The is an organization of established manufacturers of metal bellows-type expansion joints. Founded in 1955, its core mission was, and still is, to "establish and maintain quality design and manufacturing standards." The association is driven by its Technical Committee, a group of experts who combine their collective knowledge and ongoing research to continuously improve the standards. EJMA's primary goals are to:
Key developments in the 11th Edition include: Ejma Standard.pdf
The bellows themselves are useless without proper end connections. This section outlines design rules for welded, flanged, or threaded ends, ensuring that the attachment does not induce harmful stresses into the bellows. The is an organization of established manufacturers of