Servo Valve For External Electronics (Rexroth - BOSCH). - 90 L/min , Valve Pressure Differential = 70 bar. - External Supply , External Drain. - Two Stage , Type 4WS2E. - Nominal Size 10. - Connection Location to ISO 4401. - Code : 4401-05-0-094.

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Servo Valve For External Electronics (Rexroth - BOSCH). - 90 L/min , Valve Pressure Differential = 70 bar. - External Supply , External Drain. - Two Stage , Type 4WS2E. - Nominal Size 10. - Connection Location to ISO 4401. - Code : 4401-05-0-094.
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4WS2EM_10-5X-90B11-_
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Modified on: August 22,2026  
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Specifications
Supplier part number: 4WS2EM_10-5X-90B11-_
Name:Servo Valve For External Electronics (Rexroth - BOSCH). - 90 L/min , Valve Pressure Differential = 70 bar. - External Supply , External Drain. - Two Stage , Type 4WS2E. - Nominal Size 10. - Connection Location to ISO 4401. - Code : 4401-05-0-094.
Description:Based on the search results, the Bosch Rexroth 4WS2EM10-5X/90B11-315K31 servo valve exactly matches your specified configuration of a 90 L/min nominal flow at 70 bar with an external supply and external drain pilot oil setup . ✅ Confirmed Valve Specifications The table below summarizes the key parameters confirmed by the manufacturer's documentation: Parameter Specification Model Series 4WS2E – 2-stage directional servo valve for external electronics Nominal Size 10 (NG10) Nominal Flow (at 70 bar Δp) 90 L/min (±10% tolerance) Max. Operating Pressure 315 bar Pilot Oil Supply/Drain – – External supply, external drain Feedback Mechanical First Stage Type Nozzle/flapper plate amplifier Porting Pattern ISO 4401 🔧 Ordering Code Breakdown Your specifications translate into the following ordering code structure. The - symbol in the code denotes the external supply, external drain configuration: 4WS2E: Electrically operated 2-stage servo valve for external control electronics 10: Nominal size 10 (NG10) 5X: Component series 50 to 59 (installation dimensions unchanged) 90: Nominal flow: 90 L/min at 70 bar valve pressure differential B: Valve version code 11: Coil number for external electronics (30 mA / 85 Ω per coil) –: Pilot oil supply: external supply, external drain 315: Inlet pressure range to 1st stage: 10 to 315 bar K31: Electrical connection code (without plug-in connector, with component plug) A complete order code example for your configuration would be structured as: 4WS2EM10-5X/90B11-315K31EV . The search results also confirm this valve is available with the part number R900949502 for a similar model variant .
    
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