Bosch Rexroth | 4WRZ16W8-100-7X6EG24N9K4V
4WRZ16W8-100-7X/6EG24N9K4/V
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The 4WRZ16W8-100-7X/6EG24N9K4/V valve belongs to the WRZ Proportional Directional Valves series from Bosch Rexroth and modulates flow and pressure in hydraulic automation circuits. It uses a coil with 4.8 Ω resistance measured at 20 °C to build the magnetic force required for spool positioning, and the solenoid is rated for a continuous 100 % duty cycle so it can remain energized without thermal cycling. Electrical power reaches the coil through a DIN EN 175301-803 plug, a standardized connector that simplifies field wiring. The maximum coil current of 1.5 A matches common drive amplifiers and limits heat generation inside the enclosure. An IP65 protection rating prevents dust ingress and water jets from affecting internal parts during regular plant wash-downs. When installed on a subplate the valve weighs 13.4 kg, providing enough mass to resist vibration and maintain port alignment under load.
Hysteresis is held to 6 % or less, which ensures repeatable spool movement when the command signal changes direction. The mounting interface follows ISO 4401-07-06-0-94 so the unit fits standard size 07 manifolds without adapter plates. A nominal flow of 100 l/min at a 10 bar pressure drop supports medium-capacity actuators, while the main stage tolerates operating pressures up to 350 bar for high-force cylinders. Pilot oil is both supplied and drained externally, allowing designers to isolate control oil from the main return line. Port Y may see pressures up to 30 bar, and the return port T can handle 250 bar, giving flexibility in back-pressure circuits. A concealed manual override lets technicians shift the spool during commissioning without exposing moving parts. FKM seals resist high temperature hydraulic fluids and many synthetic oils, completing the valve’s compatibility with demanding industrial media.
Technical Specifications
Coil Resistance (20 °c)
4.8 Ω
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803 Plug
Hysteresis
≤ 6%
Manual Override
Concealed
Max Current
1.5 A
Max Operating Pressure (main Stage)
350 bar
Mounting Interface
ISO 4401-07-06-0-94
Nominal Flow (Δp = 10 Bar)
100 l/min
Pilot Oil Drain
External
Pilot Oil Supply
External
Port Y Max Pressure
30 bar
Return Port T Max Pressure
250 bar
Seal Material
FKM
Type Of Protection
IP65
Weight (subplate Mounting)
13.4 kg
1620 Old Apex Road
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