Petro Chemical and Refining
High Pressure Expansion Joint Applications
Extreme Temperature Fluctuation Solutions
EJMA is the global association of leading expansion joint manufacturers and suppliers. Our mission is to maintain quality design and manufacturing standards.
Who We Are
The Expansion Joint Manufacturers Association, Inc. is an organization of established manufacturers of metal bellows type expansion joints. We have members located across the globe. Click on the map below and learn about a member near you.
What We Do
EJMA was founded in 1955 to establish and maintain quality design and manufacturing standards. These Standards combine the knowledge and experience of the association’s Technical Committee and are available to assist users, designers, and others in the selection and application of expansion joints for safe and reliable piping and vessel installation.
Our 10th Edition!The new Tenth Edition standards combine the knowledge and experience of the leading manufacturers of expansion joints into an invaluable reference document.
Available in printed or
The EJMA Standards are 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.