System Technology – Axial

Expansion joints in axial pipe systems move parallel to the pipe centerline. This common configuration includes straight piping with main anchors at the end of a run to react pressure force, spring force, alignment guide friction force, and support friction force.

Benefits

Lowest cost expansion joint products
Lowest pressure drop if there are no changes in direction
No change in direction required

Considerations

Highest system install cost from anchor size and number of alignment guides
Highest expansion joint and system forces, including pressure force
Highest forces and risk, pressure thrust applies
Main anchors required
Maximum number of alignment guides
Not typically used for hanging or rooftop systems
For lower system forces and install costs, consider a lateral system or pressure balance configuration
Main anchors, supports, and alignment guides are required for correct operation and safety

Applications

Tunnel, ground-based, riser, or buried energy distribution systems across large distances where anchors are practically located at ground level or to substantial structures
Commercial, Industrial, Power Generation, Petrochemical, Marine, Defense, and Laboratory of all sizes and pressures