(167b) Pressure Relief Valve Inspection, Testing and Maintenance Intervals
AIChE Spring Meeting and Global Congress on Process Safety
2016
2016 AIChE Spring Meeting and 12th Global Congress on Process Safety
Global Congress on Process Safety
Asset Integrity, Damage Mechanisms, and Condition Monitoring
Wednesday, April 13, 2016 - 10:45am to 11:15am
However, the testing and inspection interval listed, ten years, is the maximum time span between shop inspections and overhaul. Further direction is often requested for determining the proper interval for valves in typical process services, especially in cases of PRV chattering. Recent API 520 Part II guidance on performing engineering analyses for PRV installations, based on service and specific installation, is included here.
In this paper, a decision-making approach to determine these intervals based on a combined understanding of risk-based inspection, quality assurance, engineering analysis, and facility experience is presented. The approach provides process operators and managers with additional assistance in making this determination.
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