Positioners

Valve positioners are devices used in industrial settings to accurately control and adjust the position of a valve. Valves are essential components in various systems, such as pipelines, manufacturing processes, and power plants, that regulate the flow of fluids or gases.

A valve positioner is typically attached to the actuator of the valve and works in conjunction with it. Its primary function is to receive control signals, typically from a controller or an automated system, and convert them into precise movements that position the valve at the desired opening or closing level. This enables precise control over the flow rate or pressure of the fluid or gas passing through the valve.

Valve positioners employ different mechanisms to achieve accurate valve positioning. They may use mechanical linkages, pneumatic or electro-pneumatic systems, or even digital technologies like microprocessors and sensors. The positioner continuously monitors the valve's position and adjusts it based on the input signals it receives. Some advanced valve positioners can also provide feedback on the valve's position and performance.

By utilizing a valve positioner, operators can achieve enhanced control and reliability in various industrial processes. It helps improve process efficiency, maintain consistent product quality, and ensure safety by enabling precise and responsive control over the valves' positions.