Lord Fin Tube-Low-fin tubes

Low-fin tubes are generally machined to form ribs with a certain height, a certain distance, and a certain thickness on the outer surface of the smooth tube.

Finned tubes are mostly used in air-conditioning condensers and heat exchange elements of evaporators, and low-finned tubes are often used in condensers. The structural parameters of the low-fin tube are mainly the inner diameter and outer diameter of the fin tube, the wall thickness of the fin tube, the fin pitch, the fin thickness and the fin height. Low-fin tubes mainly rely on external ribs (ribbing coefficient of 2~3) to expand the heat transfer area. Compared with light tubes, they have a larger surface area while consuming the same metal materials. It is the first time to enhance heat transfer from a direct view, but in essence, the increase in the heat transfer area also brings about an increase in the heat transfer coefficient. The fins can peel off the flow layer of the heat transfer surface and increase the disturbance of the heat transfer surface. The heat transfer effect strengthens the heat transfer twice. The main factors that affect the enhanced heat transfer of the ribbed surface are the height of the fins, the thickness of the fins, the pitch of the fins, and the thermal conductivity of the fin material. In addition, since one side of the heat transfer wall is expanded into a fin surface, the convective heat transfer on the smooth side and the heat conduction of the base wall have a certain effect on the total heat transfer.

Low-fin tubesThe fin pitch size of the low-fin tube needs to be determined according to the surface tension of the liquid and the shear force on the liquid film generated by the flow.

Links to Lord Fin Tube:

Brazed Copper Finned Tube

Laser Welding Finned Tube

Longitudinal Finned Tubes

Rectangular/HH Finned Tube

Embedded Finned Tube

HFW Solid Finned Tube

HFW Serrated Finned Tube

Extruded Serrated Finned Tube


Finned Tube Heat Exchanger