What is the axial restraint between the foam insulation and a pipe clamp?

Axial restraint is usually the clamping forceand in case axial load is considerably higher, axial stops are welded to theinside of the clamp to prevent axial movement of the insulation within thesupport.

Cold Insulated Pipe Anchors With Axial Stops
Cold Insulated Pipe Anchors with Axial Stops