Medium High Fin
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Used in water heaters, refrigerant condensers, air conditioners, refrigerant evaporators, oil coolers, process coolers, air coolers. The fins are integral with
the tube with an enhanced outside surface area. The integral structure gives excellent
thermal conductivity, strength and anti-vibration fatigue
property. |
 |
Formation of fins - by cold rolling the
outer surface of a plain tube to produce helical type fins having
an increased outside diameter to the original tube. Internally the
tubes are normally plain. Internal fins can also be supplied. Ends can be supplied plain or tubes can be fully finned.
The enda of the tubes can be belled with an outside diameter the same as the finned diameter.
This type of end reduces the wall thickness of the plain end.
Materials - copper, copper alloys, aluminium
Fin pitches 10 and 11 fins per inch.
Fin heights 3mm to 10mm.
Tube diameters 10mm to 38mm.
Finned tubes are supplied as finned.
Finned tubes can be supplied according to
the dimensions shown in the following tables. Sizes not shown in
this table can also be supplied. Please do not hesitate to contact
us with your requirements.
| Dz = od of finned section |
Dp = root diameter of finned section |
dw = id of finned section |
| t = fin pitch |
g = nominal fin thickness |
L = overall length |
Dz
mm |
Dp
mm |
dw
mm |
t
mm |
g
mm |
L
mm |
| 20 |
12 |
8 |
2.5 |
0.5 |
500-12000 |
| 22 |
16 |
14 |
2.5 |
0.5 |
500-12000 |
| 25 |
18 |
16 |
2.5 |
0.5 |
500-12000 |
| 32 |
22 |
18 |
2.5 |
0.5 |
500-12000 |
| 38 |
22 |
18 |
3.2 |
0.5 |
500-12000 |
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