PSV Assessment



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Keystone provided engineering and design services to evaluate the sizing and hydraulics of relief valves at a refinery in Northwest, Louisiana. The PSV assessment included 404 PSVs and 31 total units. The scope of work included site visit per unit for data collection, the design basis for applicable scope in each unit, API 521 calculation for each PSV reviewed, a summary report including unit limitations, and an updated model of the relief system in Visual Flare.

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