Directional Movement for Fabric Expansion Joints — The Expansion Joints Blog
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Directional Movement for Fabric Expansion Joints

July 30th, 2012

Directional Movement for Fabric Expansion Joints

Fabric Expansion Joint Diagram Showing Axial Compression

Axial Compression

The reduction in the breach opening along the axis of the duct. This is usually a result of thermal expansion of the ducting.

Fabric Expansion Joint Diagram Showing Axial Extension

Axial Extension

The increase in the breach opening along the axis of the duct. In certain configurations, the duct thermal expansion may result in extension at the expansion joint location.

Fabric Expansion Joint Diagram Showing Laterial Movement

Lateral Movement

The relative movement of the upstream and downstream faces in the direction perpendicular to the axis of the duct.

Fabric Expansion Joint Diagram Showing Torsional Rotation

Torsional Rotation

The twisting of one side of the duct about the longitudinal axis.

Fabric Expansion Joint Diagram Showing Angular Rotation

Angular Rotation

The twisting of one side of the duct about an axis perpendicular to the longitudinal axis.

View our online fabric catalog for more information on fabric expansion joint movement
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