Heat Transfer Surfaces

L Finned Tube

Economically produced fin tube for moderate working temperatures up to 150℃.
ā€œLā€ finned tube relies on maximum surface contact between fin and tube which is ensured by tension forming fin strip helically around the base tube.
A considerable degree of corrosion protection is given to the tube by the base of the fin.
We can also fin Nominal bore tube from 3/8" to 1 ¼".

Manufacturing Details

Aluminium "L" finned tube

Max. Fin Height - 22.22 mm(0.875")
Min. Fin Height - 9.5 mm (0.375")
Max. Fin Density - 11 FPI (433 FPM)
Min. Fin Density - 6.5 FPI (205 FPM)
Max. Tube Diam. - 38.1 mm (1.5")
Min. Tube Diam. - 12.7 mm (5/8")
Max. Tube Length - 15m (49 ft)


Copper "L" Finned Tube

Max. Fin Height - 19.05 mm(0.75")
Min. Fin Height - 6.35 mm (0.25")
Max. Fin Density - 11 FPI (433 FPM)
Min. Fin Density - 6.5 FPI (315 FPM)
Max. Tube Diam. - 38.1 mm (1.5")
Min. Tube Diam. - 9.5 mm (5/8")
Max. Tube Length - 15m (49 ft)


Base Tube Material

Carbon Steel, Stainless Steel, Copper, Copper Alloys, Titanium.
L Finned Tubes