Rubber Expansion Joints are made up of Neoprene, EPDM, Silicone, Viton and also in Natural Rubber etc, Ami's   Rubber Expansion Bellows are reinforced with specially treated Nylon, Rayon, Glass Fiber, Fiber, Steel Cord etc, by taking care of the designing for perfect balance between movements of Axial, Radial, Torsion and Angular and pressure bearing capacity. Ami's Rubber Expansion Bellows   are available in sizes ranging from 1" NB to 72" NB with hydro testing upto 24-bar pressure. These bellows are either integrated (metallic flanges are bonded with rubber) or split back-up flanges, and are made strictly as per the customer's design, drawing and specification.