The tanks for oils and greases of the series FT are conceived to store and preserve various products. They are usually tanks without stirrer, but if the product risks sedimenting, it is possible to install slow stirrers (“multi-paddle” type) or quick (“marine helix”). To keep the organoleptic features of the tank it is possible to predispose the tank for inerting with nitrogen. In this case the tank will be provided with a series of accessories enabling to work under a light over-pressure in safety conditions. The correct temperature of the product is granted by the heating/cooling interspace on the bottom and on the cylindrical plating of the tank. The shape of the interspace is designed by Boema to grant an optimal circulation of the heating fluid and an high reliability: all the interspaces are tested for 6 bar. To minimize the thermal dispersion, the heated parts are covered with a high density isolating layer, closed into an outer jacket made of stainless steel and completed welded.