The latest installment of the Ask the Automation Pros series from ISA describes what to consider when specifying process control valves. This paper provides additional information.
From ISA’s Ask the Automation Pros Series What is the best inherent flow characteristic for controllability, considering the effect of valve resolution and lost motion, process gain, piping system design, system pressure drops, fouling, flashing, and cavitation? Gregory K. McMillan, Michael Taube, Michel Ruel, Mark Darby and R. Russell Rhinehart provide answers to this month’s question. This discussion is part of the Ask the Automation Pros series from the International Society of Automation, a regularly occurring column by Greg McMillan, who is an industry consultant, author, and 2010 ISA Life Achievement Award recipient.