dtfinnedtube.com
Longitudinal Finned Tube manufacturer Datang is 20 Years Factory Fin Tube Manufacturers and Supplier, and can provide ODM and OEM services.
Longitudinal finned tube is a component that increases the heat exchange area by welding metal fins on the surface of the base tube. The fins are arranged perpendicular to the axis of the base tube and are mainly used to enhance the heat exchange efficiency.
Structural features of longitudinal finned tubes
Fin direction: The fins are arranged perpendicular to the axis of the base tube. This structure can guide the fluid to generate turbulence, increase the contact area between the fluid and the fins, and thus improve the heat exchange efficiency.
Manufacturing process: High-frequency welding technology is usually used to firmly weld the fins to the base tube to ensure heat transfer efficiency and structural strength.
Materials and Specifications for Longitudinal Finned Tubes
| Category | Materials/Specifications | Remarks |
|---|---|---|
| Base Tube Materials | • Carbon steel (e.g., 10#, 20#) • Stainless steel (e.g., 304, 316L, 2205) • Copper (e.g., T2) • Alloy steel (e.g., 16Mn, 12Cr5MoG) |
Carbon steel for general industrial use; stainless steel for corrosion resistance; copper for high thermal conductivity applications |
| Fin Materials | • Aluminum (e.g., 1060, 1100) • Copper (e.g., T2) • Steel (e.g., carbon steel) • Stainless steel |
Aluminum preferred for lightweight efficiency; copper and steel for enhanced strength and heat transfer |
| Specifications | Base Tube Outer Diameter (OD): 25–219 mm | Standard range for industrial designs |
| Fin Height: 5–30 mm | Optimized for heat exchange area | |
| Fin Thickness: 0.5–4.0 mm | Adjustable for durability and thermal performance | |
| Fin Pitch (Spacing): 3.5–40 mm | Customizable to prevent dust accumulation or enhance efficiency | |
| Length: Up to 18 m (customizable) | Standard maximum length; extendable per project needs |
Application scenarios of longitudinal finned tubes
Mainly used in scenarios that require high turbulence or long-distance heat transfer, such as industrial heating, cooling equipment and waste heat recovery systems, especially in the fields of chemical industry and power.
