API 510 - Pressure Vessel Inspection Code

Last update: Jan 13, 2017

API 510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration, is an inspection code, written and published by the American Petroleum Institute (API), to establish standards for the inspection, repair, alteration, and rerating activities for pressure vessels and the pressure relieving devices protecting these vessels. The first edition of the code was originally published in June of 1997 and the most recent release was the 10th edition, published in May of 2014. 

API 510 applies to most refining and chemical process vessels that have been placed into service. It covers vessels which have been constructed under certain construction codes, such as the ASME Boiler and Pressure Vessel CodeIt also covers vessels that have been constructed without a construction code or to a code that has not been recognized. Furthermore, it covers vessels which were constructed to a code but have since lost their nameplate or stamping. Finally, it can be used to cover pressure vessels in other industries at the user’s discretion and as acceptable per jurisdictional rules. Absent from the list of covered vessels are those that have been officially retired from service and abandoned and those that are specifically excluded per section 1.2.2.

Internal, external, and on-stream pressure vessel inspections are covered under API 510. Minimum requirements for implementing risk-based inspection as an alternate to conventional inspection planning criteria are also provided. API RP 572 supplements API 510 to provide logic and best practices to assist practitioners in the “how to” inspect pressure vessels.

Updated editions of API codes, standards, and recommended practices are typically released every five years, and are often referenced by equipment manufacturers and operators, governmental agencies, and insurance carriers in company policies and regulations.

 

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