Bosch Rexroth | 4WRKE25W2-350-216
4WRKE25W2-350-21/6
Request a Quote
In-Stock, Ships 1-2 Days
What Happens Next?
Email Confirmation
You will get an email confirming we have received your inquiry.
Dedicated Account Manager
A team member will review your request and be in touch concerning any questions or specifications.
Quote Delivered
You will receive a comprehensive quote tailored to your specific needs.
The 4WRKE25W2-350-21/6 directional valve is produced by Bosch Rexroth as part of the 4WRKE Directional Valves series. It meters hydraulic flow and pressure in automated machinery, using a 24 V DC supply voltage to energize its proportional solenoids for spool positioning. The electrical power draw is limited to 72 W so control cabinets can be sized accordingly, while a maximum current of 1.5 A defines the rating for the supply circuit. Connection is made through a DIN EN 175201-804 plug, which simplifies wiring and ensures pin compatibility with common harnesses. An IP65 protection class keeps dust and low-pressure water away from the electronics, supporting installation on exposed manifolds. The ISO 4401-08-07-0-94 porting pattern matches standard subplates, allowing direct replacement of other valves with the same footprint. Ports P, A, and B withstand operating pressures up to 350 bar, and the main stage accommodates flow rates as high as 870 L/min, enabling control of large cylinders or motors.
Under typical working conditions the valve delivers a nominal flow of 350 L/min at a 10 bar differential, providing predictable performance for sizing of actuators. Hysteresis is held below 1 %, so flow repeats closely when command signals fluctuate, and a response sensitivity not exceeding 0.5 % lets small current changes adjust the spool for fine metering. The pilot section tolerates supply pressures up to 315 bar, and it draws 11.7 L/min when the control signal moves from 0 % to 100 % at that pressure; this figure assists in sizing the pilot pump. If an external drain is used, port T can see return pressures up to 250 bar, whereas an internal drain limits port T pressure to 10 bar to prevent back-pressure interference with spool movement. The assembled unit weighs 16.8 kg, a factor to consider for manifold support and handling during service.
Technical Specifications
Electrical Connection
DIN EN 175201-804
Hysteresis
1% (max)
Max Current
1.5 A
Max Main Flow
870 L/min
Max Operating Pressure (p,a,b)
350 bar
Max Pilot Supply Pressure
315 bar
Max Power
72 W
Max Return Pressure (port T, External)
250 bar
Nominal Flow (delta P 10 Bar)
350 L/min
Pilot Oil Flow (0-100%, 315 Bar)
11.7 L/min
Port T Pressure (internal Drain)
10 bar (max)
Porting Pattern
ISO 4401-08-07-0-94
Protection Class
IP65
Response Sensitivity
0.5% (max)
Supply Voltage
24 V DC
Weight
16.8 kg
1620 Old Apex Road
Shipping & Payment Options
