API RP 1183 : 2020

Assessment and Management of Pipeline Dents

Standard Details

Includes ERRATA 1, JANUARY 2021 and ADDENDUM 1, MAY 2024

This recommended practice (RP) is applicable to any pipeline system used to transport hazardous liquid or natural gas. This RP includes detailedtechnical discussion on dent formation, strain and fatigue, and failuremodes and mechanisms. These details are provided to give pipeline operators the information and knowledge necessary to make informed integrity management decisions regarding the management of dents on their systems. This RP describes preventive and mitigative measures that pipeline operators can apply to manage dents after detection. The inservice response of dents to a range of loading conditions is discussed in detail.