Product Overview
The Rexroth DREE10-6X/315MG24K31A1V (Material Number R901278310) is a pilot-operated, proportional pressure reducing valve from the DREE series, designed for precise, infinitely variable control of secondary system pressure in industrial hydraulic circuits. As a direct-controlled proportional pressure reducing valve, it reduces an input pressure to a regulated, electrically proportional output pressure at port A, independent of fluctuations in the supply pressure and flow. The valve is actuated by a high-performance proportional solenoid (24 V DC) with integrated position feedback, enabling accurate pressure regulation proportional to the electrical command signal. With a size 10 (NG10) CETOP mounting interface and a maximum regulated pressure of 315 bar, this valve is engineered for demanding applications requiring dynamic pressure control, soft-start ramping, and precise force or torque modulation in hydraulic actuators.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Pressure Reducing Valve (Pilot-Operated) |
| Model Designation | DREE10-6X/315MG24K31A1V / R901278310 |
| Size / Nominal Diameter | NG10 (CETOP 5 / ISO 4401-05) |
| Maximum Regulated Pressure | 315 bar (secondary pressure at port A) |
| Maximum Operating Pressure | Up to 350 bar (system inlet, port P) |
| Actuation Type | Proportional Solenoid with Position Feedback |
| Solenoid Voltage | 24 V DC (MG24 designation) |
| Electrical Connector | K31A1V — DIN EN 175301-803 (ISO 4400) valve plug, 3-pole + PE |
| Control Signal Range | Proportional current control (0–800 mA typical, via proportional amplifier) |
| Mounting & Connection | Subplate mounting, ISO 4401-05 / CETOP 5 / NG10 interface |
| Hydraulic Fluid | Mineral oil (HL, HLP) per DIN 51524; other fluids on request |
Engineering Features & Advantages
- Precision Performance: The proportional pressure reducing valve (pilot-operated) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings of 315 bar (secondary pressure at port A), supporting stable operation across the full working range.
Typical Industrial Applications
With a size 10 (NG10) CETOP mounting interface and a maximum regulated pressure of 315 bar, this valve is engineered for demanding applications requiring dynamic pressure control, soft-start ramping, and precise force or torque modulation in hydraulic actuators.
PRODUCT IMAGES

Rexroth DREE10-6X/315MG24K31A1V / R901278310 Proportional Pressure Reducing Valve
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Shop the genuine Rexroth DREE10-6X/315MG24K31A1V / R901278310 Proportional Pressure Relief Valve. This Germany-made 24V DC hydraulic component features a piloted design with proportional solenoid, delivering leak-free, reliable fluid control for heavy-duty industrial systems.