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Contact name:Jikin Cai
Yuhong Group Co.,Ltd |
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ASTM A210 / ASME SA210 GR. A Carbon Steel HFW Serrated Finned Tube
HFW Serrated Finned Tubes short for high frequency welded helical spiral serrated finned tube. The finned tubes are created by wrapping a thin strip of metal around the base tube in a helical pattern and then serrating the fins to increase the surface area for heat transfer. The serrations also help to disrupt the boundary layer and improve heat transfer efficiency. High frequency welding is used to bond the fins to the base tube, creating a strong and durable connection. The resulting finned tube can provide improved heat transfer performance compared to smooth tubes, making them ideal for applications where high efficiency is required.
| Yuhong Group's Welded Helical Serrated Finned Tubes | |
| Weld Process | GMAW |
| Tube/Pipe Size | 1.00″ to 12.75″ outside diameter |
| Fin Height | 0.375″ to 1.25″ |
| Fin Segment Width | 5/32″ or 5/16″ |
| Fin Thickness | 20ga (.035″) to 16ga (.060″) |
| Fin Pitch | 1 to 7 fins per inch |
| Materials | Any material combination that can be arc welded |
| Tube Length | No practical limit |
What's the difference between welded solid finned tubes and welded serrated finned tubes?
The main difference between them is in the design of the fins.
1. Welded solid finned tubes have fins that are solid and continuous along the length of the tube. These fins provide a large surface area for heat transfer, which can improve the efficiency of the heat exchanger. However, the solid fins can also create a higher pressure drop compared to serrated fins.
2. welded serrated finned tubes have fins that are serrated or notched along their length. These serrations help to disrupt the boundary layer and improve heat transfer efficiency. Serrated fins can also provide a lower pressure drop compared to solid fins.
The advantages of HFW (High Frequency Welding) Helical Serrated finned tubes include:
Improved heat transfer efficiency: The serrations on the fins help to disrupt the boundary layer and increase turbulence, which improves heat transfer efficiency.
Lower pressure drop: The serrations also reduce the pressure drop across the finned tube, which can result in energy savings and improved system performance.
Durable construction: The HFW welding process creates a strong and durable bond between the fins and the base tube, which can withstand high temperatures and pressures.
Versatility: HFW Helical Serrated finned tubes can be used in a variety of applications, including power generation, chemical processing, and HVAC, due to their high efficiency and durability.
Applications
The common application fields are:
1. Heat exchangers units for power plant(electric, nuclear, thermal and geothermal power plants);
2. High corrosive systems (condensers, evaporators, sea water desalinations, fertilizing, urea systems, ammonia, gas, corrosive acids);
3. The petroleum, chemical and petrochemical industries;
4. The food processing and refrigeration industries;
5. Natural gas treatment;
