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened and ground internal components that resist wear and extend service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring drop-in interchangeability with existing Rexroth LC series cartridge cavities.
- Modular System Integration: Designed to accept a range of pilot control covers, enabling flexible configuration for pressure relief, pressure reducing, or unloading functions within a single cavity.
Typical Industrial Applications
This cartridge valve is widely deployed in heavy industrial scenarios requiring reliable pressure management, including plastic injection molding machines, metallurgical presses and rolling mills, construction and marine hydraulic systems, and CNC machine tool power units. Its robust design also suits hydraulic test stands and specialized offshore equipment where precise pressure control and long service intervals are critical.
PRODUCT IMAGES
REXROTH LC25DB20E74 / R900912549 2-Way Cartridge Valve (Pressure Control)
⚡ 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 LC25DB20E74/ / R900912549 Pilot Operated Check Valve. This Germany-made hydraulic component features a leak-free poppet design, delivering reliable fluid control for heavy-duty industrial systems.