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The M-3SEW6C3X/420MG24N9Z2/B08V SO865 valve is part of the M-SEW Poppet Valves series from Bosch Rexroth and serves as a 3/2-way directional seat valve for hydraulic automation where leak-tight shutoff is required. It is built in valve size 6, which fits compact sub-plates while still passing moderate flow. The C spool symbol defines the internal seat arrangement that directs flow from pressure to actuator or blocks ports as commanded. Installation uses the ISO 4401-03-02-0-05 (NFPA D03) mounting interface, allowing direct stacking on standard manifolds. Actuation is provided by a high-power air-gap solenoid, so the unit responds quickly to electrical control. The solenoid is rated for a nominal 24 V DC supply, drawing 30 W during energization. Continuous service is possible because the duty cycle is 100 percent and the coil surface may reach up to 120 °C without damage. When a mating connector is attached, the enclosure achieves IP65 protection, which guards internal components from dust and water jets.
System performance parameters are aligned with common hydraulic circuits: the valve tolerates operating pressures up to 420 bar on the pressure port and delivers a maximum flow of 25 l/min without exceeding specified pressure drops. The tank port may be subjected to 100 bar, so back-pressure-loaded return lines can be used. Port B is a blind counterbore in version 420, ensuring that only the required flow paths are open within the manifold. A concealed manual override allows local actuation during commissioning while preventing accidental operation in service. The assembly weighs 1.5 kg, enabling easy handling when mounting or replacing modules in a stack. These characteristics let the valve regulate high-pressure circuits reliably while remaining compact and service-friendly.
Coil Max Surface Temperature
120 °C
Coil Type
High-Power Air-Gap Solenoid
Duty Cycle
100%
Manual Override
Concealed
Max Flow
25 l/min
Max Operating Pressure
420 bar
Mounting Interface
ISO 4401-03-02-0-05 (NFPA D03)
Nominal Voltage
24 V DC
Port B
Blind Counterbore (Version 420)
Power Consumption
30 W
Protection Class
IP65 (with connector mounted)
Spool Symbol
C
Tank Port Max Pressure
100 bar
Valve Function
3/2-Way Directional Seat Valve
Valve Size
6
Weight
1.5 kg
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