Rexroth M-3 SED 6 Hydraulic Directional Valve

Description

This is a direct-operated directional seat valve, type M-3SED, from Bosch Rexroth. It is designed for reliable switching and leak-free blocking of hydraulic flow. With its 24V DC solenoid and high-pressure rating of 350 bar, this valve is suitable for a wide range of industrial hydraulic applications. The NG6 (CETOP 3) mounting pattern ensures easy integration into standard hydraulic systems.

Specifications

• Manufacturer: Rexroth (Bosch Rexroth)
• Type: M-3 SED 6 UK13/350 C G24 N9K4
• Material Number (MNR): R900052621
• Valve Type: 3-way, 2-position Directional Seat Valve
• Actuation: Solenoid, Direct Operated
• Nominal Size: 6 (NG6 / CETOP 3)
• Mounting Interface: ISO 4401-03-02-0-05
• Maximum Operating Pressure: 350 bar
• Solenoid Voltage: 24V DC
• Electrical Connector: Per ISO 4400 / DIN 43650 Form A (socket not included)
• Features: Concealed manual override (N9)

Label Info

• MNR: R900052621
• FD: 09W32
• Full Type: M-3 SED 6 UK13/350 C G24 N9K4

Application

This valve is ideal for applications where zero leakage in the closed position is critical, such as in clamping circuits, lifting equipment, and machine tools for secure load-holding.

Country of Origin

Made in Germany.

CO2 Impact

Opting for this refurbished component over a new one prevents the emission of approximately 60 kg of CO2, which is comparable to driving a car for 300 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

The primary difference is sealing. A seat valve like the M-3SED offers zero-leakage closure thanks to its poppet design, making it ideal for holding pressure or loads without drift. A spool valve (4WE6) has inherent internal clearances, resulting in a small, permissible leakage.

This solenoid requires a standard DIN 43650 Form A (ISO 4400) connector. These are widely available three-pin connectors used throughout industrial automation.

This valve is typically designed for mineral oil-based fluids (HL, HLP) per DIN 51524. For use with other fluids like water glycols (HFC) or synthetic esters, you must consult the official Rexroth datasheet to verify seal material compatibility (e.g., FKM/Viton seals may be required).

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Last Update: Friday, March 13, 2026