Bosch Rexroth | 4WEH16G7X6EG24N9S2K4
4WEH16G7X/6EG24N9S2K4
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The 4WEH16G7X/6EG24N9S2K4 valve belongs to the WEH Directional Spool Valves series from Bosch Rexroth and shifts hydraulic flow paths in automated circuits. It is configured as a 4/3-way valve so it can direct pressure to either work port or block all ports in center. The G spool form defines the overlap and flow areas suited for general-purpose positioning drives. Its NG16 size matches manifolds that handle medium flow rates, and the body follows the ISO 4401-07-07-0-05 porting pattern to simplify mounting on standardized subplates. Pilot oil is supplied externally through port X, which allows the main supply to remain isolated from pilot circuits, and the valve works with a minimum pilot pressure of 14 bar to shift the spool reliably. Return oil from the pilot stage leaves through external port Y, and this path may see up to 210 bar without affecting function. System cleanliness must reach ISO 4406 (c) 20/18/15 to protect the precision edges and maintain switching accuracy.
Electrical actuation is provided by a solenoid coil rated at 24 V DC, and the coil connects through a DIN EN 175301-803 plug so wiring can be completed with common industrial cables. A concealed manual override marked N9 lets technicians move the spool during commissioning or in case of power loss without exposing the mechanism to contaminants. Switching time can be fine-tuned with the S2 discharge control, enabling smoother acceleration or deceleration of connected actuators. The main ports P, A, and B withstand operating pressures up to 280 bar, while the tank port T is limited to 250 bar to protect return lines. The pilot stage tolerates a maximum of 250 bar so upstream pressure spikes do not damage its components. Together these pressure ratings align the valve with medium-pressure mobile or industrial machinery.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Coil Voltage
24 V DC (G24)
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Operating Pressure (p,a,b)
280 bar
Max Operating Pressure (t)
250 bar
Max Pilot Pressure
250 bar
Max Pilot Return Pressure (y)
210 bar
Min Pilot Pressure (x External)
14 bar
Pilot Oil Return
External (Y)
Pilot Oil Supply
External (X)
Porting Pattern
ISO 4401-07-07-0-05
Size
NG16
Spool Symbol
G
Switching Time Adjustment
Discharge Control (S2)
Way Configuration
4/3-Way
1620 Old Apex Road
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