Finned Tube Data
Below is our standard fin tube maximum ranges. If you have a requirement outside of these ranges please contact us with this requirement.
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Edge Wound Fin (I-fin)
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Tube Size
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Max Fin Height
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Max FPI
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Max Temperature
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1/4"
|
0.1875
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18
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|
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3/8"
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0.3125
|
18
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250 degrees F for Alum, Cu, & S.S. fins - 350 degrees F for Carbon Steel fins
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1/2"
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0.375
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16
|
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5/8"
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0.4375
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16
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3/4"
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0.5
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14
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7/8"
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0.5
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14
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1"
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0.625
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12
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|
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1.25"
|
0.625
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10
|
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1.5"
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0.75
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10
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Imbedded (G-Fin)
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Tube Size
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Max Fin Height
|
Max FPI
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Max Temperature
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5/8"
|
0.4375
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11 FPI for AL, Cu - 10 FPI for Carbon Steel
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650 degrees F for Alum & Cu fins- 1000 degrees F for Carbon Steel fins
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3/4"
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0.5
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1"
|
0.625
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1.25"
|
0.625
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|
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1.5"
|
0.625
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Shoulder Tension "L-Footed" Fin
|
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Tube Size
|
Max Fin Height
|
Max FPI
|
Max Temperature
|
|
5/8"
|
0.4375
|
14
|
|
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3/4"
|
0.5
|
14
|
350- 450 degrees F
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|
1"
|
0.625
|
12
|
|
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1.25"
|
0.625
|
12
|
|
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1.5"
|
0.625
|
12
|
|
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|
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|
|
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|
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Brazed Edge Wound Fin (I-fin)
|
|
Tube Size
|
Max Fin Height
|
Max FPI
|
Max Temperature
|
|
1/4"
|
0.1875
|
18
|
|
|
3/8"
|
0.3125
|
18
|
1500 degrees F
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|
1/2"
|
0.375
|
16
|
|
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5/8"
|
0.4375
|
16
|
|
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3/4"
|
0.5
|
14
|
|
|
7/8"
|
0.5
|
14
|
|
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1"
|
0.625
|
12
|
|
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1.25"
|
0.625
|
10
|
|
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1.5"
|
0.75
|
10
|
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