Metal expansion joints

Metal expansion joints (steel expansion joints) are single or multi-walled expansion joints. They are manufactured from metal and are finished as bellows or lens expansion joints. Their bellows consist of one or several corrugations.

Advantages of metal expansion joints

  • Higher pressure range: up to PN 100
  • Higher temperature range: up to 1000 °C
  • Besides fluids and gases, also suitable for abrasive media and solids
  • Flexible connection types possible
  • Flexible extension possibilities

Disadvantages of metal expansion joints

  • Restricted suitability with many acids
  • Only partly suitable for oscillations
  • Relatively large construction lengths (e. g. with lateral expansion joints)
  • Particularly at high pressures, construction with high spring rates is required