ANGULAR EXPANSION JOINTS

Gimbal angular expansion joints
Gimbal expansion joints are designed to absorb movements in several planes via the gimbals without transferring reaction forces onto the pipeline. A gimbal is more flexible than a hinged expansion joint as the gimbal enables the expansion joint to absorb both angular rotation and lateral movement. Anchors for absorption of the pressure thrust force in the pipeline are not needed when gimbal expansion joints are installed. Only guides and intermediate guides are required, as they control the movements in-between the expansion joints. The gimbals add the same stability as anchors to the pipeline and the expansion joint.  Likewise, wind stresses and loads from connected pipe/equipment are reduced when installing gimbal expansion joints.