According to ABYC guidelines, how far above flat surfaces should metal fuel tanks be installed?

In accordance with the ABYC guidelines, metal fuel tanks should be installed at least 1/4 inch above flat surfaces. This specification is critical because it helps to prevent potential contamination of the fuel system. Elevating the tank ensures that any accumulated moisture or debris on the flat surface does not seep into the tank, which could compromise the fuel quality and, consequently, the safety and performance of the vessel. Furthermore, this installation height also helps to accommodate possible vibration and movement of the vessel, ensuring that the tank remains securely positioned and functions reliably under varying conditions. Understanding these guidelines is essential for maintaining safe and effective fuel systems in marine applications.