Lord Fin Tube--Aluminum Extruded Fin Tubes 740 PCs

What is Aluminum Extruded Fin Tubes?

Aluminum Extruded Fin Tubes are made from the parent metal of a thick tubular aluminum sleeve into which the fluid handling tube has been inserted. There are no restrictions on the material of the fluid handling tube (it can be copper, copper nickel, stainless steel, titanium, duplex, etc.). The cold working of the fins in the finning process gives the fins exceptional mechanical resistance (strong fin, highly resistant to atmospheric corrosion, etc.). The pressure required to extrude fins from the aluminum sleeve forms a strong "pressure bond" between the two materials. Furthermore, because the aluminum fin material completely encloses the tubes metal, there is no risk of galvanic corrosion at the fin root (between tube and fin).

Aluminum Extruded Fin Tubes All of these benefits ensure the most consistent performance over time of any other fin type.

The performance degradation of a heat exchanger is primarily caused by two phenomena that occur over time:

Increased fouling resistance as a result of impurity accumulation in both fluids.

Thermal cycling dilatation of the materials and corrosion at the fin base or root cause increased thermal resistance at the tube-to-fin bond. Because of these factors, there is a loss of contact or bond pressure between the fins and the tube.

Bimetallic tubes with an exterior aluminum surface that has been finned by cold plastic deformation are known as extruded finned tubes.