METALCO offers different finned tubes: tension wound finned tubes, copper fin tubes, embedded finned tubes, extruded finned and low finned tubes. Tension would finned tubes are formed by winding a strip made of aluminium or copper around the tube under tension. The strip winding technology provides different types of fins: L-fin, LL fin, KL fin.
Embedded fins (G fins) are made by winding aluminium or copper strip into a helical groove machined on the outer surface of the tube. Extruded Finned tubes are bimetallic tubes whose outer aluminium surface is finned by cold plastic deformation.
The low finned tube is a finned tube obtained through plastic cold deformation. The method consists in realising from a smooth tube, dies with a particular geomantic form without removing material; this plastic deformation causes an increment of heat exchange efficiency and allows to reduce the heat exchanger size. The finned tubes quality is assured by hydrostatic and pneumatic tests.