Two single bellows connected with common pipe connector become Universal Bellow Expansion Joint. Such Bellow Expansion is designed to absorb lateral movement along with axial movement and angular movement.
Lateral compensation is likewise associated with a redirection of flow by 90° within single-plane or multi-plane piping systems. Usually, lateral expansion joints are installed in existing right-angle redirections in the system. The movement of a lateral expansion joint always consists of the desired lateral movement and a slight unavoidable axial movement that comes from the expansion joint itself.
Simple lateral expansion joints for lateral movements in one plane only permit a far larger expansion absorption than axial expansion joints. Lateral expansion joints that are movable in all planes simultaneously absorb expansion from two pipe sections in different directions.
The following basic rules apply to lateral compensation:
The compensation type that is selected depends on which method is the most cost-effective and which provides the best solution for the function that needs to be fulfilled. An economic consideration should not merely take into account the cost of the expansion joints themselves, but should also include the required anchors, pipe supports and shaft structures.