Bosch Rexroth | 4WS2EM10-5X10B11T315K31CV-114
4WS2EM10-5X/10B11T315K31CV-114
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The 4WS2EM10-5X/10B11T315K31CV-114 servo valve belongs to the 4WS Servo Valves series produced by Bosch Rexroth for hydraulic automation. At the ISO 4401-05-05-0-05 mounting interface it connects directly to standard subplates, simplifying manifold layout. The unit meters a rated flow of 10 l/min when the pressure drop reaches 70 bar, delivering predictable actuator speed. Main ports tolerate 315 bar so the housing endures typical system pressures. An IP65 protection class shields the coil enclosure from dust and water jets found in factory settings. System fluid must reach ISO 4406 (c) 18/16/13 cleanliness to limit spool wear and maintain accuracy. FKM seals withstand mineral oils and elevated temperatures, controlling leakage over extended service life. The assembly weighs 3.56 kg, allowing direct installation without additional support.
The valve’s electromagnetic stage draws a rated coil current of 30 mA; this modest requirement eases sizing of control power supplies. A winding resistance of 85 Ω and a series inductance of 1.0 H set the electrical time constant for precise spool positioning. Pilot oil is supplied externally so users can feed clean, temperature-stable fluid, while an internal return eliminates extra drain lines. The pilot circuit functions between 10 bar and 315 bar, with the lower limit preventing cavitation and the upper limit matching peak system pressure. Port T endures static pressure up to 10 bar, accommodating moderate backpressure from filters or coolers. These hydraulic and electrical parameters enable accurate, repeatable flow control in presses, injection-molding machines, and other automated equipment.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 18/16/13
Coil Resistance
85 Ω
Inductance (series)
1.0 H
Main Ports Max Pressure
315 bar
Max Pilot Pressure
315 bar
Min Pilot Pressure
10 bar
Mounting Interface
ISO 4401-05-05-0-05
Pilot Oil Return
Internal
Pilot Oil Supply
External
Port T Static Pressure (max)
10 bar
Protection Class
IP65
Rated Coil Current
30 mA
Rated Flow
10 l/min
Rated Flow Differential Pressure
70 bar
Seal Material
FKM
Weight
3.56 kg
1620 Old Apex Road
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