Crimped Fin Tube
Crimped fin tubes for enhanced heat transfer and mechanical strength.
Embedded fins (G-Fins) are made by winding aluminium or copper strip into a helical groove machined on the outer surface of the tube.
The strip winding technology provides different types of fins: L-Fin, LL-Fin, KL-Fin.
Embedded fins (G-Fins) are made by winding aluminium or copper strip into a helical groove machined on the outer surface of the tube.
| Fins | SB209 - B209 Aluminium Alloy 1050 or 1060 | SB75 - B75 Copper |
| Fins | SB209 - B209 Aluminium Alloy 1050 or 1060 | SB75 - B75 Copper |
| Tube | SA179 - A179 Carbon Steel | SA213 - A213 | SA249 - A249 - Stainless Steel | SB75 - B75 Copper | SB111 - B111 Copper Alloy |
| Fin Types | Length | Tube Diameter | Thickness | Finned Tube Diameter | Fins Density | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (m) | (ft) | (mm) | (inch) | (mm) | (BWG) | (mm) | (inch) | (fins/m) | (fins/inch) | (fins/m) | |
|
Extruded |
0,3 ÷ 18 |
1 ÷ 59 |
15,88 ÷ 50,8 |
5/8” ÷ 2” |
0,889 ÷ 3,76 |
20 ÷ 9 |
38,10 ÷ 76,20 |
1 ½” ÷ 3” |
236 ÷ 472 |
6 ÷ 12 |
|
|
L-Fin |
|||||||||||
|
LL-Fin |
|||||||||||
|
KL-Fin |
|||||||||||
|
G-Fin |
|||||||||||
| Technical Specifications | |||
|---|---|---|---|
| Fin Types | Corrosion | Mechanical | |
| Working Temp. | |||
| Extruded | 280 ÷ 300 °C | ↑↑ | ↑↑ |
| L-Fin | 135 ÷ 155 °C | ↑ | ↓↓ |
| LL-Fin | 155 ÷ 165 °C | ↑ | ↓ |
| KL-Fin | 165 ÷ 185 °C | ↑ | ↑ |
| G-Fin | 380 ÷ 420 °C | ↓ | ↑ |
G Type embedded fin tubes are widely used in applications requiring efficient heat transfer and robust performance, including:
G Type embedded fin tubes are a specific kind of heat exchanger component that involves embedding a metal fin into the surface of a base tube. This design enhances heat transfer efficiency and durability, making it suitable for high-temperature and high-pressure applications.
The process begins with selecting a suitable base tube, typically made from materials such as carbon steel, stainless steel, or alloy steel. The tube is cleaned and prepared to ensure a smooth and contamination-free surface for the subsequent steps.
A specialized machine is used to cut a precise G-shaped groove into the surface of the base tube. The groove typically has a specific depth and width to accommodate the fin strip securely.
A continuous metal strip, usually made of aluminum or copper, is inserted into the G-shaped groove. The strip is carefully aligned and positioned to ensure it fits snugly into the groove.
A rolling tool or wheel is employed to press the fin strip into the groove. The rolling action deforms the metal around the groove, pushing it back over the fin strip and securing it in place.
After the fin strip is embedded, the finned tube undergoes a series of finishing processes. This includes trimming any excess material, smoothing the edges, and performing quality checks to ensure the fins are evenly spaced and properly embedded.
The finished G Type embedded fin tube is subjected to rigorous testing and quality control procedures. This includes checking the mechanical strength, thermal conductivity, and overall integrity of the tube.
Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.
Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.
Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.
The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.
Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.
The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.
When you partner with Sunny Steel, you can stop worrying about meeting deadlines thanks to our responsive and timely service. You'll also say goodbye to unnecessary shopping around. Instead, you'll get white glove service from an expert who understands your needs and can get you the materials you need quickly.
