Fabric expansion joints

Fabric expansion joints can consist of different soft materials such as tissue, PTFE, EPDM or Hypalon® and are used e.g. in fan and ventilation technology, in the power plant/DeNOx/REA/boiler fields, in waste incineration plant, in the cement industry or in dust extraction and filtration plant.

Rechteckiger HKS-Gewebekompensator

Fabric expansion joint parameters

Bellows materials

  • Insulating material: Glass fabric, ceramic, silicate
  • Sealing foil: Elastomers, PTFE, high-alloyed steel
  • Backing fabric: Polyester, Aramid, Glass fabric, Silicate
  • Coating: Neoprene, EPDM, CSM, Silicon, PTFE

Connection parts

  • Flanges
  • Clips
  • Compression joints


  • Air
  • Exhaust gases

Nominal widths

  • circular shape from DN20 to DN5000
  • ovals, rectangles or special shapes in any size
Operating temperature up to 800°C
Operating pressure up to 1000 mbar

Construction shapes

  • circular
  • oval
  • rectangular
  • Special shapes


  • open or closed
  • with or without insulation
  • complete with steel construction

Movement absorption

  • axial
  • lateral
  • angular
  • Combinations thereof