THERMAL EXPANSION BELLOWS

An expansion bellow (or expansion joint) is a device designed to absorb the thermal expansion or contraction of pipes, ducts, or vessels that carry fluids or gases. They are commonly used in various industrial applications, such as HVAC systems, piping systems, and mechanical systems, to accommodate movement caused by temperature changes, pressure fluctuations, and vibrations.

1. Material: Typically made of flexible, durable materials such as stainless steel, rubber, or braided metal.
2. Design: They consist of a bellows-like structure (similar to an accordion) that can expand or contract to absorb movement.
3. Function: The main purpose is to prevent damage to pipelines, joints, and equipment due to thermal expansion, mechanical stress, or vibration.
4. Types: There are different types of expansion bellows, including axial, lateral, and angular, depending on the direction and kind of movement they need to absorb.

• Piping systems: In power plants, chemical industries, and HVAC systems to absorb heat-induced expansion.
• Automotive: In exhaust systems to reduce vibrations and prevent cracking.
• Oil & gas: To deal with fluctuations in temperature and pressure in pipelines.