Fin Tubes----LL-Foot Fin – Overlapped L
LL-Foot Fin tube – Overlapped L finned tube sort fin is usually referred to as double L or overlapped L fin, ar employed in applications wherever temperatures don't exceed concerning 350 degrees Gabriel Daniel Fahrenheit The fins ar factory-made from strip in like the L sort except that the foot is preformed into an accurately controlled stepped double L form, rolled into a taper that causes it to twist. LL-Foot Fin – Overlapped L is then ceaselessly helically wound below tension to a tube. The fin connect the tube with one fin overlapping the foot of successive fin with complete coverage of the bottom tube. this offers smart corrosion protection to the tube. this kind of tube is usually used as an alternate to the dearer extruded type fin in corrosive environments. The fins ar secured at every finish in a very similar means as L fin.
Fin foot is pre-formed into an LL form (overlapped LL) and applied to base tube below tension. However, foot is pre-shaped to relinquish overlap of 1 foot onto another, thereby rising base tube protection and thermal contact space Fin materials: aluminum, Base tube materials: Any metal material. the sleek flat fins perpendicular to the tube surface bring about to terribly low resistance to air or gas flow and ensures that fouling is unbroken to a minimum. The foot of the fin is involved with base tube and provides an entire overlay over the finned length.
Key Words: Finned Tube, Fin Tubes, Extruded Fin Tubes, Embedded Fin Tube, LL Fin tube, Tubos Aletados, Finned Tube Heat Exchanger
