KL Fin Tube

“KL” FIN TUBE

“KL” Fin Tube is also called “knurled Finned Tube”. Before fin winding, the knurling is performed on the outside surface of the base tube. After winding, the root of the L foot of aluminum fin is subjected to secondary knurling to strengthen the bond between the fin and tube. Knurling and winding are performed simultaneously. Contact area increased by about 50%.

FEATURES:

1. The highest applicable temperature is ≤260°C

2. The contact area between the fin and the tube is large, and the bond is tight and firm.

3. Good resistance to atmospheric corrosion and stable long-term performance

4. The contact thermal resistance is small, the heat transfer performance is high, and it can withstand repeated cold and heat cycles without loosening.

DIMENSION AND MATERIAL

The following table shows Simcan’s manufacturing capabilities for “KL” Fin Tube :

PRODUCTION CAPACITY

Simcan has Total seven(7) “KL” Fin Tube finning lines, monthly production capacity is 200,000 meters in total.

APPLICAITONS

Simcan's “KL” Fin Tubes are mainly used in air cooled heat exchangers (fin fan cooler, air fin ) or air heaters in petrochemical, power generation, paper, tobacco, building heating system, air conditioning and food industries.

FAQ

Q1.Is the number of fins as high as possible?

A:1.When the heat transfer area of the fin is doubled, the heat transfer coefficient cannot be doubled, it will be decreased on the contrary, generally by (0.9 to 0.7) times, and the higher the fin, the larger the decrease, worst case is to 0.5. Resulting in the higher the fins, the lower the efficiency and cost effective.

2.Larger fin height or density will cause easier ash accumulation, and more difficult on ash cleaning.

3.Further more it will increase the fabrication cost and difficulties.

Q2.What is the referenced codes and standards?

API661

Material Requisition, drawings or Technical Agreement

Q3.How do you pack the products

A:Each package is designed and made according to seaworthy packing standard and clients’ handling and lifting capability.

Finned tubes will be packed into steel frameworks and wrapped with weather proof PE film and plywood board covering up. In addition, each row of finned tubes will be isolated from adjacent with EPE(Expandable Polyethylene) foam to prevent rigid impact during transportation. For all exporting packages, we only use plywood instead of wood for fumigation free purpose.

Q4:How do you guarantee the quality?

A:We are ISO certified company and we maintain strict controls according to our specific written procedures and client specifications during all phases of manufacturing of our products ensuring full materials traceability and top quality. Besides, inspection activities carried out by world reputable third party such as TÜV, BV, SGS, Lloyd's, ABS, Intertek(Moody) etc. is available on call.

Q5:Do you have design capability?

A:Yes, we could develop the shop drawings and submit for clients’ approval.

Q6:How do you handle the documentation?

A:As a professional supplier, Simcan does not only manufactures products but also has strong capability on preparing and submitting documents as listed below but not limited to:

Before Fabrication

Design and Fabrication Schedule

Drawings and data

Fabrication Procedures including WPS, PQR

Inspection and Test Plan (ITP)

During Fabrication

Daily, weekly or monthly progress report

After Fabrication

A complete set of final archive including:

Raw Material Mill Certificates

Product Conformity Certificates

Inspection Reports including Material Receipt Inspection Report, Test Report etc.

Packing List and Proforma Invoice

Certificate of Origin or any other documentation mandatory for clients’ customs clearance or tax preference