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About This Item

 

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This recommended practice applies to the sizing and selection of pressure relief devices used in refineries and related industries for equipment that has a maximum allowable working pressure of 15 psig [103 kPag] or greater. The pressure relief devices covered in this recommended practice are intended to protect unfired pressure vessels and related equipment against overpressure from operating and fire contingencies.
 

Document History

  1. API Std 520, Part 1


    Sizing, Selection, and Installation of Pressure-relieving Devices Part I - Sizing and Selection, Tenth Edition, Includes Errata 1 (2023)

    • Most Recent
  2. API Std 520, Part 1


    Sizing, Selection, and Installation of Pressure-relieving Devices, Part I - Sizing and Selection, Ninth Edition

    • Historical Version
  3. API Std 520


    Sizing, Selection, and Installation of Pressure-relieving Devices in Refineries, Part I - Sizing and Selection, Eighth Edition

    • Historical Version
  4. API RP 520

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    Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries: Part I - Sizing and Selection

    • Historical Version
  5. API 520-1-1993


    Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries: Part I - Sizing and Selection

    • Historical Version