Metal pipe expansion joint BM-SI

roundflangeaxial

This metal expansion joint consists of a single bellows with flanges. It can absorb movements in any direction: axial, angular, and lateral. It is mainly used to absorb axial elongations in the longitudinal direction of straight-pipe systems, although depending upon its design, it can also absorb small amounts of lateral and angular movement. This is the simplest type, but it requires that the pipe be controlled (anchored and guided), so that the expected movements are directed in the appropriate direction for proper functioning. Characteristics and Properties The most economical expansion joint Does not retain the force of the pressure Absorbs axial, lateral, and angular movements Must be properly anchored and guided. Does not resist the force of the pressure, and must be supported by fixed anchoring that is properly designed. Otherwise, the joint may become overextended, with disastrous consequences.