High Frequency Welded finned tubes use steel or stainless steel strip directly welded to tube surface by HFW.
Can improving heat transfer efficiency much more than bare tube.Due to the tight welding of the fins to the base tube, these finned tubes are often used in vibrating conditions.Fin type have Serrated fin and flat fin.
Fin material:
Steel, Stainless steel.
Stainless steel High Frequency Welded fins tube, carbon steel High Frequency Welded fins tube Duplex High Frequency Welded fins tube super duplex High Frequency Welded fins tube Air cooler fins tube, Air preheater fins tube.
Extruded fins tube Serrated fin tubes L Type fins tube G Type fins tube LL Type fins tube H Type fins tube KL Type fins tube HFW fin tube laser welded fin tube.
Base pipe O.D:15.88-165mm
Fin height:6-50mm
Fin thickness:0.3-0.5mm
Fin pitch: as customer’s request.
End:Plain Ends, Beveled Ends
No fin area on both side:As Customer’s request.
The advantages of high frequency welding serrated fin tube：
1. Higher heat transfer coefficient.
The serrate can make the gas flow across the fins freely, enhancing the turbulent motion and improving the heat transfer effect. Researches show that serrated fin tube’s heat transfer efficiency is about 15-20% higher than common solid fin tube.
2. Reduce metal consume.
Due to the higher heat transfer coefficient, for the same amount of heat, serrated fin tube is with less heat transfer areas, which help reduce the metal consume.
3. Anti-ash-deposition and anti-scaling.
Due to the serrate, it is very hard for the serrated fin tube to deposit the ash and scaling.
4. It is more flexible to adapt to the changes of gas flow direction.
In order to forward you a promt offer we would be pleased to receive you detailed enquiry 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 bend or weld the tubes into tubeplate or assembly)