Hi all,
I’ve come across situations where a control valve still doesn’t perform properly even after proper calibration.
In some cases, the valve shows issues like unstable flow, delayed response, or incorrect positioning despite calibration being done correctly.
From a practical standpoint, what could be the common reasons behind this?
- Could it be related to actuator problems or valve sizing?
- Issues with positioner tuning or signal mismatch?
- Or something related to process conditions like pressure or flow variations?
With control valves being widely used and their applications increasing across industries, these kinds of issues seem to be more noticeable in real systems.
Would appreciate insights from those who have faced similar problems in the field.