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DELLOK KL Type Tension Wound Aluminum Knurled Embedded Fin Tube

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DELLOK KL Type Tension Wound Aluminum Knurled Embedded Fin Tube
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Tube Material: Aluminum, Carbon Steel, Stainless Steel, Alloy Steel, Copper Etc...
Tube OD :: 12.7 Min.
Tube Length :: No Limit
Fin Height: ~16 Mm
Fin Thickness:: ~0.4mm
Fin Pitch :: 12FPI Min.
High Light:

304L Embedded Fin Tube


12FPI Cooling Tube


KL Type Embedded Fin Tube

Basic Infomation
Place of Origin: China
Brand Name: DELLOK
Certification: CE. ISO,EN10204. 3.1 Cert.
Model Number: Type KL fin tube
Payment & Shipping Terms
Packaging Details: (1)Steel frame case sealed by plywoods with each end capped; (2)Solid fumigated wooden box with each end of capped.
Delivery Time: Ex-work with 1 month on receipt of order.
Payment Terms: L/C, T/T
Supply Ability: 60000 meters month
Product Description

Tension Wound Aluminum 0.4mm Knurled Embedded Fin Tube


Specifications of Type KL fin tubes

Tube OD : 12.7 Min.

Tube Length : no limit

Fin Height : ~16 mm

Fin Thickness: ~0.4mm

Fin Pitch : 12FPI min.

General KL-type production capacity

Finning Facility: 7 finning machines;

Daily capacity up to 7000 meters;

Fin type: Solid plain

Tension wound type L- knurled(KL) aluminum fin Cooling tube, OD1''X14bwg


Manufacturing process:

The fin strip (normally aluminum and copper) is folded into an L SHAPE and wound onto the base tube surface under tension. The feet of the fins are joined together and cover the finned surface. All the goods shall be Zinc or Aluminum metalized applied by an electro spray arc system coating. The desiccants are put into each package for continental transportation as well. We provide Tube Support Box, Clamp or Spacer Box (Material: Aluminum, Zinc and Stainless Steel). The goods will be delivered when tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of L Type Tension Wound Finned Tube.



The common application fields are:

  1. Heat exchangers units for power plant(electric, nuclear, thermal and geothermal power plants);

  2. High corrosive systems (condensers, evaporators, sea water desalinations, fertilizing, urea systems, ammonia, gas, corrosive acids);

  3. The petroleum, chemical and petrochemical industries;

  4. The food processing and refrigeration industries;

  5. Natural gas treatment;


KL Type Tension Wound Tube is combined with two different materials.



General Materials

Popular ASTM Materials

Core Tube Material

Carbon steel, low-alloy steel, stainless steel, brass, copper, cooper-nickel alloys, aluminum bronze, nickel alloys.

1. Carbon Steel : A179, A192,SA210 Gr A1/C,A106 Gr B

2. Stainless Steel : TP304/304L,TP316/TP316L

3. Copper: UNS12200/UNS14200/UNS70600,

CuNi70/30,CuNi 90/10

4. Titanium : B338 Gr 2

5. Aluminum : Alu.1060,Alu.6063

Fins Material

Aluminum & Copper & Steel

1. Aluminum(Alu.1100,,Alu.1050, Alu.1060,Alu.1070)

2. Copper.

3. Steel


All dimensions are in Inches and specification upon your requests.

Tube OD

Fin Height

Fin Thickness

Fins per Pitch



.015/.016/ .020

6, 7, 8, 9, 10, 11, 12



.015/.016/ .020

6, 7, 8, 9, 10, 11, 12



.015/.016/ .020

6, 7, 8, 9, 10, 11, 12

1 1/4


.015/.016/ .020

6, 7, 8, 9, 10, 11, 12

1 1/2


.015/.016/ .020

6, 7, 8, 9, 10, 11, 12

Pease email us for more information.


Competitive Advantage:

  1. We have more than 10,000 square meters workshop, including 7 finning machines, daily production capacity up to 5,000 meters.

  2. The finning machines are designed and assembled by ourselves (Reliance) and we can offer you finning machines and all accessories etc...

  3. This method of manufacturing L tension type enables us to place the finning on a very thin-walled tube with is particularly desirable when using high value alloys (titanium, stainless, copper, nickel).The tube can withstand a temperature of up to 150°C without the risk of atmospheric corrosion or thermal stress.

  4. KL TYPE fin tubes provide contact area between the fin strip and the tubes surface and protect the tube wall from atmosphere corrosion. This KL TYPE design is much economical than KL, even G-embedded type. 

DELLOK KL Type Tension Wound Aluminum Knurled Embedded Fin Tube 0DELLOK KL Type Tension Wound Aluminum Knurled Embedded Fin Tube 1DELLOK KL Type Tension Wound Aluminum Knurled Embedded Fin Tube 2


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Get in touch with us
Contact Person : Pax Yang
Tel : +862569521609
Fax : 86-25-6952-5709
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