WRC 547:2014

$77.35

Fitness-For-Service Evaluation Procedures for Operating Pressure Vessels, Tanks, and Piping in Refinery and Chemical Service

Published By	Publication Date	Number of Pages
WRC	2014	324

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Category: WRC

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Description

This report contains a proposed fitness-for-service procedure that is applicable to pressure vessels, piping, and storage tanks in refinery and chemical service. The methodology includes consideration of the following:

Determination of the cause of the flaw(s)
Methodology of inspection and inspection planning.
Assessment of crack -like flaws
Non-growing cracks
Time-dependent crack growth
Assessment of volumetric flaws
Locally thinned areas
Blend-ground areas
Blisters

Seven appendices at the end of the report provide background information on the recommended procedures, as well as reference material on fracture toughness, stress intensity factors, limit load solutions, environmental cracking mechanisms, and nondestructive evaluation.

Lastly, several recommendations on areas of future study, which are aimed at improving the existing fitness-for-service methodology are provided.

The procedures and equations in this document are consistent with Version 2.1 of the PREFIS software.

Additional information