October 6, 2025

MACOGA Announces Release of EJMA Standards 11th Edition

MACOGA Announces Release of EJMA Standards 11th Edition

A new edition of the EJMA Standards has just been published. This is Version 11 of the EJMA Standards, recognized throughout the world as the authority on the proper selection and application of metallic bellows type expansion joints for safe and reliable piping and vessel installation.

The EJMA Standards Version 11 are not available in book format and can only be consulted online by those users who have subscribed through the EJMA website. Only verified Subscribers will have access to the latest revision and any ongoing developments to the Standards by its Members in real-time. No one else will have access to this information.

Benefits of Subscribing to the EJMA Standards:

To obtain 24-hour access to the latest edition of the EJMA Standards please visit standards.ejma.org. There you can register your company and purchase access for you and other members of your organization. This will give each of your users full access to the latest Standards, documentation and future planned calculation tools. In addition, you will receive license to a unique subscriber badge featuring your company name that you may use on your website to demonstrate that you are a current subscriber to the very latest edition of the EJMA Standards. By clicking on this badge, you, your customers and any other parties will be able to verify via the EJMA website that you are a current subscriber to the world’s leading design and manufacturing standard for metallic bellows type expansion joints. Only current subscribers will have this benefit.

Only the latest electronic version of the Standards will be updated in real-time as and when changes, revisions and developments are made. No one else will have access to this information.

Changes to Version 11 of EJMA

Changes in EJMA Standards Version 11 include developments to numerous equations relating to multiple plies, pressure calculations, membrane stresses and temperature effects, latest best-practice standards to the manufacture of various bellows arrangements, updated tolerances, corrections and harmonization to latest ASME codes.

A new edition of the EJMA Standards has just been published. This is Version 11 of the EJMA Standards, recognized throughout the world as the authority on the proper selection and application of metallic bellows type expansion joints for safe and reliable piping and vessel installation.


Learn more about EJMA Standard Subscription process
https://www.ejma.org/ejma-standards/