Bosch Rexroth | 4WEH16HD7XOF6EW110N9SDK25LV
4WEH16HD7X/OF6EW110N9SDK25L/V
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The 4WEH16HD7X/OF6EW110N9SDK25L/V directional spool valve belongs to the WEH Directional Spool Valves series and is produced by Bosch Rexroth. Designed to route flow in hydraulic automation, the valve is supplied in NG16 size with a D-coded spool to establish the required port connections. An external X pilot oil supply feeds the High-Power 6E pilot valve, and the pilot stage needs at least 14 bar to shift the main spool. The solenoid coil is rated for 110 V AC at 50/60 Hz. During operation the valve passes up to 300 l/min while ports P, A, and B can be pressurized to 280 bar. Spool return to its hydraulic end position is achieved by pilot pressure, and switching time can be adjusted through supply control marked by the S code.
Installation follows porting pattern ISO 4401-07-07-0-05 so the valve fits standard subplates. FKM seals are fitted, and the unit operates in ambient temperatures up to 50 °C. The pilot circuit tolerates pressures to 250 bar, and port Y may carry up to 160 bar. A concealed manual override labeled N9 enables local actuation when required. These parameters combine defined pressure limits, temperature capability, mounting compatibility, and a protected override function into a single directional unit.
Technical Specifications
Ambient Temp Max
50 °C
Main Spool Return
Hydraulic End Position
Manual Override
Concealed (N9)
Max Flow (hd, Ng16)
300 l/min
Max Operating Pressure (p/a/b)
280 bar
Max Pilot Pressure
250 bar
Max Port Y Pressure (ac)
160 bar
Min Pilot Pressure (hydraulic End)
14 bar
Pilot Oil Supply
External (X)
Pilot Valve
High-Power 6E
Porting Pattern
ISO 4401-07-07-0-05
Seals
FKM
Size
NG16
Solenoid Voltage
110 V AC (50/60 Hz)
Spool Symbol
D
Switching Time Adjustment
Supply Control (S)
1620 Old Apex Road
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