The 168mm (6″) size is a specialized solution for the largest industrial applications. It is used in facilities with extreme air consumption, providing a reservoir-like effect within the pipe itself to buffer sudden demand spikes.
Ideal Applications:
Mega-Factories: Battery plants, steel mills, and massive chemical processing facilities.
Loop Headers: The primary ring for facilities spanning hundreds of thousands of square feet.
Energy Efficiency Projects: Replacing smaller, restrictive headers to dramatically lower energy costs.
Selection Tip: Use 168mm for the absolute highest flow requirements, typically in plants utilizing 300HP to 500HP+ compressor systems.