Assembled inside the tank with the new floating disk according to "Oil Depot saving design guidelines" and other related regulatory requirements, light tanks should be floating roof tank. Fabricated aluminum within the floating disc for the energy-saving products. According to media characteristics, floating disc made of aluminum, steel, stainless steel quality. Category A, cobweb-like hexagonal aluminum floating disc B, triangular stainless steel floating disk C, well shaped stainless steel floating disk D, Keys box within the floating disc design, installation and follow the rules / standard vertical cylindrical welded steel Tank design specifications GB50341-2003 industrial aluminum and aluminum alloy extrusion profiles GB / T6892-2000 oil depot design specifications GB50074-2002 assembled structural features within the floating disc 1. The unique hexagonal structure assembled spider inside floating disc with a unique web-like hexagonal structure, and the total amount of conventional floating disc material is the same, high structural strength, good stability. 2. Small size more float distribution, enhance the reliability of the float and number, on the floating disc distribution, avoiding the disclosure of individual float cause the entire floating disc tilt, chuck phenomenon, enhances the reliability of the floating disc. In a small float, so that small distance between the float and the panel, the lower frame below the liquid level, and thus divided between the skeleton and the skeleton surface, forming a plurality of liquid surface stingy room. Stingy room to run level fluctuation produced a better damping effect generated by the impact absorbing operation, to ensure smooth operation. 3. The outer float concentrated, ensure the seal is reliable, stable and assembled inside the floating disc with a unique float layout. Wherein the outer ring, along with the nearby perimeter seal, even a plurality of the float, the sealing strip by force, to overcome the friction generated between the floating disc generated during the operation of the sealing tape and the tank wall, but also enhance the structural strength of the sealing strip nearby, thus ensuring the safe operation of floating disc seal tape does not appear chuck phenomenon. 4. The use of special aluminum tube assembled as a float within the floating disc with a special aluminum tubes, no longitudinal seam, reducing the possibility of leaks. 5. energy saving, energy saving effect, saving rate of 98%. Oil floating disc design ensures a minimum of space, effectively reducing the amount of volatile medium, saving rate of 98%. Use safety and reduce pollution. 6. Oil Tank utilization is high due to the small space, usually less than 90%, the entire structure is only 300mm thick, increase the tank space, improve storage utilization tank. 7. Easy to install, fast, low maintenance cost floating disc mounting bolts, without welding; mold parts to achieve, standardized production, interchangeability.