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The M-4SEW6Y3X/420MG125N9K4 poppet valve is produced by Bosch Rexroth for the M-SEW Poppet Valves series and serves as a directional element in hydraulic automation. It tolerates a maximum operating pressure of 420 bar so it can be installed in high-pressure circuits, while a flow rating of 25 l/min defines the volume it can pass to cylinders or motors. The air-gap high-power solenoid supplies the force needed to shift the poppet yet restricts electrical demand to 30 W. A concealed N9 manual override allows technicians to move the spool without energizing the coil during service checks. The valve can switch up to 3600 cycles per hour, which supports rapid-stroke machinery. Its porting pattern matches ISO 4401-03-02-0-05 subplates, simplifying manifold integration.
The unit operates in ambient conditions from −30 °C to +50 °C, and the hydraulic fluid itself may range between −30 °C and +80 °C, enabling reliable performance in outdoor or unconditioned plants. An NBR seal set confines the fluid and resists common mineral oils. The tank port is rated for 100 bar, permitting a pressurized return line without leakage. Electrical connection is made through a DIN EN 175301-803 K4 plug; when this mating connector is fitted the enclosure achieves IP65 protection against dust and water jets. The 4/2 configuration weighs 2.3 kg, allowing one person to mount the valve during assembly. These characteristics provide a compact, serviceable component that maintains actuation speed even as system pressure fluctuates.
Ambient Temperature Max (nbr)
+50 °C
Ambient Temperature Min (nbr)
-30 °C
Hydraulic Fluid Temp Max (nbr)
+80 °C
Hydraulic Fluid Temp Min (nbr)
-30 °C
Manual Override
Concealed (N9)
Mating Connector
DIN EN 175301-803 (K4)
Max Flow
25 l/min
Max Operating Pressure
420 bar
Max Switching Frequency
3600 1/h
Max Tank Port Pressure
100 bar
Porting Pattern
ISO 4401-03-02-0-05
Power Consumption
30 W
Protection Class
IP65 (with mating connector)
Seal Material
NBR
Solenoid Type
High-Power (Air-Gap)
Weight (4/2 Valve)
2.3 kg
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