There are many types of finned tubes, and new varieties are constantly emerging, which can be roughly classified according to the following aspects:
Classified by processing technology:
1. String tube (sleeve tube);
2. Tension winding finned tube;
3. Insert tube;
4. Integral rolled finned tube;
5. Cast finned tube;
6. Welded finned tubes, which are divided into: high-frequency welded finned tubes, submerged arc welded finned tubes, etc.
Classified by fin shape:
1. Square, rectangular, circular finned tubes;
2. Spiral finned tube;
3. Corrugated finned tube;
4. Zigzag finned tube;
5. Needle finned tube;
6. Longitudinal finned tubes;
7. Integral plate finned tube (plate fin). Wait.
Classified by material
1. Copper, Al, Cu/Al finned tubes;
2. Carbon steel, stainless steel, carbon steel/stainless steel finned tube;
3. Cast iron (cast steel) finned tubes; etc.
Classification by purpose
Finned tubes for air conditioning;
Finned tubes for air cooling;
Boiler: finned tubes for water wall, economizer and air preheater respectively;
Various kilns, finned tubes for waste heat recovery of industrial furnaces;
Other special-purpose finned tubes, etc.