Modified on:
August 22,2026
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Supplier part number:
4WS2EM_10-5X-75B11T_
Name: Servo Valve For External Electronics (Rexroth - BOSCH). - 75 L/min , Valve Pressure Differential = 70 bar. - T - External Supply , Internal Drain. - Two Stage , Type 4WS2E. - Nominal Size 10. - Connection Location to ISO 4401. - Code : 4401-04-0-094. Description: Based on the search results, the Bosch Rexroth 4WS2EM10-5X/75B11T315K31EV servo valve precisely matches your specified configuration of 75 L/min at 70 bar with a T - External Supply, Internal Drain pilot oil supply and is a standard product offering.
✅ Confirmed Valve Specifications
Parameter Specification Source(s)
Model Series 4WS2E – 2-stage directional servo valve for external electronics
Nominal Size 10 (NG10)
Nominal Flow (at 70 bar Δp) 75 L/min (±10% tolerance)
Max. Operating Pressure 315 bar
Pilot Oil Supply/Drain T – External supply, internal drain
Feedback Mechanical
First Stage Type Nozzle/flapper plate amplifier
Porting Pattern ISO 4401
Component Series 5X (Series 50 to 59, dimensions unchanged)
🔧 Ordering Code Breakdown
Your specifications translate into the following Rexroth ordering code structure, confirmed by technical documentation and product listings:
4WS2E: Electrically operated 2-stage servo valve for external control electronics
10: Nominal size 10 (NG10)
5X: Component series 50 to 59
75: Nominal flow: 75 L/min at 70 bar valve pressure differential
B: Valve version code
11: Coil number for external electronics (30 mA / 85 Ω per coil)
T: Pilot oil supply: external supply, internal drain
315: Inlet pressure range to 1st stage: 10 to 315 bar
K31: Electrical connection code
A complete order code example for your configuration would be structured as:
4WS2EM10-5X/75B11T315K31EV.
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70bar
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