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Contact name:Jikin Cai
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A179 Finned Tube Heat Exchanger Tube AL 1060 Fin L Type Extruded Type Embeded Type Heat Exchanger Air Cooling
L Type Finned Tube for Heat Exchanger
L Type Finned Tube is a finned tube made of aluminum fin tape or
copper fin tape folded into an L-shaped spiral under tension and
wrapped tightly around the outer surface of the base tube. It is
combined with two different materials.
The tension in the fin strips of the L Type Finned Tube wraps
around the tube, causing the fin feet to press forcefully against
the tube, holding the fins firmly in place.
Manufacturing Process
Fin strips (usually aluminum and copper) are folded into an L shape
and wound under tension on the surface of the base tube. The feet
of the fins are connected together and cover the surface of the
fins.
| Core Tube Materials | |
| Carbon Steel Tubes | A179, A192, SA210 Gr A1/C, A106 Gr B, A333 Gr3 Gr6 Gr8, A334 Gr3 Gr6 Gr8, 09CrCuSb, DIN 17175 St35.8 St45.8, EN 10216 P195 P235 P265, GB/T3087 Gr10 Gr20, GB/T5310 20G 20MnG, |
| Alloy Steel Tubes | A209 T1 T1a,A213 T2 T5 T9 T11 T12 T22 T91,A335 P2 P5 P9 P11 P12 P22 P91,EN 10216-2 13CrMo4-5 10CrMo9-10 15NiCuMoNb5-6-4 |
| Stainless Steel Tubes | TP304/304L, TP316/TP316L TP310/310S TP347/TP347H |
| Copper Tubes | UNS12200/UNS14200/UNS70600, CuNi70/30, CuNi 90/10 |
| Titanium Tubes | Gr. 2 |
| Fin materials | |
| Aluminum (Alu.1100, Alu.1060), Copper, Steel | |
Features of L Type Finned Tube
1. The trapezoidal section formed by the calendering of L Type
Finned Tube for heat exchanger is consistent with the distribution
of heat flow density, the tubes are tightly combined, and the
thermal efficiency is high, which eliminates the contact heat
caused by the gap between the tubes and the finned tube.
resistance, the fin spacing is uniform, and the heat transfer
performance is good.
2. The tube can withstand temperatures up to 150°C and there is no
risk of atmospheric corrosion or thermal stress.
3. The L-type finned tube provides the contact area between the fin
strip and the surface of the tube to protect the tube wall from
atmospheric corrosion.
4. This L TYPE design is much more economical than LL, KL or even
G-embedded types.
5. Maximum operating temperature: 230°C
For a quick quotation, plz send with following requirements
Number of pieces,
base tube: Diameter, thickness, length and material specification.
Fins: material specification, type (solid or serrated), height, thickness, spacing, finned length and unfinned sections. Weld prep details if required.
Delivery period required.
| * These are the most common fin/tube patterns. We have more than 20 different plate fin and tube combinations. Contact me for more information and options. | ||
| Helical Fin Surface (Tube OD – Available Helical Fin Height on the Tube) | ||
| 5/8″ – 3/8″, 1/2″ and 7/16″ | 1″ – 3/8″, 1/2″ , 7/16″ and 5/8″ | 1 1/4″ – 3/8″, 1/2″ , 7/16″ and 5/8″ |
| 15.875mm – 9.525mm, 12.7mm and 11.113mm | 25.4mm – 9.525mm, 12.7mm, 11.113mm and 15.875mm | 31.75mm – 9.525mm, 12.7mm, 11.113mm, and 15.875mm |
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Usages
L Type Finned Tube is usually used in air coolers in petrochemical, power, paper,
tobacco, building heating and other industries as well as heat
exchangers in power plants (electricity, nuclear, thermal and
geothermal power plants).
