Hinged Expansion Joints by Flexpert Bellows Pvt. Ltd are used to absorb angular movement when it occurs only in one plane. These hinges are designed to absorb full pressure thrust of the expansion joint. Since the pressure thrust is absorbed by the joint hinges, only minimal guiding and intermediate anchors are required at each end of the piping system. Angular expansion joints are used in sets of two or three at a change in pipe direction.