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LL Fin Tubes Supplier
Table of Content
The LL-Foot Fin Tube, also called the Overlapped L-type fin tube, is widely used in heat exchangers. It features a base tube with fins made by overlapping L-shaped strips onto the surface. These fins are attached in a way that forms an "LL" pattern, providing enhanced heat transfer and increased protection against corrosion.
LL fin tube, also known as the Overlapped L fin tube, is similar to the L fin tube but with overlapping fin feet for added corrosion protection. The fins are helically wound around the base tube, creating a strong mechanical bond that enhances heat transfer. It is a cost-effective alternative to extruded fin tubes, commonly used in corrosive environments.
The process of producing LL-Foot Fin Tubes includes these steps:
- Preparation: The base tube, typically made from materials like copper, stainless steel, or carbon steel, is cut to the desired length and prepared for finning.
- Finning: L-shaped fin strips, made from materials like aluminum or copper, are overlapped and wrapped around the tube to enhance heat transfer.
- Bonding: The fins are securely attached to the tube using mechanical bonding, soldering, or brazing, ensuring a strong and durable connection.
| Base Tube O.D （mm） | Base Tube Thickness (mm) | Fin Height （mm） | Fin Thickness（mm） | Fin Pitch（mm） | ||
| 15.88 ~50.8 | 1.0 ~3.0 | 6.35 ~ 25.4 | 0.3 ~0.5 | 2.1~ 6.0 | ||
| Base Tube Material | Fin Material | Tube Length (Mtr) | ||||
| Carbon Steel ,Alloy Steel ,Stainless Steel | Aluminum, Carbon Steel | ≤ 15Mtrs | ||||
Applications of LL Finned Tubes
LL Finned Tubes, including tension wound, embedded, and extruded types, are widely used in various industries. Key applications include:
| Heat Exchangers: Commonly found in power plants, including electric, nuclear, thermal, and geothermal facilities. |
| Steam Condensate Systems: Efficient in managing steam condensation processes. |
| Chemical and Petrochemical Industry: Essential for various heat exchange processes. |
| Food Processing and Refrigeration: Used in maintaining temperature control and processing. |
| Industrial Applications: Effective in environments like steel mills, incinerators, and gas compression facilities. |
FAQ
LL fin tubes are specialized finned tubes designed for efficient heat transfer to air, water, or chemicals. They are typically made of aluminum or copper.