Rolling/ Coiling Fin Tubes for Replacing Air HE
Air heat exchanger is a kind of heat exchanger that is used to cool or heat forcibly flowing air with water, glycol solution, steam or heat conduction oil as the medium. It is extensively applied in hot air heating, drying, cooling, dehumidifying and other works in such industries as light industry, building, chemical engineering, machinery, textile, printing & dyeing, electronics, food, starch, medication, metallurgy and painting. Different models of heat exchanger should be selected according to the actual working conditions.
Heat exchange tube and fin
Selection principles, steel standards, thermal treatment states and permissible stress values of the materials of the pressure parts should be subject to requirements of the GB 150.
The pressure parts used in inflammable, fatal or toxic operating environments should be made of cast iron.
The common parent tube materials include carbon steel Q235B, 20#, 304, 316, copper tube, etc.
The common fin materials include carbon steel, 304, 316, aluminum, etc.
Other parts
See Table 2 for the common materials of other parts.
| Parts of the air radiator |
Material |
| Connecting plate |
Carbon steel Q235B, 304, 316 |
| Tube plate |
Carbon steel Q235B, 304, 316 |
| Header tank (header pipe) |
Carbon steel Q235B, 304, 316 |
| Interface |
Carbon steel Q235B, 304, 316 |
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