In the process industry, it is crucial to ensure safety, high product quality, strict environmental
compliance, and optimum economics. Among other important factors, this calls for high
performance of the control loops. One of the main root causes for poor performance is
control valve malfunctions. In particular, stiction is a long-standing valve problem in the
process industry, causing limit cycles with a negative impact on process performance.
Therefore, it is important to detect this phenomenon as early as possible, to distinguish it …