HFW Serrated Finned Tube, High Frequency Welded Serrated Fin

Helical serrated finned tube, the serrated fin is a metal strip that has been serrated or cut and then helically wound around the base tube. Others are the same as high-frequency welded solid fin pipes.

The important features of this configuration are efficiency, the effective bond of the fin to tube under all conditions of temperature and pressure, and the ability to withstand high fin side temperatures. This serrated fin configuration is even better to withstand the fin fouling if that is a problem in the application. This gives better heat transfer properties compared to solid fins.

Base Tube Details

- Tube Diameter:  20 mm OD Min to 219 mm OD Max.

- Tube Thickness:  Minimum 2 mm up to 16mm

- Tube Material:  Carbon Steel, Stainless Steel, Alloy Steel, Corten steel, duplex Steel, Super Duplex Steel, Inconel, High Chrome High Nickle & Incolloy, CK 20 material, and some other materials.

Fin Details

- Fins Thickness:  Min. 0.8 mm to Max. 4 mm

- Fins Height:  Min 0.25” (6.35 mm) To Max.1.5” (38 mm)

- Fin Density:  Min 43 Fins per Meter to Max. 287 Fins per Meter

- Material:  Carbon Steel, Stainless Steel, Alloy Steel, Corten steel, Duplex Steel, and Incolloy.

High-Frequency Welded Serrated Fin Tube fabrication process.

The steel fin is helically wound and continuously welded to the tube by high-frequency electric resistance welding(HFERW). Before the fin strip is served to the welding machine, it will be serrated first, the rest of the process is as same as welding the solid fin tubes.

High-Frequency Welded Serrated Fin Tube Delivery period required.

Total eight (8) PLC High-Frequency Welded Serrated Fin Tube finning lines, monthly production capacity is 1200 tons in total.

In order to forward you a prompt offer we would be pleased to receive your detailed inquiry including:

? Base tube material 

? Base tube size (OD x WT x Length)

? Fin material

? Fin type

? Fin diameter or height

? Fin thickness

? Fins per inch, meter, or fin pitch

? Lenght of plain, unfinned ends

? Finned Tube Quantity

(Additional fabrication, such as bending or welding the tubes into tubeplate or assembly)