Bosch Rexroth | 4WEH16J7X6EW110N9S2K4
4WEH16J7X/6EW110N9S2K4
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The 4WEH16J7X/6EW110N9S2K4 directional valve is produced by Bosch Rexroth for the WEH Directional Spool Valves series and directs hydraulic flow in automated circuits requiring precise switching. The valve belongs to size NG16, giving standardized port dimensions for mid-range flow rates. Its 4-way layout provides separate paths for pressure, tank, and two actuator lines, and three spool positions allow neutral, extend, and retract functions within a single housing. The spool marked J profiles the flow passages to support a maximum of 300 l/min in NG16 manifolds. Installation uses the ISO 4401-07-07-0-05 subplate interface, ensuring interchangeability with common manifolds. Pilot oil is supplied and returned externally so internal passages are freed for main flow paths. A concealed manual override designated N9 permits local actuation during commissioning without protruding parts.
The solenoid coil is rated for 110 V AC to match standard plant power supplies, and electrical connection is through a DIN EN 175301-803 K4 plug to simplify wiring and maintenance. Main ports P, A, and B withstand operating pressures up to 280 bar, while the pilot circuitry may be loaded to 250 bar without degrading response. The external Y port tolerates 160 bar so backpressure does not hinder spool return, and reliable shifting is maintained once the pilot pressure exceeds 14 bar. NBR seals resist common hydraulic oils and provide dependable leakage control across the rated temperature range. Switching time can be modified via the S2 discharge feature, allowing tuning of actuation speed for system dynamics.
Technical Specifications
Coil Voltage
110 V AC
Electrical Connection
DIN EN 175301-803 (K4)
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
Max Port Y Pressure (external, Ac)
160 bar
Minimum Pilot Pressure
14 bar
Mounting Interface
ISO 4401-07-07-0-05
Pilot Oil Supply/return
External/External
Seal Material
NBR
Size
NG16
Spool Positions
3
Spool Symbol
J
Switching Time Adjustment
Discharge (S2)
Way Configuration
4-Way
1620 Old Apex Road
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