Bosch Rexroth | 4WEH16J7X6EW110N9ETS2K4B10
4WEH16J7X/6EW110N9ETS2K4/B10
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The 4WEH16J7X/6EW110N9ETS2K4/B10 valve is produced by Bosch Rexroth within the WEH Directional Spool Valves series and directs hydraulic flow in automated machinery. Its NG16 size defines the port spacing and matches mid-capacity manifolds. With a spool J configuration the unit passes up to 300 l/min, supporting rapid cylinder or motor movement. The body endures 280 bar on pressure and work ports, while the pilot stage accepts up to 250 bar to match common supply lines. A spring-centered variant requires at least 14 bar pilot pressure so the spool shifts reliably back to center. Internal pilot oil supply, coded ET, removes the need for an external pilot line. Installation uses the ISO 4401-07-07-0-05 pattern, ensuring interface compatibility with standardized subplates.
Port T is rated for 250 bar, allowing operation in circuits with high return pressures. Hydraulic fluid may reach 80 °C, and the housing tolerates ambient temperatures up to 50 °C, securing performance in warm environments. Solenoid power is connected through a DIN EN 175301-803 K4 plug, which fits common industrial cable glands. System cleanliness must stay within ISO 4406 20/18/15 to prevent wear on the precision-ground spool. A coating limited to 100 µm guards against corrosion without obstructing the mounting face. A 1.0 mm throttle insert can be installed to meter pilot flow and smooth actuation. Four M10×60 screws fasten the valve to the subplate, and each screw is tightened to 58 Nm to maintain gasket compression.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coating Thickness Max
100 µm
Electrical Connection
DIN EN 175301-803 (K4)
Max Ambient Temperature (nbr)
50 C
Max Flow (ng16, Spool J)
300 l/min
Max Hydraulic Fluid Temp (nbr)
80 C
Max Operating Pressure (p/a/b)
280 bar
Max Pilot Pressure
250 bar
Max Port T Pressure
250 bar
Min Pilot Pressure (3-pos Spring-centered)
14 bar
Mounting Pattern
ISO 4401-07-07-0-05
Mounting Screws
4x M10x60
Pilot Oil Supply
Internal (ET)
Screw Tightening Torque
58 Nm
Size
NG16
Throttle Insert Diameter
1.0 mm
1620 Old Apex Road
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