High-temp Composite Expansion Joints

When you are building a system that will be continually running between 400 and 1200 degrees Fahrenheit, Advanced Flexible Systems, Inc. will create expansion joints with our high temperature composites. We design our high temp joints with various layers of thermal insulation, offset by vapor barriers, to create a product designed to withstand the high temperatures and accompanying levels of pressure. We also provide expansion joint covers to maintain the integrity of the composite rubber joints from any external elements.

Typical Movements – Fluid Sealing Association Handbook – Table D-B

TypeActive LengthAxial CompressionAxial ExtensionLaterial Movement
Single Layer6″ (150mm)2″ (50mm)1/2″ (13mm)+/-1″(25mm)
Elastomer9″ (230mm)3″ (75mm)1/2″ (13mm)+/-11/2″(38mm)
Flexible12″ (305mm)4″ (100mm)1″(25mm)+/-2″(50mm)
Element16″ (405mm)5″ (125mm)1″(25mm)+/-2 1/2″ (63mm)

Advanced Flecible Systems,Inc. Offers non-standard widths (active lenghths) and Movement capabilities as required by the client.

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High-Temp Composite Expansion Joints for Industrial Applications

Industrial applications need robust gear and equipment that can operate in harsh environments and high temperatures. The expansion joint is one such element that is essential to preserving the operation of such machinery. These joints are made to absorb heat expansion and contraction as well as mechanical movement and vibration, which lowers stress and keeps the machinery from being damaged.

Due to their greater thermal resistance and longevity, high-temperature expansion bellows joints are the favored option in industrial applications involving high temperatures. These joints are constructed from high-temperature composite materials, which can resist temperatures of up to 2200°F, making them appropriate for use in processes including power generation, chemical processing, and metal refining.

Benefits of High-Temperature Composite Expansion Joints

The advantages of high-temperature expansion bellow joints over conventional metal and fabric expansion joints are numerous. Among these advantages are:

  1. Thermal Resistance:

These joints were made using high-temperature composite materials, which can endure extremely high temperatures, making them perfect for use in high-temperature industrial applications.

  1. Corrosion Resistance:

The composite materials employed in these joints have a high level of resistance to corrosive and chemical assault, providing a long lifespan and requiring little maintenance.

  1. Flexibility:

High-temperature expansion bellows joints’ flexibility enabling them to absorb mechanical movement and vibration as well as thermal expansion and contraction without placing undue strain on the equipment.

  1. Reduced Downtime:

High-temperature expansion bellows joints assist to reduce downtime and maintenance expenses by lowering stress and preventing damage to the machinery.

  1. Cost-Effective:

High-temperature composite expansion joints may initially cost more than conventional metal or fabric joints, but over time, they are more affordable due to their extended lifespan and low maintenance needs.


Industrial bellows and high-temperature composite expansion joints are crucial parts of high-temperature industrial applications. They are the perfect choice for machinery and equipment that operates in harsh environments because of their exceptional temperature resistance, corrosion resistance, flexibility, and cost efficiency. Industrial bellows made to order may also be modified to fit particular needs, assuring the best performance and lifespan.