FIN TUBE Manufactures a wide range of Finned Tubes ( with aluminum fins ) for the following industrial sectors Oil refinery Petrochemical industry Natural gas treatment Chemical industry Power plants Gas compressor stations The choice of a fin tube either for a new installation or for replacement spares is important as it determine the durability and efficiency of your air-cooled exchanger .once you have decided on the tube tarts ( diameter , wall thickness , length , material ) and fin spacing , it remains to decide the type of fin-mounting to be used. BIMETALLIC EXTRUDE A core tube , or liner , the outside surface of which has been previously polished and carefully digressed ,is fitted into an aluminum primary tube.This tube-in-tube assembly is then fed into the fining machine equipped with three spindles,120 degrees spaced and each fittedwith a gang disc Maximum Working Temperature of 300 c, excellent Atmospheric Corrosion Resistance and excellent mechanical Resistance.Such discs ,which are stepped in profile and diameter,will first extrude and shape the fin properly and then shrink-fit the primary tube on its liner. Arvin Tav has developed a hight performance bimetallic extrude 8.5 - 11 fins/inch extruded finned tube which combines a large flow area whit a long life duration.