25.04 What is a fuel header system?

A fuel header system is designed to provide fuel to multiple generators, where there are severe regulatory restrictions to the volume of fuel that can be stored in the generator room. The header is an 8” to 12” diameter pipe which runs the length of the room to serve all generators. The pipe is sized to be less than the regulatory limit for fuel storage quantities in the room.

The generators draw fuel from the header pipe, and return fuel to the header pipe.

The fuel supply pumps draw fuel from a bulk tank and pump to the header inlet. The header outlet is a gravity overflow back to the bulk storage tank.