Exhaust bellows or flexible pipe spools are used in the connection line between engine and exhaust gas system. Metal bellows are mostly configured as easy decoupling elements.

Exhaust bellows could be finished with internal interlock mechanism or braiding which operate like inner sleeve in order to regulate gas flow and reduce the pressure drop.

Their high flexibility makes exhaust bellows easy to assemble, they absorb movements and vibration, and at the same time they are pressure resistant and fluid tight. Exhaust bellows have a very large variety of fittings which is suitable for large number of applications.