High Frequency Stainless Steel Air Dry Finned Tube

High Frequency Welded Fin Tube Product Description:

High frequency welding spiral solid Fin Tube is manufactured by helically wrapping continuous fin strip on tube. HF Resistance Welding Usually Employs Frequency Of 400 kHz. The fin wound around the tube and continuous weld. The fin strip is wounded spirally onto the tube and welded continuously with a high frequency electrical process to the base tube along the spiral root. The fin strip held under tension and confined laterally as it is formed around the tube, thereby ensuring that the strip is in forceful contact with the base tube surface.

High frequency welding spiral serrated fin tube is now more and more popular in the manufacturing of boiler, pressure vessel and other Heat Exchanger equipment. Spiral serrated finned tube, serrated fins cut from metal strip and then helically wound around the tubes. Others are same as high frequency welded solid finned Tubes Pipes.

The important features of this configuration are efficiency, effective bond of fins to tubes under all conditions of temperature and pressure, and 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 fin.

High Frequency Finned Tube Manufacturing Process:

The steel fin is helical wound and continuously welded to the tube by high frequency electric resistance welding(HFERW). The high-frequency current is introduced into the work piece, and the welding contact surface is melted or semi-melted by resistance heat, then apply appropriate pressure to the weld contact surface to complete the welding of the finned tube. This produces an homogeneous, clean and continuous fin-to-tube bond with no additional weld material, for a very efficient heat flow and resistance to corrosion.

High Frequency Welded Fin Tube(Electric Resistance Welded Pipe) Advantages:

1.Simple and economical installation High frequency welding spiral fin tube are with zero connection point, so that the installation is more economical, fast, and reduce the probability of leakage at the joint.

2. Easy maintenance. After installation, high-frequency welded spiral fin tube doesn’t need additional maintenance.

3. High efficiency High frequency welding spiral fin tube is full contact welding between fin and steel tube whose heat dissipation area is more than 8 times of bare tube. In addition, the smooth internal wall reduces water flow resistance as well.

4. Long service life, Fin and pipes are combined with high mechanical strength whose tensile strength is more than 200 Mpa. Both inside and outside of the tube are treated with hot dip galvanized processing.

High Frequency Welded Fin Tube(Welded Aluminum Pipe) Properties:

Manufacturing Process:- Continuously Welded Spiral Fin Tube

Fin To Tube Bond:- Excellent

Heat Transfer Efficiency:- Excellent

Mechanical Resistance:- Excellent (Hence can be frequently cleaned with high pressure jets unlike other fin tubes. Thereby reducing down time and increasing overall life)

Corrosion Protection:- Moderate

Temperature Range:- Up to Maximum 500 Deg C

High Frequency Welded Fin Tube(Spiral Welded Pipe) Applications：

High frequency welded spiral finned tubes are generally used for petrochemical industry and mostly installed on the convection sections of fired heaters, waste heat boilers, economizers, air preheaters, and heat exchangers involving the transfer of heat from a hot fluid to a colder fluid through a tube wall.

High Frequency Welded Fin Tube(Spiral Welded Pipes) Specifications：