Special Type Of Finned Tube

Low-fin tubes mainly rely on ribbing outside the tube (ribbing coefficient is 2~3) to expand the heat transfer area. Compared with light tubes, they have a larger surface area with the same consumption of metal materials. From a visual perspective, it is the first enhancement of heat transfer, but in fact, the increase in heat transfer area also brings about an improvement in the heat transfer coefficient. The fins can peel off the flow layer on the heat transfer surface and increase the disturbance on the heat transfer surface. The heat transfer effect strengthens the heat transfer twice. The main factors that affect the enhanced heat transfer of ribbed surfaces are fin height, fin thickness, fin spacing 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 convection heat transfer on the smooth side and the heat conduction of the base wall will have a certain impact on the total heat transfer. The fin spacing size of the low-fin tube needs to be determined based on the surface tension of the liquid and the shear force on the liquid film generated by the flow.

Low Finned Tube Quick Details:
Fin type: Solid plain
Outer diameter (OD): 12.7mm~25.4mm
Tube length: up to 25000mm
Fin height: 1.2mm ~2.77mm
Fin thickness: about 0.3mm
Fin pitch: 30 FPI/28 FPI/26 FPI/36 FPI/43 FPI

Low Fin Tube

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