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Posts Tagged ‘DVC6200 SIS’

Safety Shutdown Valve Local Control Panel

Posted in Final Control Element on Tuesday, October 4th, 2016. No comments yet
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For process manufacturers and producers with safety shutdown applications, local control panels are often installed to provide visibility and control actions to operators locally out in the process area. Actions can be taken at these panels to initiate an emergency shutdown. I caught up with Emerson’s Riyaz Ali about how these local control panels work […]

Testing Valves in Safety Instrumented Functions

Posted in Controllers & Positioners, Safety on Friday, August 26th, 2016. No comments yet
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Safety instrumented systems are a critical part of process manufacturers and producers overall process safety management in protecting personnel, environment, equipment, property, reputation and image. In an Offshore Engineer article, Safety Instrumented Function loop ‘final element’ problems and solutions, Emerson’s Riyaz Ali describes the importance and ways to test the final control elements in these […]

Separate versus Integral Final Element Accessories Questions

Posted in Final Control Element, Safety on Thursday, December 10th, 2015. No comments yet
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A post from a few years ago, Separate Versus Integral Final Element Accessories in Safety Applications, continues to generate some good questions. I thought I’d make these questions and associated answers more visible in today’s post. Here’s the first question: I understood the whole description, But while calculating PFDavg, We will have to add the […]

Safety Instrumented System Solenoid-Operated Valve Approaches

Posted in Safety on Thursday, October 16th, 2014. No comments yet
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Last week at the Emerson Exchange conference, I caught up with Emerson’s Riyaz Ali. You may recall Riyaz from many safety instrumented system-related posts. We discussed some of the trends in integrated positioners + solenoid valves + limit switches + valve position transmitters. Riyaz felt that this approach not in line with the safety instrumented […]

Safety Valve Positioners and Common Cause Failure Questions

Posted in Final Control Element, Safety on Thursday, February 27th, 2014. 5 comments so far
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If you work with pumps in your facility, you may be familiar with the Empowering Pumps site, a wealth of information to help you with these important assets in your plant. Founder Charli K. Matthews has launched something similar for valves, Empowering Valves. I had the opportunity to contribute a guest post, Common Cause Failures […]