2021 New Style Carbon Steel Heat Exchanger Tubes - L, LL, KL Finned Tube(Wound Finned Tubes) – Datang

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We constantly believe that one's character decides products' high quality, the details decides products' high-quality ,together with the REALISTIC,EFFICIENT AND INNOVATIVE crew spirit for Cooling Fin Tube , Electric Fin Tube , Brazed Aluminum Heat Exchanger , Our final target is "To consider the most effective, To be the Best". Please experience cost-free to call with us if you have any prerequisites.
2021 New Style Carbon Steel Heat Exchanger Tubes - L, LL, KL Finned Tube(Wound Finned Tubes) – Datang Detail:

L finned tubes, LL (Double L) finned tubes, KL finned tubes (knurled fin tubes) (with aluminum fins)

Fins: Aluminum ASTM B209 Al 1060; ASTM B209 Al 1100, 1050A.

Fields of application

● the petroleum, chemical and petrochemical process industries

● natural gas treatment

● the steel industry: blast furnace and converter systems

● power generation

● air conditioning (Freon, ammonia, propane)

● incineration of household refuse

● compressor coolers, etc.

L-foot tension wound finned tubes consist of thin aluminum fin strip tightly wound helically around the tube circumference. Tube materials are carbon steel, stainless stell, or brass. A foot, 1/16″ wide, is first formed on one side of the fin strip (thus, the name “L-Foot”). The strip wound tightly around the tube, with the foort bearing on the tube outer suface. A typical fin spacing is 10 fins/in of tube length (can be varied). Tension in the fin strip as it is wrapped around the tube serves to hold the fin firmly in place.

Wound Finned Tube (1)
Wound Finned Tube (2)

LL-Fin Tube is manufactured in the same way as the “L” finned tube type except that the fin foot is overlapped to completely enclose the base tube thereby giving excellent corrosion resistance. This type of finned tube is often used as an alternative to the more expensive extruded type fin in corrosive environments.

KL-Fin Tube is manufactured exactly as the ‘L’ finned tube except that the base tube is knurled before application of the fin foot. After application, the fin foot is knurled into the corresponding knurling on the base tube thereby enhancing the bond between the fin and tube, resulting in improved heat transfer characteristics.

*Maximum working temperature: 260 deg C.

*Atmospheric corrosion resistance: Accpetable

*Mechanical resistance: Acceptable

*Fin materials: Aluminium, Copper

*Tube materials: Any theoretical limit

Stainless Steel, Carbon Steel, Alloy Steel, Titanium, Copper, Duplex Stainless Steel, Inconel etc. (all material in the theoretical limit)

1. Base Tube Outside Diameter: 12.70 mm to 38.10 mm

2. Base Tube Thickness: 1.25mm And Above

3. Base Tube Length: 500 mm Min To 15000 mm

4. Fin Material: Aluminum, Copper, Stainless Steel, etc.

5. Fin Thickness: 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.55mm, 0.60mm, 0.65mm

6. Fin Density: 236 FPM (6 FPI) to 433 FPM (11 FPI)

7. Fin Height: 9.8 mm to 16.00 mm


Product detail pictures:

2021 New Style Carbon Steel Heat Exchanger Tubes - L, LL, KL Finned Tube(Wound Finned Tubes)  – Datang detail pictures

2021 New Style Carbon Steel Heat Exchanger Tubes - L, LL, KL Finned Tube(Wound Finned Tubes)  – Datang detail pictures


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We always believe that one's character decides products' quality, the details decides products' quality ,with the REALISTIC,EFFICIENT AND INNOVATIVE team spirit for 2021 New Style Carbon Steel Heat Exchanger Tubes - L, LL, KL Finned Tube(Wound Finned Tubes) – Datang , The product will supply to all over the world, such as: UK, Senegal, Uruguay, Our company mission is that providing high quality and beautiful products with reasonable price and strive to gain 100% good reputation from our clients. We believe Profession achieves excellence! We welcome you to cooperate with us and grow up together.
  • High production efficiency and good product quality, fast delivery and completed after-sale protection, a right choice, a best choice.
    5 Stars By Ivy from panama - 2018.11.04 10:32
    This manufacturer can keep improving and perfecting products and service, it is in line with the rules of market competition, a competitive company.
    5 Stars By Federico Michael Di Marco from Birmingham - 2017.09.28 18:29
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