Fabric Expansion Joint

Fabric Expansion Joint

Fabric expansion joints allow industrial ducting systems and fan/blower connections to absorb thermal growth. Also, they isolate vibration and noise and allow for misalignments. Fabric joints are a type of pipe expansion joint.

Furthermore, you can use fabric joints in various industries, including power, petrochemical, pulp & paper, and other industrial facilities. A variety of styles and materials are available to meet the specific requirements of any given application.

Fabric joints are very flexible, and we make them from fabrics. Additionally, they protect against abrasion. Also, they are suitable for a piping system that moves in multiple directions.

Fabric duct joints can be custom-made and are easy to transport and install. You can use them when there is low pressure and dry media. Often fabric expansion joints can be used with ducting expansion joints. In addition, bellmouth reducers with fabric joints are part of a ducting system.


  • Standard profiles include U-type, flat belt type, square, rectangular, and round.
  • They have excellent corrosion and chemical resistance.
  • Baffles protect the inner surface from particulates in the gas stream.
  • We provide retaining rings from carbon or stainless steel.


  • Stress relief for piping and ducting systems.
  • They absorb thermal growth and shock.
  • They isolate mechanical vibration.
  • Simple retrofit into an existing ducting system.
  • Cost-effective solution to compensate for movement in ducting systems.

Fabric duct expansion joints are in ducts that carry hot gases at low pressures. The primary design parameters are the temperatures and flow rates of the gases and the amount and abrasiveness of solids suspended in the gases.

Layers of different fabric insulation can be combined to accommodate the temperatures and pressure in the system. You may need to replace the fabric belt periodically. They are incredibly flexible and can be made from various unique woven fabrics coated or laminated with selected elastomers or fluoropolymers.

Fabric expansion joints insulate, avoid mechanical loads, and protect against abrasion. They offer advantages for the piping designer as they can absorb movements simultaneously in several directions. Further, they have almost no reactive forces and require little space. Fabric joints are easy to customize. Therefore, it can suit existing operating conditions. Furthermore, they are easy to transport and install.

The fabric joints offer almost unlimited flexibility compared to metal expansion joints, giving the pipework designer more options. In addition, these joints operate in systems with low pressure and dry media.

Fabric expansion joints allow industrial ducting systems and fan/blower connections to absorb thermal growth, isolate vibration and noise, and allow for misalignments. In addition, their large movements in each space, small spring rates, and extensive temperature range give them advantages not available with other types of joints. As a result, they help in various industries, including power, petrochemical, pulp & paper, and numerous other industrial facilities.

Fabric Joints

Fabric joints use fabric materials for expansion. They are commonly used in low-pressure pipelines to compensate for misalignment, vibration, and thermal expansion.

We provide fabric joints out of composite fabric with built-in insulation or separate insulation pads, which can withstand temperatures above 1000°F. In addition, fabric expansion joints can compensate for thermal expansion. Also, you can use them for the misalignment of pipes without the spring load associated with other joints.

Also, you can use fabric joints for more excellent lateral motion or twisting. Finally, you can add components to the fabric expansion joints depending on the application and service.

Fabric Pipe Expansion Joints

Fabric expansion joints in ducts carry hot gases at low pressures. Therefore, those gases’ temperature and flow rates will determine the primary design parameters.

The amount and abrasiveness of the solids suspended in those gases also decide to manufacture your pipe expansion joint.

A fabric pipe expansion joint comprises layers of different fabric insulation that we can combine to accommodate each specific need. Depending on the pressure and temperature in the application using the pipe expansion joint, that application or desired result will determine the type of construction and makeup of that expansion joint.

When it comes to industrial duct systems, thermal growth is one of the worst things. To explain, industrial duct systems that carry hot gases or air through them for extended periods can eventually begin to expand and warp.

Warping can be a severe problem if it’s not dealt with properly. It can lead to significantly increased wear-and-tear on your industrial duct system, or worse, and it can even cause severe damage, requiring you to repair or replace the ducts entirely.

If you want to avoid all of the problems from thermal growth, then we strongly suggest you install fabric expansion joints in all of your industrial duct systems. We guarantee you will not regret it!

What Are Fabric Expansion Joints?

To connect multiple pieces of industrial ducting, we use expansion joints. The problem with expansion joints is that if they are too rigid and stiff, with very little flexibility, they may begin to break when thermal expansion occurs, and the ducts begin to move around. With the help of fabric expansion joints, you can easily avoid this problem.

They can use a loose fabric connection rather than a rigid metal. Thus, it makes fabric duct joints flexible enough to easily absorb any movement caused by thermal expansion in the ducts. As a result, your ducts will be able to expand and warp without this, leading to severe damage to the duct system as a whole.

If that’s not enough to convince you, fabric expansion joints can also help reduce the noise created by the duct system. By absorbing and isolating the vibrations and movement of the ducts, fabric joints can help make your ducts quieter and less distracting overall.

What are the Features of Fabric Expansion Joints?

They come in various shape profiles (including U-type, flat belt type, square, rectangular, and round).

Also, they feature extensive customization options regarding materials and features.
For example, fabric expansion joints can be easily installed into any industrial duct system, regardless of its shape and size!
They are easily installable, but they are also affordable and easy to transport and store.
Therefore, it makes industrial fabric joints intelligent and cost-effective in dealing with severe problems.


  • Optimized flexibility and highest possible mobility with a low construction height [pipeline gap]
  • Resetting/adjustment forces move towards the zero points or are negligibly small in calculations.
  • Many possible material combinations allow optimized and customized adjustment to prevailing operating conditions.
  • The manufacturing of large size expansion joints is inexpensive
  • Material folding ensures lower transporting costs for large sizes
  • The customer’s personnel can often carry out easy installation


  • Power plants.
  • Waste incineration plants.
  • Dust removal.
  • Filter systems.
  • Cement industry.
  • Steel industry.
  • Drying technology.
  • Chemical industry.
  • Conveyor technology.
  • Fan construction.
  • Ventilation technology.
  • Marine engineering.


Carrier Fabric
  • Polyester.
  • Aramid.
  • Glass Fiber.
  • Silicate Fibers.
Insulation Material
  • Glass Fiber.
  • Silicate Fibers.
  • Ceramic Fibers.
 Sealing Foils
  • Elastomers.
  • PTFE.
  • Stainless Steel.
  • Include Neoprene.
  • EPDM.
  • Hypalon.
  • Silicon.
  • Viton.
  • PTFE.
In Conclusion

Fabric expansion joints, whether it be ventilation, petroleum, power, or any number of others, fabric joints are the solution. Please get in touch with us for a quote.