NEW: angular pipe expansion joint by Spiroflex d.o.o.

The length of expansion joint in neutral position is called free length. The longest service life is achieved by exploiting the axial shift in both directions as extension (+Δax) and compression (-Δax). When it is known that movement will be in one direction, to utilize the complete all available movement we propose to install expansion joint under “prestress”. The expan...

The pressure thrust forces cancel acting across the tie rods attached to the tie flanges. The anchors are only loaded by the displacement forces in expansion joints.

In the pipeline with high pressure and larger sizes with strong anchors at the ends of straight sections, Spiroflex recommends mount-demount expansion joints. The expansion joints are equipped with restrain screws which bridge convoluted part of expansion joint and they absorb the pressure thrust force due to the internal pressure of pipeline. Furthermore the mount-demou...