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The American Petroleum Institute (API) suite of fixed equipment standards—such as API 510 , API 570 , and API RP 571 —traditionally dictates what damage mechanisms look like and when to inspect them. However, plant inspectors frequently struggled to find standardized, granular guidance on how to execute Non-Destructive Evaluation (NDE) for those mechanisms.
It is a standard developed by the American Petroleum Institute (API) to provide guidance on establishing and managing a Risk-Based Inspection (RBI) program specifically for pressure relief devices (PRDs), such as pressure relief valves and rupture disks.
Reports must include:
refers to Recommended Practice 586 , titled "Risk-Based Inspection of Pressure Relieving Devices."
addresses this specific gap. It consolidates specialized NDE methodologies, explicit technique limitations, and selection variables to give reliability engineers high-confidence data for Fitness-for-Service (FFS) modeling. Structure and Section Breakdown api rp 586
This section bridges the gap between basic visual or remote asset inspection and quantitative wall-loss evaluation.
Here is the detailed technical content for , formally titled: The American Petroleum Institute (API) suite of fixed
The recommended practice covers several critical areas:
API RP 586 helps facilities decide when to inspect safety valves based on the risk they pose, rather than simply following a fixed calendar schedule. This helps optimize maintenance budgets and improve plant safety. Reports must include: refers to Recommended Practice 586
Refinery tank farm (50 tanks, 200 valves, 50 flanges). Goal: Identify and quantify methane leaks >10 g/hr for internal reduction target. Using API RP 586 QOGI approach: