Non Metallic Bellows are flexible components made from synthetic materials such as rubber, fabric, canvas, polyurethane, and other polymers, used primarily for accommodating movement, vibration absorption, and sealing in various industrial applications. They typically handle lower temperature and pressure ranges compared to metal bellows but offer advantages like high flexibility, resistance to corrosion, abrasion, and chemicals, and are commonly used in HVAC systems, piping, exhaust systems, and material handling.