16.01 What are common types of aboveground piping?

Aboveground piping for fuels is typically carbon steel piping. Regulations prohibit pipe materials such as plastics that would have a relatively low failure temperature in the event of a fire.

Schedule 40 carbon steel black pipe is typical for primary piping. Schedule 10 carbon steel black pipe is typically used for secondary piping.

Double wall piping in buildings is sometimes provided as pre-engineered piping such as that made by Perma-Pipe and Rovanco. Many mechanical contractor also shop fabricate their own secondary containment systems.