Bosch Rexroth | 4WS2EM16-2X150B12ET315K8DM
4WS2EM16-2X/150B12ET315K8DM
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The 4WS2EM16-2X/150B12ET315K8DM is a valve in the 4WS Servo Valves series from Bosch Rexroth intended for precise hydraulic automation in motion control loops. Its nominal size 16 matches A16 manifolds to manage medium-frame actuator circuits. A rated flow of 150 l/min establishes the normal controlled volume, while a maximum flow capacity of 320 l/min permits transient peak demand without loss of stability. The unit sustains operating pressures up to 315 bar, and the first-stage inlet is also approved for 315 bar so the pilot spool remains balanced under full system load. Electrical actuation via external electronics converts command signals into spool movement; each coil draws 50 mA and presents 85 Ω resistance, allowing direct interface with standard servo amplifiers.
Four working ports route pressure and return paths, and the porting pattern follows DIN 24340 A16 so the valve bolts directly onto common subplates. The internal pilot oil supply and internal pilot return eliminate separate feed lines, reducing plumbing complexity. Circuit designers follow connection diagram ISO 4401-07-07-0-05 to align P, T, A, and B galleries correctly. Electrical wiring is completed through a 4-pole VG 095 342 connector that simplifies field termination. Mechanical feedback from the spool to the first stage maintains accurate null position without additional sensors. The valve can be installed in any orientation, which simplifies manifold layout inside compact machines. These attributes deliver responsive flow control within closed-loop hydraulic systems operating at high pressure.
Technical Specifications
1st Stage Max Inlet Pressure
315 bar
Actuation Type
Electrical (External Electronics)
Coil Rated Current
50 mA Per Coil
Coil Resistance
85 Ohm Per Coil
Connection Diagram
ISO 4401-07-07-0-05
Electrical Connector
4-Pole VG 095 342
Feedback Type
Mechanical
Installation Position
Any
Max Flow
320 l/min
Max Operating Pressure
315 bar
Nominal Size
16
Number Of Ports
4
Pilot Oil Return
Internal
Pilot Oil Supply
Internal
Porting Pattern
DIN 24340 A16
Rated Flow
150 l/min
1620 Old Apex Road
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