Economy and Energy Saving
The high-fin tube is used to advantage when gases are to be heated or cooled or when a process stream is to be air-cooled. High-fin tubes come in a wide variety of fin heights, thickness, and spacings, giving values of Ao/Ai up to 25. For corrosion protection, a mechanically bonded liner tube may be used inside the finned tube. The liner can be made of corrosion-resistant alloy, while the outer tube and fins are made of a high conductivity metal such as copper or aluminum to improve heat transfer.
One major application of high-finned tubes is in air-cooled heat exchangers. Atmospheric air, like all low pressure gases, gives a very low heat transfer coefficient at normal velocities. By contrast, the tube-side fluid, usually a liquid to be sensibly cooled or a vapor to be condensed may have a coefficient up to 100 times higher, or even more. Therefore, high-finned tubes are used in these exchangers to reduce to overall size of exchanger required.
ASME SA213/ASTM A213,ASME SA106/ASTM A106,ASME SA179/ASTM A179,ASTM B111
Base Tube Material
stainless steel, carbon steel, copper alloy,alloy steel (No theoretical limit)
Aluminium,Copper Alloy,Stainless Steel,Carbon Steel
Fin Tube Type
1.Extruded fins tube
2.Serrated fin tubes
3.L Type fins tube
4.G Type fins tube
5.LL Type fins tube
6.H Type fins tube
7.KL Type fins tube