Product Overview
The Rexroth DBEM 20-51/315XYG24K4M (Material Number R900727879) is a pilot-operated proportional pressure relief valve designed for precise, infinitely variable pressure control in industrial hydraulic systems. As part of the Rexroth DBEM series, this valve combines the robust construction of a classic pressure relief valve with proportional solenoid actuation, enabling continuous electro-proportional adjustment of system pressure in response to an analog electrical command signal. The valve limits system pressure by diverting excess flow to the tank when the set pressure is reached, with the setpoint determined by the current applied to the integrated proportional solenoid. This makes it an ideal solution for applications requiring dynamic pressure profiling, soft-start/stop ramping, and closed-loop pressure regulation rather than fixed mechanical pressure setting.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Pressure Relief Valve (Pilot-Operated) |
| Model Designation | DBEM 20-51/315XYG24K4M |
| Material Number | R900727879 |
| Nominal Size | NG20 (Size 20) |
| Pressure Rating | Up to 315 bar (maximum adjustable pressure) |
| Actuation | Proportional solenoid, 24 V DC |
| Control Signal | Analog current command (proportional to pressure setpoint) |
| Mounting & Connection | Subplate mounting, ISO 6264 / Rexroth standard interface |
| Seal Material | NBR (standard mineral oil compatibility) |
Engineering Features & Advantages
- Precision Proportional Control: The proportional solenoid enables stepless, infinitely variable pressure adjustment, allowing precise pressure profiling and closed-loop regulation in response to analog electrical signals.
- Pilot-Operated Stability: The pilot stage ensures accurate pressure limitation with minimal hysteresis and excellent repeatability, even at high flow rates through the main stage.
- Fast Dynamic Response: Optimized spool and pilot geometry delivers rapid response to command signal changes, supporting demanding pressure ramp and soft-start functions.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and proven Rexroth hydraulic technology.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring drop-in replacement without modification.
Typical Industrial Applications
This proportional pressure relief valve is widely used in plastic injection molding machines for precise injection and clamping pressure control, metallurgical presses for programmable pressing force profiles, CNC machine tools for controlled clamping and tool actuation, and general industrial hydraulic
PRODUCT IMAGES
REXROTH DBEM 20-51/315XYG24K4M / R900727879 Proportional Pressure Relief 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.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH DBEM 20-51/315XYG24K4M / R900727879 Pilot Operated Pressure Relief Valve. This Germany-made 24V DC hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.