Bosch Rexroth | 4WSE2ED10-5X45B13-315K31EV
4WSE2ED10-5X/45B13-315K31EV
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The 4WSE2ED10-5X/45B13-315K31EV is an electrohydraulic valve in the 4WS Servo Valves series manufactured by Bosch Rexroth for precision hydraulic automation. It interprets a ±10 mA command value signal to position the spool, while a ±10 mA actual value signal reports the spool position for closed-loop control. Internal electronics run on a ±15 V supply with a tolerance of ±3%, and the circuitry draws no more than 150 mA, which defines the power supply requirement. A maximum response sensitivity of 0.1% permits small input changes to generate proportional flow shifts, and hysteresis is limited to 0.8% to reduce deviation when the signal crosses zero. The valve is rated to pass 45 l/min at a rated pressure differential of 70 bar, balancing flow capacity with control accuracy under typical service conditions.
The hydraulic section tolerates operating pressures up to 315 bar, allowing it to control actuators in high-pressure systems without derating. Pilot oil is supplied internally, so no separate feed line is needed, and it is returned externally to keep pilot flow heat out of the main circuit. The mounting interface follows the ISO 4401-05-05-0-05 porting pattern for straightforward manifold installation, and the K31 electrical connection provides a standardized plug for command and feedback wiring. FKM seals contain the working fluid and resist common hydraulic oils, while the total mass of 3.65 kg simplifies handling during assembly. To preserve the tight clearances of the spool and sleeve, the hydraulic medium must meet cleanliness class ISO 4406 18/16/13.
Technical Specifications
Actual Value Signal
±10 mA
Cleanliness Class
ISO 4406 18/16/13
Command Value Signal
±10 mA
Current Consumption (max)
150 mA
Electrical Connection
K31
Hysteresis (max)
0.8%
Maximum Operating Pressure
315 bar
Pilot Oil Return
External
Pilot Oil Supply
Internal
Porting Pattern
ISO 4401-05-05-0-05
Rated Flow
45 l/min
Rated Pressure Differential
70 bar
Response Sensitivity (max)
0.1%
Seal Material
FKM
Supply Voltage
±15 V (±3%)
Weight
3.65 kg
1620 Old Apex Road
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