Various materials are designed and constructed in accordance with the installation location and conditions, and are highly flexible and have very little limitations in shaps. A flexible connected medium that absorbs all movement caused by temperature changes and provides stability to the piping system. Non Metallic Expansion Joint should be designes to be well abapted to a veriety of expansion capacities and temperature changes from time to time, so that designers can reflect various ducts and pipe lines in design to protect the equiment from shrinkage, expansion, vibration, internal and external pressures, and to protect the entire factory's industrial facilities. Manufactured from a wide range of non metallic materials, including synthetic rubber, fiber, insulation, and fluoride, depending on the design conditions.