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DELLOK Welded Longidudinal Finned Tube For Tank Heaters

1 piece
$50 - 500 /Piece/Pieces
DELLOK Welded Longidudinal Finned Tube For Tank Heaters
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Application: Heat Exchanger/Condenser/Evaporator/Oil Cooler/Intercooler/Radiator
Certificate: ISO9001/ISO14001/OHSAS18001/API/CE/UL
Fin Height: 1-20mm
Fin Number: 1-20
Fin Pitch: 2-20mm
Fin Thickness: 0.1-1.5mm
Fin Type: L, LL, KL, KK, KLF, KKLF, G, W
MOQ: 1 Piece
Material: Carbon Steel/Stainless Steel/Copper/Aluminum
Packaging: Wooden Cases/Wooden Pallet/Steel Frame
Surface Treatment: Polishing/Sand Blasting/Anodizing/Nickel Plating/Chrome Plating/Powder Coating/Galvanizing
Tube Diameter: 6-50mm
Tube Length: 50-6000mm
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: MoneyGram, Western Union, T/T, D/P, D/A, L/C
Supply Ability: 10000 Piece/Pieces per Month
Product Description

DELLOK Welded Longidudinal Finned Tube For Tank Heaters



About us


Professional heat exchanger factory with 20 years of experience, providing you with one-stop heat transfer solutions to design different heat exchangers according to your purposes (metallurgy, food, petrochemical, pharmaceutical, beverage, wastewater, refrigeration, etc...)

Dellok Young is a professional manufacturer of various heat exchangers integrating R&D, design, production and sales. The heat exchangers produced are mainly used in petrochemical, electric power, papermaking, building heating, mining and other industries, such as air heaters, food industry plant protein powder, starch and other air heater spray drying systems.

The company now has a professional technical innovation team and professional after-sales personnel. The company's production plant covers an area of approximately 18,000 square meters, has multiple professional and advanced CNC and automated production equipment, and has obtained a number of professional certificates and patents.
The company has a professional foreign trade team and has trade cooperation with various regions. Some global partners conducted on-site inspections of the production plants and were very satisfied with the inspection results and established long-term strategic cooperative relationships with our company.


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Longitudinal Finned Tube Product Description:

Longitudinal Finned Tubes are produced by resistance welding fins in the longitudinal direction along the length of the tube. The fin strip is first formed into a U-shaped channel, such that each leg of the U will form a fin. The channels are cut to the appropriate length and then oriented along the length of the tube and resistance welded in place. The channels are welded in pairs, diametrically opposed — therefore the number of fins specified must always be a multiple of four.



Longitudinal Fin Tube Manufacturing Process:

The longitudinal I/L or U shape fins are welded onto the core plain tubes by resistance welding or welding with filler metal (Spot welded).

1. U bends tubes with longitudinal fins and Fin Tube Coils are available for requesting.

2. Longitudinal fins types: one-piece shape, standard U bent shape, cut & twist, perforated type etc…

3. The fin channels are welded to the tubes in opposite pairs. Fin height, number of fins and fin thickness can be specified.

4. Fins can be applied to either OD tube or NB pipe.



Longitudinal Fin Tube(Carbon Steel Welded Pipe) Advantages:

Increase of heat transfer rates for viscous liquids. Perforated fin type used whenever drainage of liquid from fin channels become a problem. Widely used in horizontal heat-exchangers.



DELLOK Welded Longidudinal Finned Tube For Tank Heaters 1



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.


DELLOK Welded Longidudinal Finned Tube For Tank Heaters 2


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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