Product Overview
The Rexroth M-3SEW6U38/630MG24N9K4/P (Material Number R900030919) is a direct-operated solenoid directional seat valve designed for leak-free load holding and precise flow direction control in high-pressure industrial hydraulic systems. As a member of the Rexroth SEW6 series, this valve features a poppet-type seat design that ensures zero internal leakage in the closed position, making it ideal for applications requiring reliable load holding without drift. The “U38” spool/seat configuration provides a defined flow path with a specific cracking pressure characteristic, while the “630” pressure rating indicates a nominal operating pressure of up to 630 bar, suitable for demanding high-pressure circuits. The integrated MG24N9K4 solenoid is a 24 V DC wet-pin solenoid with a nominal power of approximately 30 W, featuring an ISO 4400 / DIN 43650 connector interface for straightforward electrical integration. This valve is engineered for use in hydraulic power units, clamping circuits, and safety-related control functions where dependable sealing and rapid response are critical.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Directional Seat Valve (Poppet Type) |
| Model Designation | M-3SEW6U38/630MG24N9K4/P |
| Material Number | R900030919 |
| Operating Pressure | Up to 630 bar (nominal, per model code) |
| Nominal Flow Rate | Approx. 40 L/min (typical for NG6 seat valve) |
| Solenoid Voltage | 24 V DC (MG24N9K4) |
| Solenoid Power | Approx. 30 W (nominal) |
| Electrical Connector | ISO 4400 / DIN 43650 (3-pin + PE) |
| Mounting & Connection | Subplate mounting, ISO 4401-03 / CETOP 3 / NG6 interface |
| Sealing Material | NBR (N9) standard, suitable for mineral oil-based hydraulic fluids |
| Fluid Temperature Range | -20 °C to +80 °C (NBR seals) |
Engineering Features & Advantages
- Precision Performance: The solenoid directional seat valve (poppet type) 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 OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings up to 630 bar and flow rates up to 40 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
As a member of the Rexroth SEW6 series, this valve features a poppet-type seat design that ensures zero internal leakage in the closed position, making it ideal for applications requiring reliable load holding without drift.
PRODUCT IMAGES




Rexroth M-3SEW6U38/630MG24N9K4/P / R900030919 Solenoid Directional Seat Valve
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Shop the genuine Rexroth M-3SEW6U38/630MG24N9K4/P / R900030919 Solenoid Directional Seat Valve. This Germany-made 24 VDC hydraulic component features a 3-way, 2-position design with spring return, delivering leak-free, reliable fluid control for heavy-duty industrial systems.