HFW High Frequency Welded Solid Type Spiral Finned Tube
High Frequency Welded fin tube also called solid type fin tube,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.
| Tube and Pipe Size available |
| Plan Tube OD |
15.88/ 19.05/ 25.4/ 31.8/ 38.1/ 50.8/ 63.5/ 76.0 mm |
| Plan Pipe OD |
26.7 / 33.4 / 42.2 / 48.3 / 60.3 / 73.0 / 88.9 / 101.6 / 114.3 / 141.3 / 168.3 and 219.1 mm |
| FPI |
8~ 11 or as requirement. |
| Fin materials |
aluminium, stainless steel, Copper, Special metals as required. |
Fin Height
Range |
Solid Fin is 6.3 to 31.8 mm
Serrated Fin is 12.7 to 38.1 mm |
Technical Specifications:
| Base Tube Material |
stainless steel, carbon steel, copper alloy,alloy steel (No theoretical limit) |
| Fin Material |
Aluminium,Copper Alloy,Stainless Steel,Carbon Steel |
| Fin tube Max design temperature |
<450°C |
| Base pipe O.D |
25-165mm |
| Fins per inch |
20 Nos(as customer's request) |
| Fin depth |
0.5-3mm |
| Product processing |
Extruded,Embedded,High Frequency Welding etc. |
| Fin Tube Type |
Extruded fins tube |
| Serrated fin tubes |
| L Type fins tube |
| G Type fins tube |
| L L Type fins tube |
| H Type fins tube |
| KL Type fins tube |
Base tube material:
· stainless steel, carbon steel, alloy steel
· ASME SA213/ASTM A213 TP304/304L TP316/TP316L TP321 TP310S TP317,
· ASME SA106/ASTM A106 Gr B Gr C,ASME SA179/ASTM A179,ASME SA192/ASTM A192
Fin material:
· Alloy 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.
Specification:
* 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 and drawing
Features:
1. Because of the fast welding speed and the strong self-cooling effect of the welded parts, not only the heat-affected zone is small, but also the oxidation is not easy to occur, so the organization and performance of the weld is very good.
2. Low contact heat resistance, high stability, anti-dust accumulation ability.
3. Large heat exchange area.
Application:
Air Cooler, Charge Air Chiller, Condenser, Evaporator, Fluid Cooler, Gas Cooler, Oil Cooler, Radiator, Refrigeration, Steam to Air Heat Exchanger, superheater etc.
Package:
In bundles, plywood cases, wooden cases with water-proof package, etc.
High frequency welding finned tube Function:
1. High frequency welded finned tube is a type of finned tube, which is mainly welded by high frequency welding and is a new type of excellent heat dissipation element. The high frequency welding finned tube is welded with high frequency current, the welding method is reliable and excellent, the welding seam is small, and the surface of the radiator is more solid as well as beautiful.
2. High frequency welded finned tube is a heat sink element often used in finned tube radiators. Welding high-frequency welded finned tube on the base tube of the radiator improves the heat transfer coefficient of the heat exchanger side of the radiator and enhances the heat dissipation effect of the radiator, and the excellent heat dissipation effect makes the finned tube more and more popular.
3. The high frequency welding finned tube is welded with high frequency current, which can increase the compactness of the radiator and improve the safety of the high frequency welding finned tube radiator in the operation process. The high-frequency welding process is an improved and upgraded process on the basic welding process, which is also a more excellent welding process.
4. The more excellent welding process adopted for high-frequency welded finned tubes, the faster the welding speed and the narrower the weld seam, the more beautiful the appearance of the radiator. High-frequency welded finned tube has a simple and generous appearance, mainly in silver and gray, and can be suitable for a variety of styles of decoration, which is widely used in the field.
5. High frequency welded spiral finned tube is one of the most widely used spiral finned tubes, and is now widely used in power, metallurgy, waste heat recovery in cement industry and petrochemical industry.
High frequency welded finned tubes are highly adaptable and widely used, and have been widely used in a variety of fields such as industry and agriculture. High-frequency welded finned tubes are easy to operate, and users can operate them flexibly and simply to achieve the basic purpose of raising indoor temperature and providing comfort to people in the room.
6. High frequency welding spiral finned tube is in the steel strip winding steel pipe at the same time, the use of high-frequency current skin effect and proximity effect, the steel strip and the outer surface of the steel pipe heating, until the plastic state or melting, in the winding steel strip under a certain pressure to complete the welding. This high frequency welding is actually a solid-phase welding. Compared with inlay, brazing (or overall hot-dip galvanizing), it is more advanced in terms of product quality (high welding rate of fins, up to 95%), productivity and automation.
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