Bosch Rexroth | 4WS2EM10-5X30B11ET315K8EV
4WS2EM10-5X/30B11ET315K8EV
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The 4WS2EM10-5X/30B11ET315K8EV servo valve belongs to the 4WS Servo Valves series from Bosch Rexroth and is intended to meter pressure and flow in automated hydraulic drives. At a rated flow of 30 l/min, the valve meters oil accurately, a figure defined at a 70 bar reference pressure. Both the operating and pilot stages tolerate 315 bar, allowing the unit to work on high-pressure manifolds. The body follows the ISO 4401-05-05-0-05 mounting pattern, so it fits standardized subplates without adaptation. Internal pilot supply and return passages remove the need for external lines. HL or HLP fluids specified in DIN 51524 are permitted, and service life is supported when oil cleanliness is maintained at class 18/16/13 per ISO 4406. An FKM seal set keeps the circuit leak-free under these conditions.
The valve is driven by an analog signal that positions the spool proportionally to command input. Each coil exhibits 85 Ω resistance and 0.25 H inductance in parallel, parameters that shape the amplifier design. A nominal current of 30 mA per coil produces the required magnetic force without excessive heating. The enclosure rating of IP65 prevents dust ingress and water spray during machine operation. A mechanical return system centers the spool when power is removed. Overall weight is 3.56 kg, enabling manual installation. These electrical and mechanical characteristics complement the hydraulic capabilities noted earlier and support reliable closed-loop control in servo-hydraulic systems.
Technical Specifications
Cleanliness Class (iso 4406)
18/16/13
Coil Inductance (parallel)
0.25 H
Coil Resistance
85 Ω (per coil)
Hydraulic Fluid
HL, HLP (DIN 51524)
Max Operating Pressure
315 bar
Max Pilot Pressure
315 bar
Mounting Interface
ISO 4401-05-05-0-05
Pilot Oil Supply/return
Internal/Internal
Protection Class
IP65
Rated Coil Current
30 mA (per coil)
Rated Flow
30 l/min
Rated Flow Reference Pressure
70 bar
Return System
Mechanical
Seal Material
FKM
Signal Type
Analog
Weight
3.56 kg
1620 Old Apex Road
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