Bosch Rexroth | 4WEH10Q4X6EG24N9ETK4B08
4WEH10Q4X/6EG24N9ETK4/B08
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The 4WEH10Q4X/6EG24N9ETK4/B08 directional spool valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth. It directs pressurized fluid to selected actuator ports in hydraulic automation and is shifted by electro-hydraulic actuation, so a pilot stage moves the main spool with minimal electrical effort. The integrated 6E high-power pilot control valve uses an internal pilot supply and return, eliminating external lines. A 24 V DC coil energizes the pilot stage, and a DIN EN 175301-803 K4 connector provides electrical connection. The unit mounts in size 10 cavities and follows the ISO 4401-05-05-0-05 porting pattern. Pilot operation is reliable between 12 bar and 250 bar, and a concealed N9 manual override enables local actuation during setup or power loss.
The Q spool configuration presents a free cross-section of 13 mm² and accommodates flows up to 160 l/min, meeting the demands of medium-to-high volume circuits. Working pressure on service ports A and B, as well as the tank port T, can reach 280 bar, allowing the valve to function in high-pressure systems. A throttle insert with a 0.8 mm orifice moderates pilot oil to improve stability during rapid directional changes. These hydraulic limits define safe operating boundaries and ensure consistent performance when the valve is repeatedly cycled at maximum flow and pressure.
Technical Specifications
Actuation Type
Electro-Hydraulic
Coil Voltage
24 V DC
Electrical Connection
DIN EN 175301-803 (K4)
Free Cross-section (q, A–t/b–t)
13 mm²
Manual Override
Concealed (N9)
Max Flow (symbol Q)
160 l/min
Max Pilot Pressure
250 bar
Max Pressure (p, A, B)
280 bar
Max Pressure (t)
280 bar
Min Pilot Pressure
12 bar
Pilot Control Valve
6E High-Power
Pilot Supply/return
Internal (ET)
Porting Pattern
ISO 4401-05-05-0-05
Size (ng)
10
Spool Symbol
Q
Throttle Insert
Ø0.8 mm
1620 Old Apex Road
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