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DELLOK High Frequency Welded Longitudinal Fin Tube Air Heater

1 piece
$10 ≥1 Piece/Pieces
DELLOK High Frequency Welded Longitudinal Fin Tube Air Heater
Features Gallery Product Description Request A Quote
Application: Heat Exchanger
Fin Density: Customized
Fin Height: Customized
Fin Length: Customized
Fin Material: Stainless Steel
Fin Thickness: Customized
Finned Height: Customized
Finned Pitch: Customized
Finned Type: Longitudinal
Material: Stainless Steel
Surface Treatment: Polishing
Tube OD: Customized
Tube Wall Thickness: Customized
High Light:

High Frequency Welded Longitudinal Fin


Air Heater Longitudinal Fin Tube

Basic Infomation
Place of Origin: China
Brand Name: Dellok Yonghui
Certification: ISO90001
Model Number: Longitudinal Finned Tube
Payment & Shipping Terms
Packaging Details: wooden box
Delivery Time: 1-3 weeks
Payment Terms: D/A, L/C, D/P, T/T, Western Union, MoneyGram
Supply Ability: 10000 Piece/Pieces per Month
Product Description

DELLOK High Frequency Welded Longitudinal Fin Tube Air Heater



About Us


DELLOK (YONGHUI RADIATING PIPE MANUFACTURING CO.,LTD.) was established in 2002, which is located in Jiangsu, China. After many years of development, the company now has 66 million yuan in fixed assets, more than 200 employees, and 33 technical staffs. We have 4 aluminum processing production lines, with the annual processing capacity of more than 20,000 tons; And we have 5 tube-drawing production lines; 47 fintube production lines, 1 imported production line from American with the brand of McElroy , with the annual production capacity of 12 million meters the above. Quality is the theme of eternal pursuit of winner -Production workshop- Meticulous works, standardized management system and systematic quality assurance are Dellok(YONGHUI)'s best commitment to quality. In Dellok(YONGHUI), the quality control is not only the detection of the final process, but throughout the entire production process. We implement a set of quality control and assurance systems. Each batch of pipes is sampled and tested, and records are kept as a quality guarantee for the final product.




Longitudinal Finned Tube Product Description:

Longitudinal finned tubes are used to give a great performance in any heat transfer application, especially in petrochemical area. They are the heart of heat exchangers that use their effective characteristics.

Our finned tube is particularly efficient as the channels are welded on the external surface of the tube by means of resistance weld technique. Every channel is the result of a fin strip shaped into a U form (made by us), such that each leg of the U will form a fin. The number of fins will be always a multiple of four with a maximum number depending on the outside diameter of the tube and on the thermodynamic calculations promoted for a specific job.

Longitudinal Finned Tube

Longitudinal Fin Tube Manufacturing Process:

The longitudinal fin tubes are welded onto the core plain tubes by resistance welding or welding with filler metal.


Welded Steel Pipe


Longitudinal Fin Tube(Carbon Steel Welded Pipe) Advantages:

Provide 8 to 12 times the heat transfer area of bare tubes.

Are more efficient than bare tubes.

Provide smaller exchangers due to increased Heat Transfer area.

Often provide a more economical selection.

Fins can be "Cut & Twist" to increase shell side fluid turbulence and improve heat transfer.


Longitudinal Fin Tube


Brown Fin Tube Properties:

Improve heat transfer efficiency in efficient space.

Reduces installation space on required heat transfer surfaces.

Reduce the cost of the equipment, and have a high operational reliability.

The pressure drop on the side of the tube is reduced and the operation cost is reduced.

The stiffness of steel tube is improved, and the seismic performance of steel tube is improved.

Enhance heat transfer, reduce flow resistance and metal consumption.


Fin Tube


Longitudinal Finned Tube(Welded Steel Pipe) Applications:

We supply longitudinal finned tubes for:

double pipe heat exchangers

multi-tube heat exchangers

fire rated heaters

gas coolers

tank heaters

And we are able to accommodate the requirements of various industries, including oil, power, chemical, and petrochemical.


Brown Fin Tube




Longitudinal Finned Tube Specifications:


Product Specification
Tube OD 16~273 (mm) 3/8”~10”(NPS)
Tube Wall Thk 2.11~25.4 (mm) 0.08”~1”
Tube Length ≤12,000 (mm) ≤39 ft
Fin Thk 1.0~1.5 (mm) 0.04”~0.06”
Fin Height 5~25 (mm) 0.2”~0.98”
Fin Pitch 1U~36U
Fin Type “U”or“I/L”
Material Combinations
Fin Material C.S. (most common grade: Q235B)
S.S. (most common grade are AISI 304, 316, 409, 410, 321,347)
Tube Material C.S. (most common grade: A106 Gr.B)
S.S. (most common grade are TP304,316, 321, 347)
A.S. (most common grade are T/P5,9,11,22,91)



Carbon Steel Welded Pipe

Product Categories : Longitudinal Finned Tube


  • Our Quality
    Our quality awareness stems from the roots of our being. Each product is produced as per customer specifications meeting or exceeding applicable codes and standards. Each product is inspected and related documents are maintained to ensure the compliance. Additional testing and Third Party Inspection Agency can be offered if required by customer for further assurance. We are always concentrated on improving the effectiveness of our Quality Management Systems.
  • Our Service
    Our service means getting the job done the way customer want it done. We always have the customer in our mind atall times. We realize that the customers, needs are different and we have the ability to satisfy those needs. Whether processing on customer-supplied materials or supplying a job completely turnkey, you can always count on us.
  • Our Efficiency
    We can work 24/ 7 to meet your needs. Our proprietary online quote system enables us to rapidly prepare the quotes and reply to you. Our shops can operate 24 hours a day by shifts to satisfy your urgent delivery time. We can also maintain emergency contacts anytime you need, no matter pre-sales or after-sales.
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Get in touch with us
Contact Person : Pax Yang
Tel : +862569521609
Fax : 86-25-6952-5709
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