Bosch Rexroth | 4WEH16J7X6EG24N9ETK4B10
4WEH16J7X/6EG24N9ETK4/B10
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The 4WEH16J7X/6EG24N9ETK4/B10 spool valve is manufactured by Bosch Rexroth for the WEH Directional Spool Valves series and directs pressurized fluid in hydraulic automation systems. It uses a 4/3-way spool with symbol J to switch two working ports while blocking flow in the neutral position. The body is built to nominal size NG16 so it matches standard manifold cavities, and a spring-centered design returns the spool to neutral when power is removed. A high-power 4WE 6E pilot stage energized by a 24 V DC coil shifts the main spool, drawing its pilot supply and return internally to reduce external plumbing. During rapid operation the pilot gallery admits 35 l/min, actuates once internal pressure reaches 14 bar, and tolerates up to 250 bar without damage. The main flow paths withstand system pressures to 280 bar, supporting heavy-duty circuits.
Interface details include a porting pattern of ISO 4401-07-07-0-05 for manifold interchangeability and an electrical connector conforming to DIN EN 175301-803 K4 for quick coil replacement. The valve passes up to 300 l/min in symbol J service, suiting medium-flow presses and mobile work functions. Each shift consumes 5.72 cm³ of pilot oil, limiting energy loss in high-cycle applications. A 1.0 mm throttle insert labeled B10 tempers pressure spikes in the pilot passage. The assembled unit weighs 8.9 kg with two solenoids fitted, allowing straightforward handling and mounting.
Technical Specifications
Centering Type
Spring-Centered
Electrical Connection
DIN EN 175301-803 (K4)
Max Flow (symbol J, Ng16)
300 l/min
Max Operating Pressure (p, A, B)
280 bar
Maximum Pilot Pressure
250 bar
Minimum Pilot Pressure (x Internal)
14 bar
Nominal Size
NG16
Pilot Flow For Shortest Switching Time
35 l/min
Pilot Supply/return
Internal/Internal (ET)
Pilot Valve Type
4WE 6E (High-Power)
Pilot Volume Per Switch
5.72 cm³
Porting Pattern
ISO 4401-07-07-0-05
Solenoid Voltage (pilot)
24 V DC
Spool Function
4/3-Way, Symbol J
Throttle Insert
1.0 mm (B10)
Weight (two Solenoids, Spring-centered)
8.9 kg
1620 Old Apex Road
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