Expansion Bellows Manufacturer Rubber Bellow is a flexible connector designed to relief the stress for piping systems by absorbing movements like compression / extension / angular / torsional / axial / lateral etc., shock, isolating vibration and allowing for misalignment of adjoining ducting or equipment. It’s made of Metal / Rubber flanges and different types of Rubbers fitted between both side flanges which is the main part of Rubber Expansion Joint