Embedded Fin Tube(G Fin Tube)
Embedded fins (G-Fins) are made by winding aluminium or copper strip into a helical groove machined on the outer surface of the tube.
- Fin-to-Tube Bond: Very strong, ensuring reliable performance
- Heat Transfer Efficiency: Excellent, optimized for high thermal conductivity
- Mechanical Resistance: Very good, designed to withstand demanding conditions
- Corrosion Protection: Moderate, suitable for environments with low to moderate corrosiveness
- Temperature Range: Effective up to a maximum of 415°C (779°F)
- Overview
- Specifications
Embedded fins are mechanically embedded into the surface of the tube walls, providing a secure bond that enhances heat transfer efficiency. This design allows embedded fins to withstand higher temperatures compared to L-fins, making them ideal for demanding applications. The robust attachment ensures optimal performance at operating temperatures of up to 415°C (779°F).
However, due to the more complex manufacturing process, embedded fins are generally more costly than wrapped L-fins. Despite the higher cost, they are a preferred choice for applications requiring superior durability and thermal efficiency in high-temperature environments.
|
Sr. No |
Particulars |
Range |
|
1 |
Base Tube Material |
Stainless Steel, Carbon Steel, Alloy Steel, Titanium, Copper, Duplex Stainless Steel, Inconel etc. (all material in the theoretical limit) |
|
2 |
Base Tube OD |
12.70 mm to 38.10 mm |
|
3 |
Base Tube Thickness |
2.11 mm And Above |
|
4 |
Base Tube Length |
500 mm Min To 20000 mm |
|
5 |
Fin Material |
Aluminum, Copper, Stainless Steel, etc. |
|
6 |
Fin Thickness |
0.3mm ,0.35mm, 0.4mm, 0.45mm, 0.55mm, 0.60mm,0.65mm |
|
7 |
Fin Density |
236 FPM (6 FPI ) to 433 FPM ( 11 FPI ) |
|
8 |
Fin Height |
9.8 mm to 16.00 mm |
|
9 |
Bare Ends |
As per Client Requirement |
|
10 |
Manufacturing Capacity |
2,00,000 Meter Per Month |
Manufacturing Process
G Fin Tube (Embedded Fin Tube)
The Embedded Fin Tube, also known as the G Fin Tube, is widely used in applications requiring higher operating temperatures and relatively low-corrosive environments.
This fin tube is produced by embedding a fin strip into a precisely machined groove on the surface of the base tube. Once the fin is securely placed in the groove, a backfilling process is applied to firmly bond the fins to the base tube. This unique manufacturing method ensures a strong, reliable connection between the fin material and the tube, making it one of the best options for achieving efficient heat transfer.
The entire process of grooving, inserting the fin strip, and backfilling is carried out simultaneously in a continuous operation, resulting in superior adherence of the fins. This seamless bond optimizes heat transfer performance, making G Fin Tubes ideal for demanding industrial applications.
How to Choose a Fin Tube for Air Cooled Heat Exchanger?
When choosing fin tubes(Embedded Fin Tube,Extruded Fin Tube or L footed Fin Tube) for your air-cooled heat exchanger, it’s essential to consider the tube size and fin geometry to optimize performance and ease of maintenance.
- Fin Density: Our customer typically use 10 fins per inch, which are widely available and easier for them to clean. Although 11 fins per inch can offer a slight performance boost due to increased surface area, the trade-off in cleaning difficulty often makes 10 fins per inch the preferred choice.
- Tube Specifications: The most commonly used tubes are 1” OD x 14 BWG minimum wall SA-179 tubes. These tubes provide a good balance of durability and thermal efficiency.
- Tube Pitch: The standard tubing pitch is 2.5 inches, though this can be adjusted based on tube outer diameter (OD) and the desired number of tubes per row. Adjusting the pitch also affects airflow dynamics and static pressure, which in turn impacts the selection of fans and motors.
By carefully considering these factors, you can optimize the performance, maintenance, and efficiency of your air-cooled heat exchanger.
Related Products
G’ Fin Tubes, also known as Embedded Fin Tubes, are primarily used in air fin coolers and a wide variety of air-cooled radiators. These tubes are specifically designed for applications where heat transfer occurs at relatively higher temperatures. The embedded design ensures a robust mechanical bond between the fins and the tube, making them ideal for environments where the operating temperature is elevated but the atmosphere is less corrosive to the base tube.
Key Applications:
‘G’ Fin Tubes are widely utilized across several industries, including:
- Process Chemical Plants
- Oil Refineries
- Gas Processing Plants
- Steel Mills
- Power Generation Facilities
- Fertilizer Manufacturing Plants
These industries benefit from the superior heat transfer capabilities and durability of ‘G’ Fin Tubes, especially in conditions that demand efficient thermal performance at higher temperatures.