Product Overview
The Rexroth DRE20-61/200Y02K4LM (Material Number: R900245455) is a high-performance, pilot-operated proportional pressure reducing valve designed for precise, continuous electrical control of system pressure in industrial hydraulic circuits. As part of the Rexroth DRE series, this valve utilizes a proportional solenoid to infinitely vary the output pressure in direct proportion to the input electrical signal, providing superior dynamic response and repeatability compared to standard on/off directional valves. It is engineered to maintain a constant reduced pressure on the secondary (consumer) side regardless of fluctuations in the primary (supply) pressure, making it an essential component for advanced motion control, force regulation, and load simulation systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Pressure Reducing Valve (Pilot-Operated) |
| Model Designation | DRE20-61/200Y02K4LM / R900245455 |
| Operating Pressure | Up to 315 bar (Primary) / 200 bar (Secondary Setting) |
| Nominal Flow Rate | Up to 200 L/min (Dependent on pressure differential) |
| Actuation Type | Proportional Solenoid with Integrated Position Feedback |
| Mounting & Connection | Subplate Mounting (ISO 4401 / CETOP 5 / NG10 Interface) |
| Electrical Interface | Standard DIN 43650 Connector / Component Plug |
| Seal Material | NBR (Nitrile) / FKM (Viton) for high-temperature variants |
Engineering Features & Advantages
- Precision Proportional Control: The valve spool position is directly controlled by the proportional solenoid, enabling infinite pressure adjustment and highly accurate pressure regulation with minimal hysteresis.
- Pilot-Operated Stability: The pilot stage ensures that the main spool remains balanced against supply pressure fluctuations, delivering a constant reduced outlet pressure even under varying load conditions.
- Integrated Electronics (Optional): The “K4LM” designation indicates compatibility with Rexroth’s advanced control electronics, allowing for fine-tuning of ramp times, dither frequency, and gain to match specific machine dynamics.
- Industrial Reliability: Constructed with a robust, wear-resistant spool and sleeve assembly, this valve is designed for continuous operation in high-cycle industrial environments, ensuring long service life and minimal downtime.
- Direct Fit Replacement: Manufactured to exact Rexroth OEM specifications, ensuring dimensional and functional interchangeability with existing DRE20 series installations without the need for system re-engineering.
Typical Industrial Applications
This proportional pressure reducing valve is critical in applications requiring precise force control and pressure modulation, including: Plastic Injection Molding Machines (for clamping force and injection pressure control), Metallurgical
PRODUCT IMAGES
REXROTH DRE20-61/200Y02K4LM / R900245455 Proportional Pressure Reducing 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 DRE20-61/200Y02K4LM / R900245455 Pilot Operated Pressure Relief Valve. This German-made hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.