The length of a single convolution of a bellows, measured either from root to root or crest to crest. This length can be calculated by, Pitch = Bellows convoluted length / Number of convolutions
Expansion Joint Accessories
An expansion joint by itself provides accommodates any axial, longitudinal and angular movements in a pipelines, ducts and vessels. The addition of accessories to an expansion joint increases the complexity but also it’s capabilities. Some of the accessories for the expansion joints include.