Lateral expansion joints The lateral expansion joints consist of two bellows. They are designed to compensate lateral deflection and vibration of piping systems, which occur at right angles to the pipe axis, misalignments during installation and level displacements (relative motions of tanks etc.) During installation, it is important only one expansion joint to be positioned between two anchor points. No pipe weight must rest upon the expansion joint which must be properly guided in a defined linear direction, by pipe guides installed adjacent to the expansion joint. Type LFS Description: Expansion joint with two bellows, welded on flanges and tie-rods. Technical characteristics (dimensions in mm): The nominal diameter range is DN40-DN1700. The working pressure range varies between 2bar & 40bar. The axial movement varies between +/-10 & +/-70. The lateral movement varies, with minimum value +/-18. Type LW Description: Expansion joint with two bellows, weld ends, and tie-rods. Technical characteristics: According to the technical characteristics of Type LFS.