PST Archives - Emerson Automation Experts - Emerson Automation Experts

Posts Tagged ‘PST’

Positioners and Partial Stroke Tests in Safety Applications

Posted in Final Control Element, Safety on Wednesday, February 4th, 2009. 8 comments so far
Tags: , , , , , , , , , , , , , , ,

InTech magazine has a web exclusive on the importance of safety valves in a safety instrumented system. The article, Valve failure: Not an Option, describes methods of implementing partial stroke testing (PST) to reduce the probability of failure upon demand, average (PFDavg). For those not familiar with a partial stroke test, I found this definition: […]