M-4SEW10Y1X/420MG96N9K4/B20

The M-4SEW10Y1X/420MG96N9K4/B20 valve belongs to the M-SEW Poppet Valves series and is produced by Bosch Rexroth for hydraulic actuation tasks in automated machinery. It uses a 4/2 directional layout identified by symbol Y, so the poppet can route flow between two working ports and two blocked positions as required by a control signal. Actuation is provided by a high-power air-gap solenoid, giving fast switching force for reliable seat closure. The coil is rated for 96 V DC, and the ±10 percent voltage tolerance keeps performance stable when supply variations are present. A continuous duty cycle of 100 percent allows the coil to remain energized indefinitely without thermal damage, while the coil surface temperature may reach up to 120 °C before exceeding its design limit. External ingress is limited by an IP65 enclosure, protecting the electrical section against dust and low-pressure water jets. Wiring is completed through a DIN EN 175301-803 connector, enabling standardized plug-in assembly on manifolds or subplates.

For circuit pressures up to 420 bar, the valve body and poppet elements maintain tight sealing to control high-energy hydraulic lines. The unit is intended for mineral oil media, matching common industrial power units and avoiding compatibility issues with its internal materials. An NBR seal set retains fluid and resists oil aging at the specified pressure and temperature range. There is no check valve insert, so reverse flow depends solely on the poppet seating arrangement. A 2.0 mm throttle orifice can be installed to meter pilot flow and dampen switching shocks when the valve shifts. Operators can manually reposition the poppet by using the concealed override, which remains protected against accidental activation during normal service. Spool position monitoring is not included, so position feedback must be provided elsewhere if required by the control scheme.