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Control and Isolation Valve Qualification Testing

Posted in Final Control Element on Friday, December 6th, 2019. No comments yet
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Just as people require certain qualifications to perform specific tasks, so does instrumentation, final control elements, control systems and other components in an automation architecture. In a very informative Chemical Engineering Progress (CEP) article, Purchase a Qualified Valve for Your Operation, Emerson’s Jason Jablonski highlights numerous qualification standards and criteria for control and isolation valves. […]

Improving Control Valve Reliability through Valve Condition Monitoring

Posted in Digital Transformation, Final Control Element on Monday, November 18th, 2019. No comments yet
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An Asian refiner sought to improve reliable operations around their control valves a decade ago. I caught up with Emerson’s Sumitaka Ichiki who shared the story of their journey to more reliable operations. Using the Fisher FlowScanner valve diagnostic software, they analyzed the dynamic response of many of their critical valves. Based on their findings, […]

Valve Condition Monitoring Connected Services

Posted in Controllers & Positioners on Monday, October 28th, 2019. No comments yet
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One path in digital transformation programs is to drive reliability improvements of plant assets by moving from reactive maintenance to condition based maintenance of the equipment. I caught up with Emerson’s Saurabh Pathak who shared a case study with me of a large, Middle Eastern natural gas transportation & distribution company. This company had a […]

Approaches to Partial Stroke Testing Safety Valves

Posted in Final Control Element, Safety on Wednesday, October 23rd, 2019. No comments yet
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The safety valve within a safety instrumented function (SIF) must be tested regularly to help assure proper operation in the event of a safety demand. Operators usually perform an offline full stroke test during a scheduled shutdown because of the impact of this test on the process. But when a SIF (a.k.a. safety loop) requires […]

Assuring Control Valve Quality

Posted in Final Control Element on Friday, October 4th, 2019. No comments yet
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Control valves are the workhorses of most processes. They touch the process fluids and often contend with many challenges—abrasive and corrosive fluids, high pressures and temperatures, and vibrations caused by piping and surrounding process equipment, to name a few. In a Processing magazine article, Valve Sourcing Goes Global, Emerson’s Brant Pfantz highlights the many qualifications […]