Bosch Rexroth | 4WEH16E7X6EG24K4QM0G24
4WEH16E7X/6EG24K4QM0G24
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The 4WEH16E7X/6EG24K4QM0G24 directional valve is part of the WEH Directional Spool Valves series manufactured by Bosch Rexroth. It directs hydraulic flow in automated machinery by shifting a spool with the E symbol configuration, establishing specific paths between service ports. With a nominal size of NG16, the unit mounts on manifolds that follow the ISO 4401-07-07-0-05 pattern, ensuring interchangeability in modular systems. For circuits using symbol E it handles up to 300 l/min, while passages p, a, and b withstand operating pressures up to 280 bar. Actuation is provided by 24 V DC wet-pin solenoids, and each coil plugs into a DIN EN 175301-803 K4 connector that simplifies wiring in control cabinets.
Pilot operation is handled by a 6E control stage that receives oil externally through port X and returns it externally through port Y, separating pilot flow from the main gallery. The pilot network tolerates pressures up to 250 bar and requires at least 14 bar to center the three-position spring-loaded spool. Relief margins are defined individually for auxiliary ports: port T is limited to 250 bar, while the drain line on port Y must not exceed 210 bar in direct-current service. A rest-position monitoring switch designated QM0G24 supplies feedback to supervisory PLCs, confirming that the spool has returned to its neutral location. With two solenoids and the spring-centering package installed, the valve weighs 8.9 kg, allowing straightforward handling during assembly.
Technical Specifications
Electrical Connection
DIN EN 175301-803 (K4)
Max Flow (ng16, Symbol E)
300 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Max Pressure Port T
250 bar
Max Pressure Port Y (dc)
210 bar
Min Pilot Pressure (3-pos, Spring-centered)
14 bar
Nominal Size
NG16
Pilot Control Valve
6E
Pilot Oil Return
External (Y)
Pilot Oil Supply
External (X)
Porting Pattern
ISO 4401-07-07-0-05
Position Monitoring
Rest Position Monitored (QM0G24)
Solenoid Voltage
24 V DC
Spool Symbol
E
Weight (2 Solenoids, Spring-centered)
8.9 kg
1620 Old Apex Road
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