| Customization: | Available |
|---|---|
| Type: | Seamless |
| Technique: | Cold Drawn |
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With an aim to increase the heat exchanging efficiency, It's usually to extend the surface area (or internal surface area) by adding fins onto a tube, which, through this manufacturing process, would greatly improve and upgrade the heat transferring efficiency of heating tube, it's called Finned Tube or Fin Tubes.
♦ Welded finned tubes
♦ Extruded finned tubes
♦ Welded helical solid finned tubes
♦ Welded serrated finned tubes
♦ Welded helical serrated finned tubes
Our Advantages
Professional facility to produce in excess of 100 tons of quality finned tube per month.
♦ Over 20 years experience
♦ Out standing quality
♦ Three different finning process
♦ Two fully automatical H.F Induction Welding Lines
♦ More than 15 finning machines
♦ Different coiling and bending process
♦ Highly skilled technicians
♦ Numerous domestic and overseas customers
|
Items |
Code |
Dimensions |
Tolerances |
|
Tube outside diameter |
D1 |
Φ25~Φ219 mm |
±0.2 mm |
|
Fin outside diameter |
D2 |
Φ37~Φ279 mm |
±0.75 mm |
|
Fin pitch |
M |
4~90 mm |
±0.2 mm |
|
Fin height |
H |
6~30 mm |
±0.75 mm |
|
Tube thickness |
δ1 |
2~16 mm |
±0.15 mm |
|
Fin thickness |
δ2 |
0.8~2.5 mm |
±0.1 mm |
|
Unfinned tube ends length |
L1 |
customized |
±1‰*L1 mm |
|
Unfinned tube ends length |
L2 |
customized |
±1‰*L2 mm |
|
Maximum tube length |
L |
0.5~25 m |
±1‰*L mm |
Ordering and Delivery
For a given pipe or tube size, the desired heat transfer surface area per unit length of tube can be obtained by specifying the appropriate fin height, fin thickness and number of fins per inch.
If the whole transfer surface area of the finned tube is A and the transfer surface area of the tube is A0, then nominal the ratio A/A0 should be 5 to 12.
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