Project Description
Product Name: A179 Seamless Finned Tube Extruded Type for Air Coolers
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The seamless extruded finned tube is a highly efficient heat exchange element that tightly integrates fins with the base tube (usually a seamless steel tube) through a mechanical extrusion process.
Its core feature is the seamless connection between the fins and the base tube, eliminating contact thermal resistance inherent in traditional processes and thus achieving rapid heat transfer.
Extruded aluminum fin tube size and material:
| Extruded aluminum fin tube size and material | ||
| Tube OD | 10~51 (mm) | 0.4”~2” |
| Tube Wall Thk | 1.65~3.0 (mm) | 0.065”~0.118” |
| Tube Length | ≤18,500 (mm) | ≤60.7 ft |
| Fin Thk | 0.3~1.2 (mm) | 0.012”~0.047” |
| Fin Height | 5~16 (mm) | 0.2”~0.63” |
| Fin Pitch | 100~555 (mm) | 3~14 FPI |
| Fin Type | Extruded | |
| Material Combinations | ||
| Fin Material | Aluminum (most common grade:Alu.1100, Alu.1060, Alu. 6063) | |
| Copper | ||
| Tube Material | C.S. (most common grade: A179, A192,SA210 GrA1/C,A106 Gr B ) | |
| S.S. (most common grade: TP304, 316, 321, 347,A789) | ||
| Copper (most common grade:UNS12200,14200, 70600, CuNi70/30, CuNi 90/10) | ||
| Titanium (most common grade: B338Gr2) | ||
| Applied Temperature | 300°C | |
| Type of Service | Medium temperature, severe atmospheric corrosive environment. | |
In air coolers, this finned tube acts as the core heat transfer component, operating based on the synergistic effect of heat conduction, convective heat transfer, and forced ventilation.
When the hot fluid flowing inside the tube (such as steam, hot water, or process gas) releases heat, the heat is directly conducted through the tube wall to the tightly connected fins; the fins are arranged regularly around the base tube, significantly expanding the contact area with the air.
Subsequently, a fan drives air to flow across the fin surface by forced convection, and the high-temperature fins transfer heat to the low-temperature air, thereby cooling the hot fluid.
Due to the integrated design of the fins and the base tube, heat can be uniformly diffused from the tube wall to the fin surface in a very short time, with the temperature difference usually controlled within 1-3°C, significantly improving heat exchange efficiency.
As a core heat transfer element in air coolers, the extruded seamless finned tube significantly improves heat dissipation efficiency and system performance through its unique structural design and process technology.
The A179 Seamless Finned Tube Extruded Type achieves a seamless connection between the fins and the base tube through an integrated extrusion molding process. Heat is rapidly conducted from the internal medium to the fin surface, and through the combined effect of increased heat dissipation area (up to 3-10 times that of a bare tube) and forced air flow, efficient heat exchange is achieved.
In air coolers, it replaces traditional bare tubes, solving the problems of small heat dissipation area and slow cooling speed, and is suitable for cooling high-temperature process media (such as lubricating oil and gases).
A179 Seamless Finned Tube Extruded Type for Air Coolers – Key Advantages
High Efficiency Heat Dissipation and Energy Saving:
The fin design (such as serrated or corrugated) optimizes airflow, reduces resistance, and enhances turbulence, improving convective heat transfer efficiency; the integrated molding eliminates contact thermal resistance, increasing heat transfer efficiency by more than 30% compared to traditional methods, while also reducing fan energy consumption.
Robust Structure and Durability:
Made of materials such as aluminum alloy, copper alloy, or stainless steel, combined with the extrusion process, ensuring a tight bond between the fins and the base tube. It is vibration-resistant and wear-resistant, and its service life is extended through anti-corrosion treatment (such as anodizing).
Adaptable to Complex Environments:
Its corrosion resistance and high temperature and pressure resistance make it suitable for harsh working conditions in chemical and power industries. Its compact structure and easy installation reduce maintenance costs.
