Servo Valves

High-Precision Hydraulic Control

Servo valves are advanced hydraulic components designed to deliver precise, proportional control of pressure and flow in response to electrical input signals. By converting an electrical command into a hydraulic output, servo valves enable smooth, accurate control of actuators such as cylinders and motors, making them essential in high-performance and safety-critical applications.

At Hydraulics Online, we supply these valves from a wide range of global manufacturers including Eaton Vickers, Voith, and many others… with expert advice to help you select the right valve for your system.

Our website shows only a selection of what we supply. For impartial advice and access to our full range of hydraulic components, contact our expert team.

Servo valves. For impartial advice and access to our full range of hydraulic components, contact our expert team.

Servo valves receive pressurised hydraulic fluid from a source, typically a pump, and then transfer it to an actuator at a pressure and flow rate proportional to the electrical signal they receive.

They are commonly used for:

Directional control – managing fluid paths with precision
Pressure regulation – maintaining exact pressure levels under varying loads
Flow control – adjusting actuator speed smoothly and accurately

Servo valves are often paired with electronic feedback systems to achieve extremely fine control of motion and force.

High precision – delivers accurate control of actuator speed, force, and position
Dynamic response – reacts quickly to electrical input signals for real-time control
Smooth operation – enables controlled acceleration and deceleration without jerks
Versatile functionality – suitable for pressure, flow, and directional control tasks

Reliable performance – proven in demanding industrial and mobile environments

How do servo valves differ from proportional valves? Servo valves offer higher precision and faster response times, while proportional valves provide moderately accurate control at lower cost.

Can servo valves be used in closed-loop systems? Yes! They are often integrated with electronic feedback for precise closed-loop control.

Are servo valves suitable for high-pressure applications? Absolutely! They are designed to perform reliably under demanding operating conditions.