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Testing the Safety Valve in a Safety Instrumented Function
Safety instrumented functions (SIFs), also known as safety loops, are comprised of a sensor to sense the process condition, a logic solver to decide the safety action to take, and a final element to...
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Separate Versus Integral Final Element Accessories in Safety Applications
Final elements such as safety shutdown valves, emergency isolation valves, blowdown valves, etc., in safety instrumented functions (SIFs) are equipped with various accessories such as digital valve...
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Extending Final Element Proof Testing Intervals
I received a question from a very old post here on the blog, Credit for Partial Stroke Tests in Verification Process. The person was trying to get a better understanding about this chart showing how...
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