Technical Data

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Below is our standard fin tube maximum ranges. If you have a requirment outside of these ranges please contact us with this requirment.

Edge Wound Fin (I-fin)

Tube Size

Max Fin Height

Max FPI

Max Temperature

1/4"

0.1875

18

3/8"

0.3125

18

250 degrees F for Alum, Cu, & S.S. fins - 350 degrees F for Carbon Steel fins

1/2"

0.375

16

5/8"

0.4375

16

3/4"

0.5

14

7/8"

0.5

14

1"

0.625

12

1.25"

0.625

10

1.5"

0.75

10

 

Imbedded (G-Fin)

Tube Size

Max Fin Height

Max FPI

Max Temperature

5/8"

0.4375

11 FPI for AL, Cu - 10 FPI for Carbon Steel

650 degrees F for Alum & Cu fins- 1000 degrees F for Carbon Steel fins                                                                                                             

3/4"

0.5

1"

0.625

1.25"

0.625

1.5"

0.625

 

Shoulder Tension "L-Footed" Fin

Tube Size

Max Fin Height

Max FPI

Max Temperature

5/8"

0.4375

14

3/4"

0.5

14

350- 450 degrees F

1"

0.625

12

1.25"

0.625

12

1.5"

0.625

12

 

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

1/2"

0.375

16

5/8"

0.4375

16

3/4"

0.5

14

7/8"

0.5

14

1"

0.625

12

1.25"

0.625

10

1.5"

0.75

10

 

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