DOUBLE WALLED FUEL TANK
They are tanks that allow the safe and large amounts of fuel types called fuel oil and liquid fuel to be stored under and above the ground. Underground fuel tanks are cylindrical horizontal containers that are used to store flammable and non-flammable water contaminating liquids underground. Aboveground tanks have their own feet. Fuel oil fuel tanks produced in accordance with TSE EN 12285-1 and 12285-2 standards are manufactured from ST 37-2 carbon steel. These tanks, which consist of two interlocking tanks, ie layers, are called double-walled tanks.
In fuel tanks, it is called the sheet metal partition forming the outer surface of the wall tank. If this partition is made up of double layers, it is double skinned. In double-walled fuel tanks, S235JR (black sheet) or optional stainless steel is available.