Expansion bellows

Expansion joints are an important part in each exhaust pipe. The convoluted section of the expansion joint is designed to accommodate the movements due to thermal expansion in the piping system. It also prevents the propagation of vibrations.

Consequently the expansion joints have to be as flexible as possible. This flexibility is acquired by the use of very thin material as well as by making the bellows as high as possible. All the expansion joints which TIO has in her delivery program are therefore built out of several courses of stainless steel, which makes a large accommodation of the movements at a minimum axial and lateral load possible. The multiply stainless steel bellows are hydraulic forced. This production method guarantees high flexibility and a durable performance.

TIO multiply stainless steel expansion joints can be executed with or without an inner tube. De advantages of an expansion joint with an inner tube are a durable performance and less back pressure. The disadvantage on the contrary is the limitation of the lateral movement. This disadvantage is such, that it is better to choose for an expansion joint without an inner tube. The back pressure in negligible and due to the multiple construction the service life is nearly the same.

In the datasheets you can find sizes and maximal accommodations of our expansion joints.