Rubber Expansion Joints

Rubber expansion joints

We have a wide range of rubber expansion joints with up to 20 different types in 8 different rubber qualities to suit all purposes. So, at WILLBARNDT you can always find a quality solution.
Different tasks demand different solutions, therefore, we offer rubber expansion joints with diffrent accessories.

Our expansion joints are handmade at WILLBRANDT in Germany where they are specialist in production and development of expansion joints. All our expansion joints are quality tested before they are released.
We have a large stock of expansion joints in Hamburg, which enable us to deliver against a very short delivery time.

Examples of our highrunners

Type 49
expansion joint type 49
  • DN 32-DN500
  • Small building length (100 – 110 mm)
  • High corrugation bellow
  • Low internal resistance
  • 98% reducing of structure-borne noise
  • Threaded holes
  • Max. 25 bar

Often used in the construction industry.

Type 51
  • Building length (130-250mm)
  • Low corrugation bellow
  • Low flow resistance
  • High movement absorption in all directions
  • 70% reducing of incoming energy
  • 4 different types of rubber combinations are available
  • Max. 25 bar

Often used in building industry, water and wastewater technology, engine construction and shipbuilding.

Type 50 and 55
expansion joints type 50-55
  • Building length (130-300 mm)
  • Low corrugation bellow, highly elastic rubber expansion joint
  • Low flow resistance
  • High movement absorption in all directions
  • 70% reducing of incoming energy
  • A lot of different types of rubber available
  • Max. 16 bar

Often used in building industry, water and wastewater technology, engine construction and shipbuilding.

Example of custom-made expansion joints

Type 40
Expansion joint type 40
  • DN200 – DN5000
  • High corrugation bellow
  • Low internal resistance
  • High movement absorption in all directions
  • Handmade
  • Working pressure and temperature depend on customer specifications

Often used in large industrial plants and power plants.

Maintenance

For all expansion joints

  • First inspection after
    1 week
  • 1st, 4th, 12th month
  • Annual Inspection

All inspection should include

  • Check position
  • External damage
  • Check for blistering
  • Check for cracks
  • Check hardening

Design parameters

  • Diameter (DN)
  • Built in length
  • Working pressure
  • Vacuum
  • Medium (inside/outside surroundings)
  • Working temperature
  • Movements
  • Flow velocity

Movements

Design parameters - expansion joints

Not in combination

Accessories

Vacuum supporting rings

Vacuum supporting rings for expansion joints

Support rings are used for vacuum operation.

Inner sleeves

Expansion joints

Support rings are used for operation in vacuum.

Spacer ring

spacer ring

Inner sleeves are used with high flowrate, which generate turbulence in the media, as turbulence causes unnecessary wear of the bellow.

Get the best solution

You are welcome to contact us if you have questions or special requests. We are happy to help with recommendations to find the best solution. Through our network of producers and developers we can always ensure competent advice and high-level service to our customers.

Contact

Lasse Petersen
Area Manager – Denmark
+45 2236 7051
lpe@willbrandt.dk

Contact

Anne-Marie Zimmermann
Account Manager
+45 27 57 56 87
amz@willbrandt.dk

Contact

Maiken Stietz
Product Manager
+45 29 17 45 19
mst@willbrandt.dk

Contact

Richard Kling
Area Manager
+46 763 90 08 75
rkl@willbrandt.se

Contact

John C.M. Jensen
Technical Manager – B.Sc.
 +45 20 15 56 87
 jje@willbrandt.dk

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