Bosch Rexroth | M-4SEW6D3X420MG24N9K4B18V
M-4SEW6D3X/420MG24N9K4/B18V
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The M-4SEW6D3X/420MG24N9K4/B18V valve is part of the M-SEW Poppet Valves series from Bosch Rexroth. It is intended to open and close hydraulic flow paths in automated circuits that operate at high pressure. The valve is built in size 6 with a mounting interface conforming to ISO 4401-03-02-0-05, allowing drop-in installation on standard subplates. It withstands inlet pressures up to 420 bar and passes up to 25 l/min without exceeding rated conditions. The solenoid consumes 30 W from a 24 V DC supply, and the winding is rated for a 100 percent duty cycle so continuous energizing does not require cool-down intervals. Electrical termination is through a DIN EN 175301-803 K4 connector, and the enclosure meets IP65 to resist dust and water jets during machine wash-down. The complete assembly weighs 2.3 kg.
The coil surface can reach 120 °C under continuous load, so ambient conditions must allow adequate heat dissipation. The poppet can cycle up to 3600 times per hour, which supports rapid on-off control in sequencing functions. Back pressure at port T is limited to 100 bar, and a 1.8 mm throttle orifice moderates flow to reduce shock when switching. Fluid cleanliness must be maintained at ISO 4406 class 20/18/15 to protect the seat and extend service life. All dynamic seals are produced from FKM to provide compatibility with common hydraulic oils and elevated temperatures. These parameters complete the functional limits not addressed earlier and enable reliable service in closed-loop hydraulic automation systems.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803 (K4)
Max Coil Surface Temperature
120 °C
Max Flow
25 l/min
Max Pressure At Port T
100 bar
Max Switching Frequency
3600 1/h
Nominal Voltage
24 V DC
Operating Pressure Rating
420 bar
Porting Pattern
ISO 4401-03-02-0-05
Power Consumption
30 W
Protection Class
IP65
Seal Material
FKM
Size
6
Throttle Orifice
1.8 mm
Weight
2.3 kg
1620 Old Apex Road
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