Product Overview
The Rexroth M-3SED 6 UK14/350CG24N9K4 (Material Number R900052621) is a direct-operated solenoid directional seat valve designed for leak-free load holding and precise flow direction control in industrial hydraulic systems. As part of the Rexroth 3SED series, this valve utilizes a seated poppet design that ensures zero internal leakage in the closed position, making it ideal for applications requiring reliable pressure holding or safe load retention. The valve is actuated by a wet-pin AC/DC solenoid (24V DC nominal) with a manual override, and it conforms to ISO 4401 / DIN 24340 size 6 (NG6 / CETOP 3) mounting standards. It is engineered for high-cycle industrial duty, offering fast response times and consistent switching performance in demanding hydraulic circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Directional Seat Valve (Hydraulic Valve) |
| Model Designation | M-3SED 6 UK14/350CG24N9K4 / R900052621 |
| Operating Pressure | Up to 350 bar (rated pressure per model code) |
| Nominal Flow Rate | Up to 40 L/min (NG6 / CETOP 3 standard) |
| Mounting & Connection | ISO 4401-03 / DIN 24340-A6 (NG6 / CETOP 3) subplate mounting |
| Solenoid Voltage | 24V DC (G24 per model code), wet-pin design |
| Seal Material | N9 (NBR / Buna-N) — compatible with mineral oil based hydraulic fluids |
| Spool / Seat Configuration | UK14 — 2-position, 4-way directional seat valve with spring return |
| Manual Override | Integrated manual emergency actuation (standard) |
Engineering Features & Advantages
- Zero Leakage Seated Design: The poppet/seat construction eliminates internal leakage in the closed position, ensuring reliable load holding and pressure retention without drift — critical for safety-related circuits.
- Fast & Precise Switching: Direct solenoid actuation delivers rapid response times and repeatable directional control, minimizing cycle time in high-throughput industrial processes.
- High Pressure Capability: Rated for continuous operation up to 350 bar, suitable for high-pressure hydraulic systems in heavy machinery and industrial power units.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a robust wet-pin solenoid and durable seat geometry resistant to contamination-induced wear.
- Direct Fit Replacement: Precision-manufactured to original REXROTH specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
It is engineered for high-cycle industrial duty, offering fast response times and consistent switching performance in demanding hydraulic circuits.
PRODUCT IMAGES






REXROTH M-3SED 6 UK14/350CG24N9K4 / R900052621 Solenoid Directional Seat 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.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH M-3SED 6 UK14/350CG24N9K4 / R900052621 Solenoid Directional Seat Valve. This Germany-made 24V DC hydraulic component features a poppet-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.