Discover our diverse portfolio of finned tubes, including tension wound, embedded, and extruded finned tubes, each meticulously crafted for optimal performance.
Tension wound finned tubes are expertly engineered by wrapping a strip of premium aluminium or copper around the tube with precision tension, ensuring durability and efficiency. Our innovative strip winding technology allows for a variety of fin types: the reliable L-Fin, the reinforced LL-Fin, and the advanced KL-Fin, catering to diverse cooling needs.
Embedded fins (G-Fins) are crafted by intricately winding high-quality aluminium or copper strip into a helical groove carefully machined onto the tube's outer surface, ensuring superior heat dissipation.
Tension wound, embedded, and extruded finned tubes are essential in air coolers, serving key industries with unparalleled efficiency in the following applications:
Industrial heat exchangers for power plants encompassing electric, nuclear, thermal, and geothermal applications, delivering unmatched thermal management.
Optimized steam condensate systems designed to maximize efficiency and minimize energy loss.
Chemical and petrochemical industry solutions for superior heat exchange performance.
Food processing plants and advanced refrigeration technology, ensuring consistent temperature control and preservation.
Industrial applications, including steel mills, incinerators, and gas compression facilities, where robust heat exchange is crucial.
L-Foot Finned Tube
The L-footed finned tubing is a highly efficient yet cost-effective solution, providing maximum heat transfer at lower temperatures with precision engineering. Its unique L-shaped design firmly secures fins to endure heat cycling and withstand high-velocity air vibrations, ensuring longevity and performance.
The L-Foot Finned Tube is available with the following innovative Fin variations:
Knurled Fin - Featuring interference fit technology, this fin boasts mechanical knurling that enhances the bond between the fin material and the tube wall surface.
LL Fin - Known for its double overlap coverage, the LL Fin offers a double strip thickness coverage, thoroughly enveloping the entire base tube for maximum efficiency.
Perforated L Fin - Engineered with advanced fin face design, it creates unique "tear drop" slits around the helix, disrupting airflow for enhanced heat transfer.
L-Foot Fin / Wrap-On Fin
L-Foot Tension Wound Finned Tubes also referred to as Wrap-On Finned Tubes, are specifically designed for applications where temperatures remain below 300 degrees Fahrenheit, offering low-temperature solutions with added tube wall protection. These tubes consist of a thin aluminium fin strip meticulously wound helically around the tube circumference, providing effective heat transfer. A strategically formed "foot" on one side of the fin strip defines the L-Foot design, enhancing contact and stability. The strip is tightly wound around the tube, with the foot resting firmly on the outer surface for optimal contact. Each L's short horizontal limb maintains complete contact with the base-tube surface, ensuring comprehensive coverage. The tension in the fin strip during winding ensures the fin foot is securely seated on the tube, maintaining a firm hold for efficiency. L-footed finned tubing consistently delivers peak heat transfer efficiency, even at lower temperatures. The robust L-shaped design provides stability, allowing fins to withstand the rigors of heat cycling and high-velocity air vibrations. This fin type offers significant atmospheric protection for the tube wall, safeguarding against potential corrosion. The extensive contact surface between the tube and the fin enhances heat transfer capabilities. This fin design is recognized for its exceptional efficiency and cost-effectiveness, making it a prudent choice for many applications.
To prevent the aluminium fin from unravelling and to maintain consistent contact between the fin foot and the tube, the ends of the fins are securely stapled. This crucial contact point ensures optimal operation of the air cooler, effectively transferring heat from the tube wall through the fin to the ambient air, facilitating superior cooling performance.
Advantages:
Perfectly suited for low-temperature applications, offering flexibility and efficiency.
This finning type stands out as the most cost-effective method available, delivering exceptional value.
Easily removable failed fins during production allows for reuse of the bare tube, optimizing resource utilization.
No helical groove is required on the core tube, streamlining the manufacturing process.
Fins can be applied to an exceptionally thin-walled tube, a highly desirable feature when utilizing expensive alloy core tubes.
The tube can endure temperatures up to 130°C without succumbing to atmospheric corrosion or thermal stress, ensuring longevity and reliability.
Application:
Oil and gas refineries
Petroleum, chemical, and petrochemical industries
Natural gas treatment
Steel making industry
Power plants
Air conditioning
Compressor coolers
KL Footed Fin / Knurled L Footed Fin
The KL fin is also referred to as the knurled L fin. This finned tube mirrors the Wrap-On fin, crafted using a blend of Wrap-On and Embedded techniques for superior efficiency. Fins are meticulously formed from strips, shaped into an L, and then tapered to curl, achieving a precise and effective configuration. The helically wound fin is continuously looped onto the tube under tension for a seamless and durable fit. The fin snugly embraces the tube, enhancing heat transfer efficiency. A spinning tool expertly knurls the base tube, allowing the fin's foot to integrate into the base tube's knurling, ensuring a secure bond and enhanced thermal performance.
With the correct fin strip, each fin abuts the next, leaving no gaps, thus safeguarding the tube from corrosion. This feature provides robust protection against corrosion, extending the tube's lifespan. Similar to L fins, the fins are anchored at each end, preventing unwinding and maintaining structural integrity. KL-Foot tension wound finned tubes are predominantly utilized in metal applications, proving their versatility and durability. Capable of withstanding a maximum operating temperature of 320°C (608°F), showcasing remarkable thermal resilience.
Advantages:
Corrosion-resistant Tubes
Exceptional resistance to vibration, ensuring stability in dynamic environments.
Engineered to withstand temperatures soaring up to 320°C (608°F), demonstrating superior durability.
Combining high thermal performance with stress resistance and protection from air corrosion, this is a truly unique solution.
KL finned tubes can easily replace any existing finned tube, providing unmatched versatility.
LL-Foot Fin / Overlapped L
Fins are skillfully crafted from strips, akin to the L type, with the foot meticulously stepped into a double L form, then rolled into a taper for optimal curl. Helically coiled under tension, the LL-Foot Fin - Overlapped L adheres tightly to the tube, ensuring a snug fit. The fin firmly grips the tube, with one fin overlapping the next, fully covering the base tube and providing complete protection. This design ensures the tube is thoroughly shielded from corrosion, enhancing its durability and performance. In environments prone to corrosion, this innovative form of tube serves as a cost-effective and robust alternative to the more expensive extruded type fin, offering reliable performance and enhanced durability.
The fins are securely fastened at each end with the same precision and stability as the dependable L fins, ensuring optimal performance and longevity. The LL-type fin tube is expertly designed to withstand temperatures soaring up to 350 degrees Fahrenheit (177 degrees Celsius), making it an ideal 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 versatile product is perfect for an array 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..
DATANG STEEL PIPE Co., Ltd is a distinguished and respected processor and wholesaler, proudly exporting to global markets for an impressive span of 17 years.
Discover an expansive array of products including Finned tubes, Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers,as well as Vaporizers/Evaporators, all available at Datang.
Our extensive spot inventory includes high-quality carbon steel seamless pipes,ERW pipes, SSAW pipes, and alloy steel pipes, among others. We also provide a wide range of pipe fittings and flanges.
We warmly invite you to visit our state-of-the-art factory, and we eagerly anticipate the opportunity to collaborate with you.
DATANG STEEL PIPE Co., Ltd stands as a renowned manufacturer and wholesaler committed to exporting to global markets for over 17 years.
Backed by a highly skilled sales and technical team, we excel in crafting solutions and offering product customization tailored to your specific needs.
Explore an extensive selection of Finned tubes right here at Datang.
Our advanced production facilities include:
'G' Type Fin Tubes (Embedded Finned Tubes), 'L', 'LL', and 'KL' Type Fin Tubes (Wrap Around Finned Tubes) (6 dedicated production lines)
High-Frequency Welded Fin Tubes (including Serrated Finned Tubes) (8 state-of-the-art lines)
Laser Welding Finned Tubes (1 precision line)
Extruded Finned Tubes (Bimetallic Fin Tubes & Integral Monometallic Low Fin Tubes) (6 specialized lines)
In addition, we provide customized Fin tube heat exchangers, Air coolers, Radiators, Economizers, Condensers, and Vaporizers/Evaporators, all crafted to meet your precise specifications.
Our substantial spot inventory features premium quality carbon steel seamless pipes, alongside ERW pipes, SSAW pipes, and alloy steel pipes, essential for fin tube manufacturing.
A comprehensive assortment of pipe fittings and flanges are also at your disposal.
We extend a warm invitation to visit our cutting-edge factory, and we look forward with great enthusiasm to collaborating with you.
Customer Tour&Cooperation
Frequently Asked Questions (FAQ)
Q1: Are you a factory or trade company?
A1: We are a proud factory with a specialized international trade subsidiary for global exports.
Q2: What can you provide?
A2: Cangzhou Datang Steel Pipe Co., Ltd. excels in manufacturing Radiator and Heat Exchanger Equipment along with a variety of Fin Tubes.
Q3: Where is your factory?
A3: Our state-of-the-art factory is based in Cangzhou city, Hebei province, China, boasting an array of advanced machinery.
Q4: How do you control quality?
A4: We provide an Inspection & Guarantee Certificate with every shipment. Plus, Third Party Inspection is available to ensure the highest quality.
Q5: What are the advantages of your company?
A5: Our company shines with a team of professional experts, competitive pricing, and exceptional after-sales service, setting us apart from the competition.
Q6: Can you arrange the shipment?
A6: Absolutely! We facilitate hassle-free shipment arrangements through our long-standing partnerships with reliable forwarders.
Q7: How about the delivery time?
A7: Delivery is swift and customized to your order, typically within 30 days after receiving your advance payment.
Q8: Can you provide sample?
A8: Yes, we offer complimentary small samples readily available from our stock.
Reach out today for more detailed information and assistance!
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