Bosch Rexroth | 4WEH16E7X6EW110N9ETK4B10
4WEH16E7X/6EW110N9ETK4/B10
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The 4WEH16E7X/6EW110N9ETK4/B10 valve from Bosch Rexroth belongs to the WEH Directional Spool Valves series and routes pressure fluid in hydraulic automation systems. It is built in the NG16 size and follows a 4-way layout with three spool positions identified by symbol E to alternate flow between actuator ports. Rated flow reaches 300 l/min, while maximum operating pressure at ports P, A, and B is 280 bar. The mounting interface matches ISO 4401-07-07-0-05, so it fits standard subplates without adapter blocks. A concealed manual override labeled N9 allows manual shifting during setup or power loss, and a spring-centered assembly with two solenoids brings the total weight to 8.9 kg.
An electrical plug conforming to DIN EN 175301-803 form K4 connects the solenoids to the control cabinet. Spool movement is piloted by a 6E control valve that receives oil from an external supply through port X and returns it internally to tank via port T. The pilot circuit accepts pressures up to 250 bar but requires at least 14 bar to overcome the centering springs. A throttle insert with a 1.0 mm orifice, identified as option B10, limits pilot flow to dampen shock during rapid shifts. These characteristics support reliable directional control in automated presses, test rigs, and other industrial machinery.
Technical Specifications
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Flow (symbol E)
300 l/min
Max Oper. Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (spring-centered)
14 bar
Pilot Control Valve
6E
Pilot Oil Return
Internal (T)
Pilot Oil Supply
External (X)
Porting Pattern
ISO 4401-07-07-0-05
Size
NG16
Spool Positions
3
Spool Symbol
E
Throttle Insert
Ø 1.0 mm (B10)
Way Configuration
4-Way
Weight (two Solenoids, Spring-centered)
8.9 kg
1620 Old Apex Road
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