G Fin (Embedded fin)

The fin strip is wound into a machined groove on the tube surface and securely locked into
place by back filling with base tube material. This offers exceptional heat transfer
efficiency at higher tube metal temperature.

Maximum Working Temperature : 750℉(400℃) / Fin Materials : Aluminum, Copper, Carbon Steel

L Fin

L-shaped strip gives optimum contact pressure of the fin foot onto the base tube thus
improving the heat transfer efficiency. This also gives considerable corrosion protection
to the base tube.

Maximum Working Temperature : 270℉(130℃) / Fin Materials : Aluminum, Copper

LL Fin

Same as L Fin except the fin foot is overlapped giving more corrosion protection.
This type of finned tube is often used as an alternative to the more expensive
extruded type fin in corrosive environments.

Maximum Working Temperature : 330℉(165℃) / Fin Materials : Aluminum, Copper

KL Fin

Same as L Fin except that the base tube is knurled bafore application of the
fin foot. After application, the fin foot is knurled into the corresponding knurling
on the base tube thereby enhancing the bond between the fin and tube, resulting in
improved heat transfer characteristics.

Maximum Working Temperature : 500℉(260℃) / Fin Materials : Aluminum, Copper