Be.Tube Srl offers different finned tubes: tension wound finned tubes, embedded finned tubes and extruded finned tubes.
Tension wound finned tubes are formed by winding a strip made of aluminium or copper around the tube under tension. The strip winding technology provides different types of fins: L-Fin, LL-Fin, KL-Fin.
Embedded fins (G-Fins) are made by winding aluminium or copper strip into a helical groove machined on the outer surface of the tube.
| G-fin | L-fin |
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| LL-fin | KL-fin |
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Extruded finned tubes are bimetallic tubes whose outer aluminium surface is finned by cold plastic deformation.
| Extruded-fin |
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| Fin Material – Extruded-fin Finned Tubes | ||||
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| Fins | SB209 – B209 Aluminium Alloy 1050 or 1060 | SB75 – B75 Copper | ||
| Notes | For different materials please contact our technical office | |||
| Fin Material – G-fin; L-fin; LL-fin; KL-fin Finned Tubes | ||||
|---|---|---|---|---|
| Fins | EN573-3 Aluminium Alloy 1050 or 1060 | SB152 – B152 Copper | ||
| Notes | For different materials please contact our technical office | |||
| Tube Material – G-fin; L-fin; LL-fin; KL-fin; Extruded-fin Finned Tubes | ||||
|---|---|---|---|---|
| Tube | SA179 – A179 Carbon Steel | SA213 – A213 Stainless Steel | SB75 – B75 Copper | SB111 – B111 Copper Alloy |
| Notes | For different materials please contact our technical office | |||
| Technical Specifications – G-fin; L-fin; LL-fin; KL-fin; Extruded-fin Finned Tubes | |||||||||||||||||||||||||
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| Fin Types | Length | Tube Diameter | Thickness | Finned Tube Diameter | Fins Density | ||||||||||||||||||||
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| LL-Fin | |||||||||||||||||||||||||
| KL-Fin | |||||||||||||||||||||||||
| G-Fin | |||||||||||||||||||||||||
| Extruded | |||||||||||||||||||||||||
| Technical Specifications – G-fin; L-fin; LL-fin; KL-fin; Extruded-fin Finned Tubes | ||||||
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| Fin Types | Working Temp. |
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| L-Fin | 135 ÷ 155 °C |
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| LL-Fin | 155 ÷ 165 °C |
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| KL-Fin | 165 ÷ 185 °C |
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| G-Fin | 380 ÷ 420 °C |
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| Extruded | 280 ÷ 300 °C |
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| Inspections and Tests G-fin; L-fin; LL-fin; KL-fin; Extruded-fin Finned Tubes |
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| Chemical Composition |
| Mechanical Properties |
| Hydrostatic Test |
| Pneumatic Test |
| Boroscopic Inspection |
| Eddy Current Test |
| Tensile Test (only for bimetallic tube) |
APPLICATIONS – G-FIN; L-FIN; LL-FIN; KL-FIN; EXTRUDED-FIN FINNED TUBES
Tension wound finned tubes, embedded finned tubes and extruded finned tubes are main devices for air coolers and the common application fields are:
- Heat exchangers for power plants (electric, nuclear, thermal and geothermal power plants)
- Steam condensate systems
- Chemical and petrochemical industry
- Food processing plants and refrigeration technology
- Industrial (steel mills, incinerators, gas compression facilities).
