Software checks for control valve problems
Hubertus, Wis. -Sticking control valves often cause the control loop to cycle and can permeate through an entire plant. A new version of ExperTune’s PID Loop Analyzer includes an on-line wizard that test for control valve problems such as stiction, hysteresis, and sizing and reports quantified findings. Where tested stiction is found to be larger than 1%, repairing the valve yields better overall performance and can reduce variability in the final product.
ExperTune
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