If you have a piping run that requires insulation, what is an important consideration for the hanger size?

The important consideration for the hanger size in a piping run that requires insulation is the outer diameter of the pipe with insulation. When selecting hangers, it's crucial to account for not just the pipe's size but also the additional dimensions added by the insulation material.

Correctly sizing the hanger ensures that it can adequately support the insulated pipe, which is heavier and may have a larger diameter than the bare pipe itself. If the hanger is too small to accommodate the insulated pipe, it could lead to improper support, which might result in pipe strain, potential failures, or safety hazards within the system.

While the thickness of the insulation is a factor, it is the combined measurement including the pipe's original outer diameter and the added insulation that ultimately dictates the required hanger size. Hanger material, although important for other reasons such as durability and corrosion resistance, does not affect the sizing in the same way. The number of hangers could influence spacing and support strategy but does not directly relate to the specific sizing of individual hangers required to hold the insulated piping securely.