Preparation Safety Precautions Work Permit Process Part 1: Control Valve Actuator Visual Inspection: Actuator to Valve Connection: Operational Movement: Actuation Mechanism Response Time of Actuator Part 2: Control Valve Positioner Visual Inspection Input Control Signal Feedback Signal Calibration Check Click here for Step by Step Calibration of Control Valve Positioner Positioner Performance Air Release Position … Continue reading Checklist for Conducting a Running Inspection of a Control Valve in a Process Area