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What is KLM Finned Tube?
KLM Finned Tube, also known as knurled L-fin tube and KL-type fin tube, features knurled outer surfaces on the base tube. After wrapping, the base of the L-shaped aluminum fins undergoes a secondary rolling process to strengthen contact between the tube and the fins. This increases the contact area by approximately 50%, reduces contact thermal resistance, and improves heat transfer performance. It can withstand repeated hot and cold cycles without loosening.
KLM Finned Tube, also known as aluminum KL-type fin tube, is an aluminum finned tube used in air heat exchangers. It features zero contact thermal resistance, high heat transfer efficiency, light weight, and strong corrosion resistance. Models include KL-1, KL-2, and KL-3, each of which can be configured to meet different specifications based on the number of rows, surface tube count, and effective fin length.
Advantages of KLM Finned Tube:
1. High heat transfer performance and low contact thermal resistance.
2. Large contact area between the fins and the tubes, ensuring a tight and secure fit. 3. Excellent atmospheric corrosion resistance and stable long-term performance.
KLM Finned Tube Structural Features
Process: Fins are formed on the base tube surface through knurling or winding processes. The fins seamlessly bond to the tube, ensuring a large contact area and a tight fit.
Material: Aluminum alloy is used for strong corrosion resistance and stable long-term performance.
KLM Finned Tube Applications:
Suitable for air cooling (wet/dry) and heating, operating temperatures ≤ 250°C and pressures ≤ 3.2 MPa.
KLM Finned Tube utilizes a winding process, offering excellent production efficiency, uniform fin spacing, excellent heat transfer, a high fin ratio, and protection from atmospheric corrosion.
KLM Finned Tube Applications: Primarily used in air coolers and air heaters in the petrochemical, power, paper, and building heating industries, as well as in spray drying systems for starch and other food industries.
Datang Fin Tube Technical Parameters
| PRODUCT | TYPE | TUBE MATERIAL | FIN MATERIAL | TUBE SIZE | FIN SIZE |
| Heat Exchanger Finned Tube | Extruded Fin Tube | All Kind of Material can be applied | Aluminum A1100 | 15.88~50.8 | 7~11.5FPI |
| Fin Height Max 16mmH | |||||
| L-Foot Fin Tube | All Kind of Material can be applied | Copper C1100, C1220 | 12.70~50.8 | 7~11.5FPI | |
| (Wrap On Type) | Fin Height Max 16mmH | ||||
| G-Fin Tube (Embedded Type) | Aluminum A1100, A1050, A1060 | ||||
| High Frequency Welded Finned Tube | A179 Carbon Steel Tube | Carbon Steel Tube | 12.70~160 | 1.5~7FPI | |
| Edelstahl-Rohr | Edelstahl-Rohr | 0.8~3.2mm. Dicke | |||
| Alloy Steel Material | Alloy Steel Material | ||||
| Integral Copper & Copper Alloy High Finned Tube | C12200, C11000, C70600 | C12200, C11000, C70600 | 15.88~22.23 | 5~9FPI | |
| Max 12mm. H | |||||
| Oval Finned Tube | Carbon Steel Tube | Carbon Steel Tube | All Size Available | 5~15FPI | |
| Edelstahl-Rohr | Edelstahl-Rohr | ||||
| Alloy Steel Material | Alloy Steel Material | ||||
| Kupfer & Copper Alloy Tube | Kupfer & Copper Alloy Tube | ||||
| Monometallic Fin Tube | Rohr mit niedriger Flosse | Kohlenstoffstahl, Edelstahl, titanium, Kupfer, brass, nickel alloy, etc. | — | 9.52~40 | 12, 16, 19 28 FPI, etc. |
| Turbo-C Tube | |||||
| Turbo-E Tube | |||||
| Corrugated Tube | All Kind of Material | — | 6.35~40 | 2~9FPI |
