Bosch Rexroth | 4WEH16J7X6EW110N9ETDALB10-CSA
4WEH16J7X/6EW110N9ETDAL/B10 CSA
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The 4WEH16J7X/6EW110N9ETDAL/B10 CSA valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth. It is used to route pressurized oil in automated machinery where electrical commands must actuate hydraulic motion. The valve employs electro-hydraulic actuation, so an internal pilot stage shifts the main spool once the solenoid is energized. The coil operates on 110 V AC at either 50 Hz or 60 Hz, permitting direct wiring to common industrial control transformers. A high-power 6E pilot valve delivers ample pilot flow for quick response. The design is a 4-way configuration with a J spool, enabling four-port circuit control for motor or cylinder reversal. Its nominal size is NG16, and the interface matches ISO 4401-07-07-0-05, allowing installation on the corresponding subplate pattern. Subplate mounting simplifies replacement without disturbing hard plumbing. With the J spool in this size, the valve passes up to 300 l/min when fully shifted.
The main stage withstands 280 bar on pressure and work ports P, A, and B, enabling operation in high-pressure circuits. Pilot components accept up to 250 bar, providing a safe margin between control pressure and system pressure. For versions held in the center by springs, a minimum pilot pressure of 14 bar is required to initiate movement of the spool. Internal pilot oil supply and return eliminate external lines, reducing leakage points and shortening installation time. A concealed N9 manual override lets maintenance staff shift the valve mechanically during commissioning or power loss. The factory-supplied B10 throttle insert, drilled to 1.0 mm, meters pilot flow so switching speed can be tuned to application demands. Because the pilot functions are served from within, the valve keeps the envelope compact in densely packed manifolds.
Technical Specifications
Actuation Type
Electro-Hydraulic (WEH)
Coil Voltage
110 V AC (50/60 Hz)
Manual Override
Concealed (N9)
Max Flow (ng16, Symbol J)
300 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (3-pos Spring)
14 bar
Mounting Style
Subplate
Nominal Size
NG16
Pilot Oil Return
Internal (ET)
Pilot Oil Supply
Internal (ET)
Pilot Valve Type
6E (High-Power)
Porting Pattern
ISO 4401-07-07-0-05
Spool Symbol
J
Throttle Insert
B10 (Ø1.0 mm)
Way Configuration
4-Way
1620 Old Apex Road
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