An actuated valve is a type of valve equipped with a mechanical device called an actuator, which automates the opening and closing process. Unlike manual valves that rely on human intervention, actuated valves operate using external power sources such as electricity, air (pneumatics), or hydraulic fluid.
Actuated valves are commonly used in industries such as oil and gas, water treatment, food and beverage, and pharmaceuticals. They are available in various designs, including ball, butterfly, globe, and gate valves, with actuators providing on/off or modulating control. These valves are highly valued for their ability to improve operational efficiency, reduce manual labor, and enhance system safety by integrating into automated control systems.
By automating fluid flow, actuated valves contribute significantly to maintaining process consistency, ensuring accuracy, and optimising performance across diverse industrial applications.
How Do Actuated Valves Work?
Actuated valves operate by converting an external power source into mechanical motion to control the valve's position. The actuator is the key component, receiving signals from a control system and using energy sources like electricity, compressed air (pneumatics), or hydraulic fluid to drive the valve's mechanism. Depending on the type of actuator, this motion can be rotary or linear, allowing the valve to open, close, or modulate flow.
For example, in a pneumatic actuated valve, compressed air enters the actuator, generating force to move a piston or diaphragm, which in turn rotates or slides the valve mechanism. Electric actuated valves use motors to achieve similar motion, while hydraulic actuators rely on pressurised fluid.