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Fabric Expansion Joints and Metallic and Rubber Bellows

With the manufacture of its first expansion joint for a thermal power plant in 1955, FERLAM COMPENSATEURS was a pioneer in the flexible joint industry. Since then, we have successfully delivered compensators to industries all over the world.


85 rue Monge,
59100 Roubaix,
Fax Number

With the manufacture of its first expansion joint for a thermal power plant in 1955, FERLAM COMPENSATEURS was a pioneer in the flexible joint industry. Since then, we have successfully delivered compensators to industries all over the world.

Fabric expansion joints

Fabric expansion joints are flexible connectors designed to provide stress relief in ducting systems by absorbing movements caused by thermal changes. In addition, they enable shock absorption, noise and vibration isolation and can also compensate for the misalignment of ducting.

Fabric expansion joints can be realized with any required shape and accept movements in any direction. They are supplied jointed or open with the closing kit and closing instructions, depending on your requirements and technical constraints on-site. The composition of our single and multi-layer fabric expansion joints is determined in order to withstand high temperatures and pressures, aggressive media, large movements and vibrations.

We have a large range of technical fabrics in stock including Teflon® (PTFE), silicon, hypalon, viton, glass fabric, PVC, kevlar, silicate, as well as high-temperature insulating materials.

Gas turbine expansion joint.
PTFE fabric expansion joints assembled on steel parts.
Combined-cycle power plant.
Belt-type PTFE expansion joint.

These fabrics are designed to resist to temperatures from -56°C up to +1,200°C and abrasive media.

All our products are designed to meet international standards and are compliant with current EC safety and environmental regulations. Furthermore, all our products are made of high-quality asbestos-free materials.

Rubber expansion joints and metallic expansion bellows

Elastomer expansion joints are used to convey various media, whether they are liquid, solid or gaseous. The shape and nature of materials used for the bellows vary according to the nature of the fluid, temperature, pressure and movements.

Our metallic expansion bellows are designed to absorb axial, lateral or angular movements; or a combination of all of these. Once again, their design and the grade of carbon steel, stainless-steel or alloys used for their manufacture are selected according to the operating conditions.

We can provide flanged, welding end pipe or threaded connections according to international standards.

Flexible joint applications

Our expansion joints are installed in various industries including:

  • Cement works
  • Thermal power plants
  • Combined-cycle power plants
  • Iron and steel works
  • Aluminium producers
  • Heating and ventilation
  • Petrochemical
  • Chemical plants
  • Waste incineration
  • Sugar refineries
  • Pulp and paper industry

Whether the expansion joints are intended for new installations or for the modernisation or replacement of existing compensators, our technicians work closely with your teams in order to design the products the best adapted to your installation.

GT expansion joints

We are conscious that nowadays productivity and efficiency are of prime importance in energy production, so we designed our GT expansion joints to withstand extreme temperatures, accept large multi-directional movements and increase lifetime.

In the energy sector, our expansion joints are successfully installed on gas turbine exhausts, HRSGs, diverters, boilers and stacks.

Full-service provider of expansion joints and bellows

FERLAM COMPENSATEURS can offer services ranging from site survey to design, manufacture, supply and supervision or installation on-site of complete turnkey solutions.

We can deliver only the flexible part with insulating material or as a complete unit, where the fabric joint is mounted on the steel parts equipped with the deflector and supplied with transport spacers for ease of installation.

We offer steel parts made of various carbon steels, stainless-steels and alloys to resist high temperatures, corrosion and abrasion.

Customised solutions

Throughout the years FERLAM COMPENSATEURS has gained a worldwide recognition for the high quality of its products and services. At FERLAM COMPENSATEURS we consider each installation unique, and we offer customised solutions to ensure that our proposal will be the most efficient, reliable and cost-effective. Furthermore, our flexible organisational structure enables us to offer a close working relationship and short delivery time with the best market standards.

FERLAM COMPENSATEURS is currently extending its network of worldwide representations and we are always willing to hear from partners that would be interested in representing us in their country.

Products & services

  • Fabric Expansion Joints

    Fabric expansion joint represent some of the most important element in the resilience and longevity of your industrial installation. Fabric expansion joints are applied in ducts transporting air, fumes and gases, even if they are containing solid parts.

  • Metallic Expansion Joints

    Resistance to high pressures and low maintenance costs are the principal advantages of metal expansion joints.

85 rue Monge
59100 Roubaix