I saw an email string with a question asking if it's possible to detect all possible failure modes in a safety valve if very intensive and intrusive tests, such as full-stroke testing, leak testing, etc. are performed. Would it be conceivable to use 100% proof test...
I've discussed partial stroke testing (PST) as a diagnostic for the health of a valve in many posts over the years. These posts describe flow applications found in most process manufacturing facilities. But what about high-pressure and hydraulic applications including...
A question was posed this week to Emerson's Mike Boudreaux about how to take credit for partial stoke tests in a performance verification process. Mike leads the process safety systems efforts and was presenting on this topic this week. He wrote up this post to recap...
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