ASME Code Transition from VIII to XIII for ZOOK Rupture Disks

Since Jan 1st, 2022, the applicable ASME code section for rupture disks is Section XIII (previously VIII). All qualifying ZOOK products continue to meet code requirements and are certified to the new section. 

The Boiler & Pressure Vessel Code (BPVC) is an American Society of Mechanical Engineers (ASME) standard that regulates the design and construction of boilers and pressure vessels.

The 2021 Edition of ASME BPVC includes General Changes to Sections I, IV, VIII (Divisions 1, 2 and 3), X and XII. These changes were issued on July 1, 2021, and are mandatory as of January 1st, 2022.

Included in these changes is the adoption of a new section – Section XIII, Rules for Overpressure Protection – which consolidates and standardizes the pressure relief device requirements for all ASME BPVC Sections.1 Products that are included in this category include all pressurized equipment such as boilers, pressure vessels, rupture disks, pressure relief valves and piping systems.

A summary of the BPVC-2021 changes as it relates to Section XIII includes:

  • Revisions to Sections VIII (Divisions 1, 2 and 3) have been issued concurrent with the publication of Section XIII. These include the transfer of pressure relief device requirements, from each of the aforementioned Sections to Section XIII.
  • The remaining overpressure protection requirements have been restructured; cross-references updated; and new Appendices added to list the new locations for all those requirements, formerly located in each of the Sections.

As a global leader in the manufacturing of pressure relief devices and to ensure quality and safety, ZOOK is reviewed and verified to the new Section XIII.

All existing ZOOK product certifications remain in place, while any products requiring ASME certification manufactured after January 1, 2022, will automatically be certified to Section XIII.

For more information, please contact us at .


  1. Summary of Significant Changes in the 2021 ASME Boiler and Pressure Vessel Code (2021st ed.). (2021). The American Society of Engineers.



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