Hinged Type


· Angular motion in one plane
· Withstand pressure thrust load
· Prevents torsion on bellows
· Low forces on piping system


A hinged expansion joint contains one bellows and is designed to permit angular rotation in one plane only by the use of a pair of pins through hinge plates attached to the expansion joint ends.

The hinges and hinge pins must be designed to retrain the thrust of the expansion joint due to internal pressure and extraneous forces, where applicable. Hinged expansion joints should be used in sets of two or three to function properly.