Double hinged expansion joints consist of two bellows with pipe ends or flanges. This type of expansion joint come with a central pipe and double hinges to absorb pressure loads created by internal pressure – hence the pipeline does not require strong anchors. Double hinged expansion joints can only accept angular and lateral movements in one plane.

Specification

According to EN 14917

X = Applicable

(X) = Limited Use

Type Double Hinged Expansion Joint
Pressure Thrust Yes
Axial
Lateral Single-Plane X Multi Plane
Angular Single-Plane X Multi Plane