Thermal expansion of piping: supports, guides and anchor points

Piping changes length when water temperature varies.

Why it matters

If expansion is not correctly planned for, noises, stresses at connections, or pipe displacement may occur.

Supports and guides

They direct the movement of the piping without completely blocking it.

Anchor points

Used to control where displacements will occur.

Proper design

Pipe material, length, and temperature range determine how much expansion should be expected.