Expansion joint's purpose, design, and how metal bellows function
Introduction to Badger Industries
Badger designed and manufactured our first metal bellows and metal bellows expansion joint in 1916. Since that time, metal bellows and metal bellows expansion joint design has improved, and the number of industrial applications grown significantly. Badger is pleased to provide insight into metal bellow’s purpose, design, and how metal bellows function. The data presented in this handbook is consistent with the Standards of the Expansion Joint Manufacturers Association (EJMA), of which Badger is a founding member.
Metal Bellows are used to absorb thermal movements of pressure vessels, piping, and ducting systems while retaining system design pressure at system design temperature. Regardless of the manufacturer and manufacturing method, the metal bellows terminology is consistent.