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Expansion joints

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Here you will find an overview of our standard and special product range for axial expansion joints, universal expansion joints, lateral expansion joints and angular expansion joints.

Do you need a special design? Please get in touch with us.

Axial Expansion Joints Image Text
HYDRA® Axial Expansion Joints

Axial expansion joints for the absorption of axial movements, i.e. movements along the expansion joint.

  • axial movement absorption of up to approx. 200 mm possible
  • low absorption of lateral and angular movements possible
  • unanchored: movement on all sides possible. High axial forces in conjunction with high pressure
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Universal expansion joints
HYDRA® Universal Expansion Joints

Universal expansion joints comprise two metal bellows interconnected by a central tube.

  • absorption of axial, lateral and angular movements possible
  • unanchored: movement on all sides possible. High axial forces in conjunction with high pressure
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Lateral expansion joints
HYDRA® Lateral Expansion Joints

Lateral expansion joints are suitable for the absorption of lateral movements, i.e. transversely to the pipe axis of the expansion joint.

  • absorption of lateral movement
  • one-way flexibility with single pivot bolt bracing
  • universal flexibility with cardan joint bracing
  • bracing for absorbing the axial compressive forces (no axial movement possible)
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Angular expansion joints
HYDRA® Angular Expansion Joints

Angular expansion joints absorb movements in the form of angular movements.

  • absorption of angular movements
  • one-way flexibility with single pivot bolt bracing
  • mobility in all directions with tie rod bracing or cardan joint bracing
  • bracing for absorbing axial compressive forces (no axial movement possible)
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Domestic Engineering Expansion Joints Image Text
HYDRA® Domestic Engineering Expansion Joints

Standard designs of axial expansion joints for steel, stainless steel and copper pipes in building utilities. The optimal product range for all applications in water and heating circuits and gas installation.

  • nominal diameters ranging from DN 15 to DN 250
  • provided with screw connections, threaded sockets, threaded nipples, flanges or welding ends
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Other questions

There is nothing like direct contact. We will gladly take the time for a personal discussion and answer your questions individually.
Please send us your inquiry using our contact form and we will then contact you immediately.

Next steps

Configure product

Configure products for your individual needs quickly and easily with our FLEXPERTE tool.

Details:

  • Designing of Standard Products
  • Preparation of Technical Data Sheets
  • Preparation of Enquiries

Download: FLEXPERTE customer version

FLEXPERTE: The design programme for the entire product range of the Witzenmann Group with a function-specific classification

  • Flexible metal tubes
  • Expansion joints
  • Metal bellows
  • Bearings, hangers, supports

Apart from the calculation formulas, drawing data as well as entire 3D CAD drawings are stored. Provided with PDS and PDMS interfaces, the program can be used multifacetedly and universally.