Valves used in safety applications tend to stay in opened or closed positions for very long, time intervals. As Emerson’s Joe McHugh explained in a Plant Engineering article, Double up on solenoid safety: …all valves experience stiction if they remain inactive for too long. (Note: Stiction is the friction that tends to prevent stationary surfaces […]
Emerson’s Mike Boudreaux has been receiving great questions on process safety and the IEC 61511 global safety standard during some of the recent Safety Lifecycle Seminars. He’s written a post to address one of them: A very common topic of discussion is the sharing of field devices between the basic process control system (BPCS) and […]
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