Skip to main content
API INFORMATION ON MECHANICAL INTEGRITY (MI)
  1. Home
  2. Equipment
  3. Pressure Relief Devices
  4. Std. 520, Part I

Standard 520, Part I

Sizing, Selection, and Installation of Pressure-Relieving Devices— Part I— Sizing and Selection

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 standard are intended to protect unfired pressure vessels and related equipment against overpressure from operating and fire contingencies.

9th Edition | July 2014

Companion document to Std. 520, Part 2, Std. 521, and RP 576. 

Purchase the document through the API Publications Store.