The (published by the Expansion Joint Manufacturers Association) is the global authority for the design, selection, and application of metallic bellows expansion joints . Since its inception in 1955, these standards have evolved to incorporate decades of engineering research and manufacturing expertise, ensuring safety in piping and vessel installations. Core Purpose and Scope
Established in 1955, the Expansion Joint Manufacturers Association (EJMA) provides the global standard for designing and installing metallic bellows to ensure safety in piping systems. The standards have evolved from addressing basic axial movement to incorporating complex, modern formulas for cycle life and creep fatigue, with the 11th edition serving as the current, primarily digital authority. Learn more about the standards at EJMA . Expansion Joint Manufacturers Association – Shop EJMA Ejma Standard.pdf
The EJMA Standard PDF is a valuable resource for: The standards have evolved from addressing basic axial
If you are designing a piping system for a refinery, a power plant, an LNG facility, or an HVAC system, the EJMA Standard provides the mathematical formulas, safety factors, and design rules to ensure that your expansion joint will operate reliably for its intended life. a power plant