|
|
|
| |
|
| |
The tubes can be of virtually any material available, such as carbon steel, stainless steel, admiralty brass, or other types of exotic alloys. The fin material will be either aluminum or copper. The fin tube application and its advantage can be referred under the finning machines and tubes.
|
| |
 |
|
 |
Extruded Finned Tubes |
|
Spiral Finned Tubes |
|
| Base Tube Material |
: |
Carbon Steel, Stainless Steel, Copper, Copper Nickel or Aluminum Brass |
| |
|
|
| Fin Height |
: |
6.3mm to 19mm for spiral |
| |
|
15.8mm max. for extruded |
| |
|
|
| Fin FPI |
: |
7 to 13.5 for spiral |
| |
|
4 to 10 for extruded |
| |
|
|
| Diameter of Tube |
: |
OD12.7 to OD50.8mm for spiral |
| |
|
OD19 to OD50.8mm for extruded |
| |
|
|
| Fin Material |
: |
Aluminium or Copper |
|
| |
 |
|
 |
'L' Fin
| - |
|
The fin is helically wanned on the tube by giving maximum contact between the fin and the tube. |
| - |
|
Max operating temperature is 150 Degrees Celcius |
| - |
|
The foot of the fin provides a considerable degree of corrosion protection |
|
|
'LL' Fin
| - |
|
Same as 'L' Fin except the fin foot is overlapped giving more corrosion protection |
| - |
|
Max operating temperature is 175 Degrees Celcius |
| |
|
|
|
 |
|
 |
'KL' Fin
| - |
|
Same as 'L' Fin except both the base tube surface and fin foot is knurled to enhance bonding and improve heat transfer efficiency |
| - |
|
Max operating temperature is 260 Degrees Celcius |
| |
|
|
|
|
'G' Fin
| - |
|
The fin strip is securely wound into a helical groove machine on the tube surface and back filling with base tube material. This type of fin give a much better heat transfer efficiency than the rest of the finning |
| - |
|
Max operating temperature is 450 Degrees Celcius |
| |
|
|
|
|
|
