4-Way Directional Servo Valves Type 4WS.2E (NG10)

With subplates conforming to relevant ISO standards, and operating pressures of up to 350 bar, the Bosch Rexroth 4-way valve range is highly reliable and robust for operation in a wide range of applications.

View our detailed specifications below

Servo Valve specifications

Directional Servo Valve in 4-Way Design | Type 4WS.2E (NG10)

Size: 10
Component series: 5X
Maximum operating pressure: 315 bar
Maximum flow: 180 l/min

Features:

Valve to control position, force, pressure or velocity
2-stage servo valve with mechanical or mechanical and electric return
1st stage as nozzle flapper plate amplifier
Subplate mounting: Porting pattern according to ISO 4401
Dry control motor, no pollution of the solenoid gaps by the hydraulic fluid
Can also be used as 3-way version
Wear-free control spool return element
Control: External control electronics in Eurocard format or in modular design (separate order), see page 8 Or control electronics integrated in the valve (OBE)
Valve and integrated control electronics are adjusted and tested
Control spool with flow force compensation
Control sleeve centrically fixed; thus low susceptibility to temperature and pressure
Pressure chambers at the control sleeve with gap seal, no wear of the seal ring
Filter for 1st stage externally accessible

Directional Servo Valve in 4 Way Version | Type 4WSE3E16 (NG16)

Size: 16
Component series: 2X
Maximum operating pressure: 350 bar
Maximum flow: 570 l/min

Features:

Valve for position, force, pressure or velocity control
3-stage servo-valve with electrical position control of the control spool of the 3rd stage, position sensing of the control spool by means of an inductive position transducer
High dynamics 2-stage pilot control valve of size 6
1st stage as nozzle flapper plate amplifier
Filter for 1st stage externally accessible and replaceable
Subplate mounting: Porting pattern according to ISO 4401
Can also be used as 3-way version
Valve and integrated control electronics are adjusted and tested in the factory
Optimised valve control loop
High response sensitivity, very low hysteresis and zero point drift
Internal or external pilot oil supply and return
Gap seals at pressure chambers of the control sleeve, no wear of O-ring

Directional Servo Valve in 4 Way Version | Type 4WSE3E25 (NG25)

Size: 25
Component series: 3X
Maximum operating pressure: 350 bar
Maximum flow: 1 020 l/min

Features:

Valve for position, force, pressure or velocity control
3-stage servo-valve with electrical position control of the control spool of the 3rd stage, position sensing of the control spool by means of an inductive position transducer
High dynamics 2-stage pilot control valve of size 6
1st stage as nozzle flapper plate amplifier
Filter for 1st stage externally accessible and replaceable
Subplate mounting: Porting pattern according to ISO 4401
Can also be used as 3-way version
Valve and integrated control electronics are adjusted and tested in the factory
Optimized valve control loop
High response sensitivity, very low hysteresis and zero point drift
Internal or external pilot oil supply and return
Gap seals at pressure chambers of the control sleeve, no wear of O-ring

Directional Servo Valve in 4 Way Version | Type 4WSE3E32 (NG32)

Size: 32
Component series: 5X
Maximum operating pressure: 315 bar
Maximum flow: 1 800 l/min

Features:

Valve for position, force, pressure or velocity control
3-stage servo-valve with electrical position control of the control spool of the 3rd stage, position sensing of the control spool by means of an inductive position transducer
High dynamics 2-stage pilot control valve of size 6
1st stage as nozzle flapper plate amplifier
Filter for 1st stage externally accessible and replaceable
Subplate mounting: Porting pattern according to ISO 4401
Can also be used as 3-way version
Valve and integrated control electronics are adjusted and tested in the factory
Optimized valve control loop
High response sensitivity, very low hysteresis and zero point drift
Internal or external pilot oil supply and return
Gap seals at pressure chambers of the control sleeve, no O-ring wear