Bosch Rexroth | 4WRKE16W6-200L-3X6EG24EK31A1D3M
4WRKE16W6-200L-3X/6EG24EK31/A1D3M
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The 4WRKE16W6-200L-3X/6EG24EK31/A1D3M valve is manufactured by Bosch Rexroth for the 4WRKE Directional Valves series. It regulates direction and quantity of flow in hydraulic automation loops. The unit mounts on the ISO 4401-07-06-0-94 interface, so it drops onto common subplates without adapter blocks. Integrated electronics operate from a 24 VDC supply, receive a ±10 V command, and return a matching feedback signal for closed-loop control. Electrical demand reaches 72 W when the solenoids are fully energized. Pilot oil is taken internally while drained oil is routed externally, and the pilot stage needs 8.5 L/min to move from zero to full stroke. With a 10 bar pressure drop across the main stage the spool passes a nominal flow of 200 L/min, supporting medium-size cylinder or motor circuits.
The assembly functions in ambient air from −20 to +50 °C and accepts hydraulic fluid between −20 and +80 °C, keeping seals within safe temperature limits. A housing rated IP65 blocks dust and low-pressure water jets, while the flow path tolerates oil viscosities from 20 to 380 mm²/s to suit a wide range of fluids. Ports P, A, and B withstand operating pressures up to 350 bar, enabling use in high-pressure machine lines, and the spool can accommodate a peak flow of 460 L/min when fully opened, allowing large actuators to be driven without parallel valves. The external pilot drain line may be pressurized to 250 bar, maintaining control stability in back-pressure conditions. Installed mass is 11.2 kg, a figure that allows one person to position the unit yet still requires a rigid mounting surface.
Technical Specifications
Ambient Temp Range
-20 to +50 °C
Command/actual Value
±10 V
Degree Of Protection
IP65
Fluid Temp Range
-20 to +80 °C
Max Operating Pressure (p,a,b)
350 bar
Max Permissible Flow
460 L/min
Max Power
72 W
Mounting Interface
ISO 4401-07-06-0-94
Nominal Flow (delta P 10 Bar)
200 L/min
Pilot Drain Max Pressure (external)
250 bar
Pilot Oil Drain
External
Pilot Oil Flow (step 0-100%)
8.5 L/min
Pilot Oil Supply
Internal
Supply Voltage
24 VDC
Viscosity Range
20 to 380 mm2/s
Weight
11.2 kg
1620 Old Apex Road
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