Extruded Finned Tubes
Aluminium or copper fin formed out of a tube that is pushed over the base tubes.The complete tube is covered and if necessary a part of the unfinned end can be machined into a sleeve. This way the unfinned part behind the tube sheet is also covered with aluminium.
Production:
The base tube is degreased and pushed into the barrel. The aluminium tube is pushed in the same barrel, over the base tube. In the next step the tube will be pushed into the machine where the outer tube is formed into a fin and the aluminium is pressed on the base tube. This creates the bonding for the heat transfer from the tube into the aluminium fin.
Specifications
| Max. tube wall temperature | 310°C |
|---|---|
| Base tube material | Carbon steel – stainless steel – duplex – nickel alloys – copper/copper alloys |
| Finning material | Aluminium – copper (copper depending on the required fin height). |
| Range of finning | Tube length: 200 – 22000 mm |
| Base tube diameter | 15,88 – 50,8 mm |
| Finning heights | 6,35 – 25,4 mm (depending on the tube OD) |
| Fin pitch | 5 – 12 fpi |
| Capacity | 4500 meter per day |
