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Cardan Joint Earthquake Compensator

Cardan Joint Earthquake Compensator; Dilatation&Earthquake Expansion Joint Dilatation and earthquake expansion joints are elements that ensure safe operation of piping systems against angular, axial or lateral movements. Especially in ground events such as earthquakes, a significant stress accumulation occurs on the piping systems. This stress accumulation may prevent the system from working completely or may cause deformation and cause restricted operation of the piping system. In addition to ground events such as earthquakes, angular, axial or lateral movements may occur in line with the reasons arising from the system’s own mobility. While the movements originating from the system have mostly lateral effects, the disturbances caused by the earthquake can occur in three different ways. In such cases, earthquake compensators should be used to ensure the safety of the piping system.

What is Dilatation&Earthquake Expansion Joint and What Does it do?

Dilatation and earthquake expansion joint is the most commonly preferred anti-axis anti-slip element, especially in fire extinguishing systems. The most basic feature that distinguishes these compensators from other types of compensators is that they provide system security against bending movements that occur in 3 different ways.

The main reason for this situation is that it cannot predict the effects of ground events such as earthquakes on the system. Therefore, compensators that promise protection in more than one axis should be preferred in order to protect the piping systems against the negativities caused by ground events such as earthquakes. Especially for piping installations used in earthquake zones, such compensators are of vital importance.

What is Cardan Joint Earthquake Compensator?

Dilatation and earthquake expansion joint protects the piping installations against ground movements such as earthquake or ground collapse. It provides system safety by absorbing movement and is a type of compensator that is resistant to 3 different axis shifts. Dilatation and earthquake expansion joint absorb all kinds of lateral, axial and angular movements.

Thus, it can completely protect the system against seismic problems. Dilatation and earthquake expansion joints are not produced according to a standard material type. Although it is mostly made of carbon steel, it can also be manufactured from stainless steel upon request. At the same time, you should have details about the piping installation and the region where it will be installed during the production process.

What Does Dilatation&Earthquake Expansion Joint Do?

When choosing a dilatation and earthquake expansion joint, details such as the amount and quality of the liquid in the piping line, the connection types, the level of possible movements, and the usage area should be considered. The most basic function of universal dilatation and earthquake expansion joint is to absorb lateral, axial and angular movements.

Compensators, which have the ability to absorb movement in three different ways, prevent situations such as breakage or deformation that may occur in the piping installation. In particular, negativities such as breakage experienced as a result of seismic activities can cause very serious damages in all piping systems, especially in fire installations.

Where is the Dilatation&Earthquake Expansion Joint Used?

The dilatation and earthquake expansion joint can be used to protect piping systems in areas with high earthquake risk or in areas where seismic activity is intense. Although it has an extremely wide usage area, it is indispensable especially for fire extinguishing systems. Cardan jointed earthquake compensators are needed to ensure the safety of the system and to ensure that it works safely.

When choosing a dilatation and earthquake expansion joint, the manufacturer should be contacted. Information should be given about the structural features of the installation and the material from which the compensator is manufactured should be preferred. At the same time, universal joint expansion joints, which can be produced in different sizes and diameters, may not be suitable for every piping installation.

For the selection of expansion joints larger than Ø250 mm, please contact our technical service.
Standard connection material is st37 carbon steel. Optionally, it can be manufactured according to AISI304, AISI316 stainless steel or other requested materials.


  • Corrugation Material:AISI304, 316, 316L, 321, 309, 310
  • Flange Material:st37-2, AISI304, 316
  • Pipe Material:st37-2, AISI304, 316
  • Limit-Rod Material:st37-2, AISI304, 316