Bosch Rexroth | 4WS2EM10-5X75B11ET315K31DV
4WS2EM10-5X/75B11ET315K31DV
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The 4WS2EM10-5X/75B11ET315K31DV servo valve belongs to the 4WS Servo Valves series from Bosch Rexroth and meters hydraulic flow in automated motion systems. At a differential pressure of 70 bar it provides a rated flow of 75 l/min, giving predictable actuator speed. The assembly tolerates operating pressures up to 315 bar, so it fits high-pressure circuits. Command signals are accepted as an analog input, allowing direct connection to proportional controllers. An 85 ohm coil is installed to match common drive electronics, and the coil draws a rated current of 30 mA which simplifies power-supply sizing. The housing carries an IP65 protection class that shields it from dust and low-pressure water jets. Total mass is 3.56 kg, enabling manual handling during installation. Mineral oil fluids of type HL or HLP are specified for compatibility with standard hydraulic reservoirs.
Porting follows the ISO 4401-05-05-0-05 pattern so the valve can mount on standard subplates without adapters. It is secured by M6×70 screws rated to ISO 4762-10.9, providing sufficient clamp load for a reliable seal. The pilot stage accepts supply pressures up to 315 bar to match the main circuit rating. Each metering edge withstands a differential pressure of 175 bar, preventing flow instabilities during rapid shifts. Fluoroelastomer (FKM) seals are fitted to resist heat and oil additives. System cleanliness must be at least ISO 4406 (c) 18/16/13 to limit silt erosion of the spool assembly. Electrical connection is made through an EN 175201-804 plug, and replacement connectors use part number R900223890 for interchangeability across installations.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 18/16/13
Coil Resistance
85 ohm
Hydraulic Fluid
Mineral Oil (HL, HLP)
Mating Connector
EN 175201-804
Mating Connector Part No.
R900223890
Max Δp Per Edge (hfc)
175 bar
Maximum Operating Pressure
315 bar
Mounting Port Pattern
ISO 4401-05-05-0-05
Mounting Screws
M6x70 ISO 4762-10.9
Pilot Supply Pressure Max
315 bar
Protection Class
IP65
Rated Coil Current
30 mA
Rated Flow (Δp=70 Bar)
75 l/min
Seals
FKM
Signal Type
Analog
Weight
3.56 kg
1620 Old Apex Road
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