| We are one of manufacturers of integrally finned tubes
This integral finned tubes are widely used as heat exchanger tubes because of their large external surface area and high heat transfer performance compared with a plain tube. This enhanced surface fin tubes allow our customers to either reduce the size of the heat exchanger or increase its performance. |
|
◆ Product range |
◆ Forming Process by Extrusion |
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Low Fin Tube |
Product Range
- • Outside diameter : 12.7 mm(min) ~ 38.1 mm(max)
- • Pitch : 19 ~ 36 FPI
- • Fin height : 0.7mm ~ 1.588mm
- • Length : 20,000mm(Max.)
- • Product capacity per month : 150,000 meter
The Maximum heat transfer ratio of low finned tubes will be up 2.5 to 3 times to compare with plain bare tubes and also it can be not only reduced the cost for new equipment or retrofitting of old equipments but also save the size or weight of new equipment from the beginning stage of basic design.
Low Finned Tube material and application
| No. | Standards | Material | Application |
| 1 | ASTM A498 | Carbon & Carbon alloy | Heat exchanger for Oil refinery and Petrochemical plants |
| 2 | ASTM A1012 | Stainless & Duplex alloy | Condenser and Heat exchanger for Petrochemical & Power plants |
| 3 | ASTM B359 / ASME SB359 | Copper & Copper alloy | Heat exchanger for Petrochemical plants, Condenser & Evaporator for Power plants |
| 4 | ASTM B891 | Titanium & Titanium alloy | Condenser and Heat exchanger for Steam & Nuclear power plants |
| 5 | ASTM B924 | Nickel alloy | Condenser and Heat exchanger for Chemical plants |
- • Dt : Outside diameter of plain end
- • Df : Diameter over fins
- • Dr : Root diameter of finned section
- • Di : Inside diameter of finned section
- • Tw : Wall thickness of plain section
- • Fw : Root wall thickness of finned section
- • PL : Plain end length
- • FL : Finned section length
- • A : Finned section taper length
- • LS : Land section length
- • TL1, TL2 : Length between plain end and land area
- • El : Entire length
SPECIFICATION
|
Fins/inch
|
(mm)
Nom. dimensions |
(mm)
Plain section dimensions |
(mm)
Finned section dimensions. |
(㎡/m＋10)
Outside surface area |
Out./in
surface area ratio |
㎡×10)
Cross sectional area |
||||
|
Out. dia. |
Wall
thickness |
(Do)
Out. dia. |
(Tw)
Wall thickness |
(Df)
Out.dia. |
(Df)
Root dia. |
(Fw)
Wall thickness |
||||
|
19
|
12.7
|
0.81
|
–
|
1.24
|
–
|
0.71
|
9.75
|
4.79
|
0.49
|
|
|
1.07
|
12.7
|
1.47
|
12.7＋0.-04
|
9.53
|
0.94
|
5.13
|
0.43
|
|||
|
1.24
|
–
|
1.65
|
–
|
–
|
1.12
|
6.38
|
0.30
|
|||
|
15.88
|
0.71
|
–
|
1.07
|
–
|
–
|
0.64
|
12.34
|
3.48
|
1.00
|
|
|
0.89
|
–
|
1.32
|
–
|
–
|
0.79
|
3.60
|
0.94
|
|||
|
1.07
|
15.88
|
1.47
|
15.88＋0.-04
|
12.7
|
0.94
|
3.72
|
0.88
|
|||
|
1.24
|
–
|
1.65
|
–
|
–
|
1.12
|
3.85
|
0.82
|
|||
|
1.65
|
–
|
2.11
|
–
|
–
|
1.47
|
4.18
|
0.70
|
|||
|
19.05
|
0.71
|
19.05
|
1.24
|
–
|
–
|
0.64
|
15.12
|
3.33
|
1.64
|
|
|
0.89
|
1.32
|
–
|
–
|
0.79
|
3.41
|
1.56
|
||||
|
1.07
|
–
|
1.47
|
19.05＋0.-04
|
15.88
|
0.94
|
3.50
|
1.48
|
|||
|
1.24
|
–
|
1.65
|
–
|
–
|
1.12
|
3.60
|
1.41
|
|||
|
1.65
|
–
|
2.11
|
–
|
–
|
1.47
|
3.84
|
1.24
|
|||
|
2.11
|
–
|
2.41
|
–
|
–
|
1.88
|
4.13
|
1.07
|
|||
|
26
|
12.7
|
0.81
|
–
|
1.42
|
–
|
–
|
0.71
|
11.91
|
4.79
|
0.43
|
|
1.07
|
12.7
|
1.68
|
12.7＋0.-04
|
9.53
|
0.92
|
5.13
|
0.43
|
|||
|
1.24
|
–
|
1.88
|
–
|
–
|
1.12
|
6.38
|
0.39
|
|||
|
15.88
|
0.71
|
–
|
1.25
|
–
|
0.60
|
0.60
|
15.34
|
4.30
|
0.97
|
|
|
0.89
|
15.88
|
1.42
|
15.88＋0.-04
|
12.7
|
0.79
|
4.47
|
0.94
|
|||
|
1.07
|
–
|
1.68
|
–
|
–
|
0.94
|
4.63
|
0.89
|
|||
|
1.24
|
–
|
1.88
|
–
|
–
|
1.12
|
4.78
|
0.82
|
|||
|
19.05
|
0.81
|
–
|
1.42
|
–
|
–
|
0.70
|
18.79
|
4.37
|
1.65
|
|
|
0.89
|
–
|
1.50
|
–
|
–
|
0.79
|
4.24
|
1.56
|
|||
|
1.07
|
–
|
1.68
|
19.05＋0.-04
|
15.88
|
0.94
|
4.36
|
1.48
|
|||
|
1.24
|
19.05
|
1.88
|
—
|
—
|
1.10
|
4.47
|
1.41
|
|||
|
1.47
|
–
|
2.11
|
–
|
—
|
1.25
|
4.37
|
1.35
|
|||
|
1.65
|
–
|
2.28
|
–
|
—
|
1.47
|
4.28
|
1.30
|
|||
|
1.83
|
–
|
2.44
|
—
|
—
|
1.65
|
4.20
|
1.26
|
|||
