Product Overview
The Rexroth M-3SED6UK1X/350CG24N9K4 (Material Number R900052621) is a direct-operated solenoid directional seat valve designed for leak-free shut-off and directional control of hydraulic fluid flow in industrial hydraulic systems. As a member of the Rexroth SED series, this valve operates on a seated (poppet) design principle, ensuring virtually zero internal leakage in the closed position — a critical advantage over spool-type valves in circuits requiring load holding, pressure retention, or safe blocking functions. The valve is actuated by a wet-pin DC solenoid (24 V DC, N9K4 coil designation) and is configured as a 3-way directional seat valve with a spring return. The “350” in the model code indicates a nominal pressure rating of 350 bar, making it suitable for high-pressure industrial circuits. The UK1X designation refers to the specific spool/seat configuration and design series, while the CG24N9K4 identifies the solenoid voltage, connector type, and coil variant. This valve is widely used as a pilot valve or as a direct control element in demanding hydraulic systems where reliable sealing and fast, positive response are essential.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Directional Seat Valve (3/2-way, direct-operated, poppet-type) |
| Model Designation | M-3SED6UK1X/350CG24N9K4 |
| Material Number | R900052621 |
| Operating Pressure | Up to 350 bar (nominal rating per model code) |
| Nominal Flow Rate | Up to 25 L/min (typical for NG6 seat valve size) |
| Solenoid Voltage | 24 V DC (CG24 coil designation) |
| Electrical Connector | N9K4 — DIN EN 175301-803 (formerly DIN 43650) standard plug connector |
| Mounting & Connection | NG6 (CETOP 3 / ISO 4401-03) subplate mounting interface |
| Sealing Principle | Seat (poppet) design — zero leakage in closed position |
| Return Mechanism | Spring return (de-energized position) |
Engineering Features & Advantages
- Precision Performance: The solenoid directional seat valve (3/2-way, direct-operated, poppet-type) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original REXROTH standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
This valve is widely used as a pilot valve or as a direct control element in demanding hydraulic systems where reliable sealing and fast, positive response are essential.
PRODUCT IMAGES
REXROTH M-3SED6UK1X/350CG24N9K4 / R900052621 Solenoid Directional Seat Valve
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Shop the genuine REXROTH M-3SED6UK1X/350CG24N9K4 / R900052621 Solenoid Directional Poppet Valve. This Germany-made 24V DC hydraulic component features a leak-free poppet design, delivering reliable fluid control for heavy-duty industrial systems.