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

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

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

Product Details:
Place of Origin: China.
Brand Name: Reliance
Certification: CE,ISO...
Model Number: Type KL fin tube
Payment & Shipping Terms:
Minimum Order Quantity: N/A
Price: N/A
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 after order.
Payment Terms: T/T, L/C
Supply Ability: Daily capacity up to 7,000 Meters
Detailed Product Description
Compamy Type M: Manufacturer & Exporter Fin Tube Type: Knurled Fin Tubes/KL Type Fin Tube
Tube Material: Aluminum, Carbon Steel, Stainless Steel, Alloy Steel, Copper Etc... Fin Material: Aluminum, Copper And Steel
Tube OD Min: 0.5'' Tube OD Max: 2''
Fin Height: 5/8'' Tube Length: No Limit
Fin Thickness: 0.4mm Average Tube Support: Alu./ Stainless Steel / Zinc
High Light:

finned tube



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



General KL-type production capacity

 Specifications of Type KL fin tubes

Finning Facility: 7 finning machines;

Daily capacity up to 7000 meters;

Fin type: Solid plain

Tube OD       : 12.7 Min.

Tube Length : no limit

Fin Height     : ~16 mm

Fin Thickness: ~0.4mm 

Fin Pitch        : 12FPI min.


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.



Surface Protection

Both bare ends shall be Zinc or Aluminum metalized applied by an electro spray arc system coating.


Acceptance Criteria

API Standard 661(Air-Cooled Heat Exchangers for General Refinery Service) or the delivery conditions (TDC).

Tension wound type L- knurled(KL) aluminum fin Cooling tube, OD1''X14bwg 0


Tube Support Box, Clamp or Spacer Box (Material: Aluminum, Zinc and Stainless Steel).


Delivery Condition

Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of KL Type Tension Wound Finned Tube.



The desiccants are put into each package for continental transportation as well.




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.


 Items 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. Tension wound type L- knurled(KL) aluminum fin Cooling tube, OD1''X14bwg 1

Contact Details
Jiangyin Reliance International Trade Co., Ltd

Contact Person: Ms. Lucy

Tel: +8613812020947

Send your inquiry directly to us (0 / 3000)