The Role of Valve Positioners
As a control valve accessory and the interface between the control system and valves, the valve positioner plays a vital role in ensuring reliability and optimal performance in your process control loops. Using a valve positioning device, you can adjust the valves' opening to allow for varying flow rates, from entirely on or off to anywhere in between.
Valve positioners move a valve in the right direction by increasing or reducing the actuator's air load pressure. The position of the valve stem or shaft corresponds to the setpoint from the control system.
On linear control valves, positioners mount to the pneumatic actuator's yolk or top framework. Rotary control valves mount to the end of the shaft. For either set-up, the positioner is attached mechanically to the valve stem or valve shaft, allowing the valve position to respond to the controller's demands.
Valve Positioners from Siemens
SIEMENS offers you a broad choice of positioners to ensure an ideal fit for every application. Visit this link to view a summary of their positioner offerings.
For more information, contact Ives Equipment.
877-768-1600
https://ivesequipment.com
