Simple manual valves are adequate for low precision work. However, some pipe systems necessitate a high level of precision when it comes to controlling liquid flow. Therefore, engineers frequently use servo valves to provide high degrees of precision when required.
A valve is a device used to control liquid flow in hydraulics, which is the applied science that deals with the mechanical properties of liquids. Valves are used to stop or start the flow, direct the flow, increase or decrease its speed, and release or regulate the pressure created by the flow.
A servo valve is a high-performance device used to manipulate complex pipe systems.
It is not always possible to operate valves manually in complex piping systems. This does not guarantee accuracy, and the flow may be too large to manage manually. Manual control can also be time-consuming and dangerous when dealing with large volumes, pressures, temperatures, or chemicals.
Servo valves make managing piping systems much easier and more efficient, particularly closed-loop systems. This is because they operate remotely and rely on electrical signals.
How do servo valves work?
When you need to change the flow inside a piping system, whether to stop or start it, reroute it, change the pressure, or modify its velocity, all you have to do is use a digital control panel to send a low-powered electrical signal to the relevant servo valve in your system.
This low-power signal is routed through an amplifier, which increases it until it is strong enough to change the position of the servo valve. The servo valve then manipulates the actuator to make the desired changes to the flow. In addition, feedback is directed to the servo valve because the system is closed-loop. This feedback allows the servo valve to produce a more precise response to the received command.
Servo valves are used wherever precision and control are required. They are often used in systems that require efficiency and are designed with accuracy and control in mind. Servo valves are used in various applications, including regulating fluid flows at hydroelectric power plants and mining sites, regulating fuel flow in aircraft engines, and blow moulding or manufacturing hollowed plastic.
Furthermore, due to the high workload on servo valves, they are typically expensive. As a result, many engineers choose proportional valves over servo valves when they determine that they do not require the accuracy and detail that servo valves provide. In addition, the expense of purchasing new servo valves causes many engineers to seek out servo valve repair services when their servo valves fail.
Contact Sealtec Hydraulics for details
Sealtec Hydraulics is the official distributor of star servo valves. In addition, we offer in-house repair of all types of servo valves, including Moog, Rexroth, Vickers, Parker, Abex, Denision Ext and more. To discuss how our hydraulic fitters and turners can assist you, get in touch with our team today.