Discover our versatile range of finned tubes that includes tension wound finned tubes, embedded finned tubes, and extruded finned tubes, each designed to meet diverse cooling needs.
Tension wound finned tubes are intricately crafted by spirally winding a strip made of high-grade aluminium or copper around the tube, using precise tension for optimal performance. Our advanced strip winding technology offers a variety of fin types: L-Fin, LL-Fin, and KL-Fin, each engineered for specific heat transfer demands.
Embedded fins (G-Fins) are crafted by expertly embedding an aluminium or copper strip into a helical groove machined onto the tube's exterior surface, ensuring seamless integration and enhanced thermal efficiency.
Our tension wound, embedded, and extruded finned tubes serve as pivotal components in air coolers, with applications spanning several key industries:
Power plant heat exchangers, including those in electric, nuclear, thermal, and geothermal facilities, rely on our finned tubes for superior heat management.
Steam condensate systems benefit from our efficient finned tube designs, tailored to optimize energy efficiency and performance.
In the chemical and petrochemical industry, our finned tubes are essential for managing complex thermal processes with precision.
Our products are integral to food processing plants and refrigeration technology, ensuring optimal operational efficiency and cooling.
Industrial applications, such as in steel mills, incinerators, and gas compression facilities, gain from our durable and efficient finned tubes.
L-Foot Finned Tube
Our L-footed finned tubing is exceptionally efficient yet budget-friendly, delivering exceptional heat transfer capabilities even at lower temperatures. The innovative L-shaped design of our tubes ensures robust fin attachment, withstanding heat cycling and high air velocity-induced vibrations.
Variations of our L-Foot Finned Tube include the following fin configurations:
Knurled Fin - Featuring an interference fit type, with mechanically knurled fin material securely bonded to the tube wall, enhancing contact and efficiency.
LL Fin - Double Overlap fin design, providing comprehensive double strip thickness coverage, fully protecting the base tube.
Perforated L Fin - This design features 'tear drop' slits along the fin face, strategically disrupting airflow for enhanced thermal performance.
L-Foot Fin / Wrap-On Fin
L-Foot Tension Wound Finned Tubes also referred to as Wrap-On Finned Tubes, are ideal for applications where temperatures remain below 300 degrees Fahrenheit, providing necessary tube wall protection at low temperatures. Crafted from a thin aluminium fin strip, L-Foot tension wound finned tubes are helically wrapped around the tube, ensuring a snug and efficient fit. A distinctive 'foot' is initially shaped on one side of the fin strip, giving rise to the name L-Foot. The strip is meticulously wound around the tube, with the foot providing strong contact with the tube's outer surface. Each L's short horizontal limb maintains contact with the base-tube surface, offering complete coverage. The tension in the fin strip during wrapping ensures the fin foot is firmly seated on the tube, securing the fin's position. L-footed finned tubing delivers unparalleled heat transfer efficiency at lower temperatures, optimizing energy use. The L-shaped configuration securely fastens the fins, effectively resisting heat cycling and high-speed air vibrations. This fin design also provides significant atmospheric protection to the tube wall, guarding against corrosive elements. The extensive contact area between the tube and fin significantly boosts heat transfer for superior performance. Efficient and cost-conscious, this fin design represents a perfect blend of performance and affordability.
Fin ends are meticulously stapled to prevent aluminium fin unraveling, ensuring sustained contact between the fin foot and the tube. This contact is absolutely critical to the flawless operation of the air cooler, as it facilitates the efficient transfer of heat from the tube wall, then through the fin, ultimately reaching the surrounding ambient air.
Advantages:
Perfectly suitable for low-temperature applications
This finning type stands as the most cost-effective method compared to all other options available.
Failed fins can be effortlessly removed during production, allowing the bare tube to be reused for finning, ensuring sustainability and efficiency.
There is no necessity to create a helical grove over the core tube, saving time and resources.
It's possible to place the fins on an ultra-thin-walled tube, highly desirable when utilizing expensive alloys as the core tube.
The tube is engineered to withstand temperatures up to 130°C, ensuring no risk of atmospheric corrosion or thermal stress.
Application:
Oil and gas refineries
Petroleum, chemical, and petrochemical industries
Natural gas treatment processes
Steelmaking industry applications
Power generation plants
Air conditioning systems
Compressor coolers
KL Footed Fin / Knurled L Footed Fin
The KL fin is alternatively known as the knurled L fin. This finned tube is strikingly similar to the Wrap-On fin, crafted using both Wrap-On and Embedded techniques for superior performance. The fins are meticulously made from strips prepared into an L shape, then intricately rolled into a taper, enabling them to curl with precision. It is then helically wound onto the tube in a seamless continuous loop under tension. The tube is securely embraced by the fin for maximum efficiency. A spinning tool expertly knurls the base tube, allowing the foot of the fin to integrate into the knurling of the base tube, ensuring a tight bond and enhanced thermal performance.
When the appropriate fin strip is used, the foot of one fin aligns perfectly with the next, eliminating any space between the fins. This configuration helps shield the tube from potential corrosion. Similar to L fins, they are attached at each end to prevent unwinding, ensuring stability. In metal-involving applications, KL -Foot tension wound finned tubes are predominantly employed for their superior performance. Capable of withstanding a maximum operating temperature of up to 320°C (608°F)
Advantages:
Corrosion-resistant Tubes ensure longevity
Remarkable vibration resistance for stability
It can endure temperatures soaring up to 320°C (608°F) with ease.
Combining high thermal performance and stress resistance with protection from air corrosion offers a truly unique combination.
KL can replace any form of finned tube efficiently and effectively.
LL-Foot Fin / Overlapped L
The fins are fashioned from strips in a manner akin to the L type, but with a foot meticulously prepared into a carefully controlled stepped double L shape, rolled into a taper for optimal curling. The LL-Foot Fin - Overlapped L is expertly helically coiled onto a tube under precise tension. The fin adheres tightly to the tube, with one fin elegantly overhanging the foot of the next, ensuring the base tube is entirely covered and protected. As a result, the tube enjoys complete protection from corrosion, enhancing durability. In environments where corrosion is a concern, this variant of tubing is a popular choice, offering a cost-effective alternative to the pricier extruded fin types. Its robust design ensures long-lasting performance, making it ideal for demanding applications.
The fins are meticulously secured at each end employing the same reliable technique used for L fins, ensuring stability and efficiency throughout its use. The LL-type fin tube is engineered to withstand temperatures soaring up to an impressive 350 degrees Fahrenheit (177 degrees Celsius), making it an optimal choice for high-temperature applications.
parameters
| PRODUCT |
TYPE |
TUBE MATERIAL |
FIN MATERIAL |
TUBE SIZE |
FIN SIZE |
| Heat Exchanger Finned Tube |
Extruded Fin Tube |
All Kind of Material can be applied |
Aluminum A1100 |
15.88~50.8 |
7~11.5FPI |
| Fin Height Max 16mmH |
| L,LL,KL-Foot Fin Tube |
All Kind of Material can be applied |
Copper C1100, C1220... |
12.70~50.8 |
2.3~11.5FPI |
| Wrap Around Finned Tube |
Fin Height Max 16mmH |
| G-Fin Tube (Embedded Type) |
Aluminum A1100, A1050, A1060... |
|
| High Frequency Welded Fin Tube |
A179 Carbon Steel Tube |
Carbon Steel Tube |
12.70~160 |
1.5~7FPI |
| Stainless Steel Tube |
Stainless Steel Tube |
0.8~3.2mm. Thickness |
| Alloy Steel Material |
Alloy Steel Material |
|
| Integral Copper & Copper Alloy High Finned Tube |
C12200, C11000, C70600 |
C12200, C11000, C70600 |
15.88~22.23 |
5~9FPI |
| Max 12mm. H |
| Oval Finned Tube |
Carbon Steel Tube |
Carbon Steel Tube |
All Size Available |
5~15FPI |
| Stainless Steel Tube |
Stainless Steel Tube |
| Alloy Steel Material |
Alloy Steel Material |
| Copper & Copper Alloy Tube |
Copper & Copper Alloy Tube |
| Monometallic Fin Tube |
Low Fin Tube |
Carbon Steel, stainless steel, titanium, copper, brass, nickel alloy, etc. |
-- |
9.52~40 |
12, 16, 19 28 FPI, etc. |
| Turbo-C Tube |
| Turbo-E Tube |
| Corrugated Tube |
All Kind of Material |
-- |
6.35~40 |
2~9FPI |
Application
Our Robust G Type Embedded Finned Tube is versatile and perfect for a wide range of applications including aftercoolers, air coolers, air heaters, charge air chillers, condensers, convection heaters, electric heaters, evaporators, fluid coolers, gas coolers, heat pipes, hydrogen coolers, industrial tumble dryers, intercoolers, immersion heaters, oil coolers, radiators, refrigeration systems, solvent recovery processes, and steam to air heat exchangers, delivering outstanding performance across various thermal management needs..
DATANG STEEL PIPE Co., Ltd stands as a prestigious and renowned processor and wholesaler, proudly exporting to global markets for an impressive span of 17 years.
Discover a vast and diverse selection of our premium products, including Finned Tubes, Fin Tube Heat Exchangers, Air Coolers, Radiators, Economizers, Condensers,and Vaporizer/Evaporators, all available at Datang.
We boast a substantial inventory of high-quality carbon steel seamless pipes,accompanied by ERW pipes, SSAW pipes, alloy steel pipes, among others. Additionally, pipe fittings and flanges are readily available to meet your needs.
We warmly invite you to visit our state-of-the-art factory and eagerly anticipate the opportunity to collaborate with you.
DATANG STEEL PIPE Co., Ltd, a respected manufacturer and wholesaler, has been exporting to international markets for 17 remarkable years.
Our dedicated professional sales and technical team is committed to designing tailored solutions and offering product customization to suit your unique requirements.
At Datang, you'll find a comprehensive variety of Finned Tubes.
Our advanced production facilities are detailed below:
'G' Type Fin Tube (Embedded Finned Tube), 'L', 'LL', 'KL' Type Fin Tube (Wrap Around Finned Tube) operating on 6 production lines,
High Frequency Welded Fin Tube (including Serrated Finned Tube) utilizing 8 production lines,
Laser Welding Finned Tube produced on 1 cutting-edge line,
Extruded Finned Tube (Bimetallic Fin Tube & Integral Monometallic Low Fin Tube) manufactured across 6 sophisticated lines.
In addition, we offer customized solutions for Fin Tube Heat Exchangers, Air Coolers, Radiators, Economizers, Condensers, as well as Vaporizer/Evaporators.
Our inventory includes a large quantity of high-quality carbon steel seamless pipes, complemented by ERW pipes, SSAW pipes, and alloy steel pipes, essential for fin tube manufacturing.
We also provide an extensive range of pipe fittings and flanges.
We extend a warm invitation to visit our factory and look forward to establishing a fruitful partnership with you.
Customer Tour&Cooperation
FAQ
Q1: Are you a factory or trade company?
A1: We are both a factory and an international trade subsidiary, specializing in exporting top-notch products.
Q2: What can you provide?
A2: As an esteemed manufacturer, Cangzhou Datang Steel Pipe Co., Ltd. excels in producing premium Radiator and Heat Exchanger Equipment, alongside an extensive array of superior Fin Tubes.
Q3: Where is your factory?
A3: Strategically positioned in Cangzhou city, Hebei province, China, our facility boasts advanced machine equipment to meet diverse production needs.
Q4: How do you control quality?
A4: We offer an Inspection & Guarantee Certificate with every shipment, and welcome Third Party Inspections to ensure top-tier quality.
Q5: What are the advantages of your company?
A5: Our company stands out with an exceptional team of technical experts, competitive pricing, and unrivaled after-sales service, setting us apart from the competition.
Q6: Can you arrange the shipment?
A6: Absolutely, we are well-equipped to manage shipments efficiently, leveraging long-standing partnerships with trusted forwarders.
Q7: How about the delivery time?
A7: Delivery time is contingent upon the order specifics, typically occurring within 30 days following the receipt of your advance payment.
Q8: Can you provide a sample?
A8: Certainly! We offer complimentary small samples that are readily available in our inventory.
Reach out today for comprehensive information and let us assist you further!
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