A hinged expansion joint is designed to permit angular rotation in only one plane by using a pair of pins through hinge plates attached to each end of the expansion joint. Hinge hardware and pins are designed to restrain pressure thrust of the bellows and any extraneous forces...
These types of Joints are used for absorbing expansion in the Pipe Line caused by heat. It also absorbs all axial movements & vibrations caused by pumps & other equipments. As per pressure rating, the thickness can be varied as per customer...