Product Overview
The Rexroth 3DREP 6 C-21/25EG24N9K4/M-00 (Material Number R900956181) is a direct-operated, three-way proportional pressure reducing valve from the Bosch Rexroth DREP series. It is designed to convert an electrical input signal into a continuously variable, infinitely adjustable reduced outlet pressure, functioning as a pilot or control stage within demanding industrial hydraulic circuits. The valve operates on a proven proportional solenoid principle: an armature actuates a control spool against a compression spring, modulating the connection between the pressure port, the consumer port, and the tank port. This configuration enables precise, load-independent pressure reduction with minimal hysteresis and excellent repeatability, making it an ideal choice for systems requiring accurate pressure regulation rather than simple on/off switching. The 3DREP 6 C-21/25EG24N9K4/M-00 is a size 6 (NG6 / CETOP 3) valve with a nominal flow capacity of 25 L/min and a 24 V DC proportional solenoid, delivering reliable performance in closed-loop pressure control architectures.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Pressure Reducing Valve (3-way, direct-operated) |
| Model Designation | 3DREP 6 C-21/25EG24N9K4/M-00 |
| Material Number | R900956181 |
| Valve Size | NG6 (CETOP 3 / ISO 4401-03) |
| Nominal Flow Rate | 25 L/min |
| Operating Pressure | Up to 315 bar (inlet); reduced outlet pressure proportional to command signal |
| Solenoid Voltage | 24 V DC (EG24 proportional solenoid) |
| Electrical Connection | K4 — DIN EN 175301-803 (ISO 4400) 3-pole + PE, with integrated rectifier option |
| Seal Material | N9 — NBR (nitrile rubber), suitable for mineral oil-based hydraulic fluids |
| Mounting & Connection | Subplate mounting, ISO 4401-03-02-0-05 / CETOP 3 interface |
| Control Spool Type | C-21 — three-way pressure reducing configuration with defined |
Engineering Features & Advantages
- Precision Performance: The proportional pressure reducing valve (3-way, direct-operated) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth standards, allowing straightforward retrofit into existing hydraulic systems without rework.
- Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 25 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
This configuration enables precise, load-independent pressure reduction with minimal hysteresis and excellent repeatability, making it an ideal choice for systems requiring accurate pressure regulation rather than simple on/off switching.
PRODUCT IMAGES
Rexroth 3DREP 6 C-21/25EG24N9K4/M-00 / R900956181 Proportional Pressure Reducing Valve
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Shop the genuine Rexroth 3DREP 6 C-21/25EG24N9K4/M-00 / R900956181 Proportional Directional Valve. This Germany-made 24 VDC hydraulic component features a 3-way proportional design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.