E-Catalogue

Low Finned Tubes

logo Table of Content

Low Finned Tubes

Low finned tubes, also known as Trufin or integral fin tubes, are created through a process called plastic cold deformation. This method shapes fins directly from a smooth tube without removing any material. As a result, these fins enhance heat exchange efficiency and help reduce the size of heat exchangers.

logo Key Features

  • Versatile Applications: Unlike other fin tubes, low fin tubes are not limited to air-fluid heat exchangers. They are also commonly used in various types of shell and tube heat exchangers.
  • Enhanced Heat Transfer: The fins are rolled into the base tube itself, allowing for a greater density of fins per inch. This increases the heat transfer surface area, improving overall efficiency.
  • Manufacturing Process: The rolling process is done using specialized machinery, and these tubes can be supplied in both straight and U-bend configurations.
Low Finned Tubes are increasingly popular in fluid heat exchangers across various industries, thanks to their effectiveness and compact design.

logo Specifications of Low-Finned Tubes

Standard Technical Specifications
Carbon Steel ASTM A 498
Stainless Steel ASTM A 1012
Copper and Copper Alloys ASTM B 359
Titanium ASTM B 891

logo Materials - Low Finned Tubes

Materials
Carbon Steel SA 179 / A 179
Carbon Steel SA 210 / A 210
Carbon Steel SA 334 / A 334
Stainless Steel SA 213 / A 213 | SA 249 / A249
Duplex Stainless Steel SA 789 / A 789
Copper & Cu Alloys SB 111 / B 111 | SB 75 / B 75
Titanium & Ti Alloys SB 338 / B 338

logo Low Finned Tubes Standard Dimensions

Outside Diameter Thickness Length Fin Density
(mm) (inch) (mm) (BWG) (m) (ft) (fins/inch) (fins/m)
12.00 ÷ 60.00 0.47 ÷ 2.4 0.635 ÷ 4.572 23 ÷ 7 0.3 ÷ 25 1 ÷ 82 8 ÷ 48 315 ÷ 1890

logo Applications of Low Finned Tubes

Low finned tubes are used in various industries due to their efficient heat transfer capabilities. Common application fields include:
Applications & Uses of A513 Dom Tube
     
  Power Plants: Utilized in heat exchangers for electric, nuclear, thermal, and geothermal power plants.
  Corrosive Systems: Effective in systems that handle high corrosion, such as condensers, evaporators, seawater desalination, and processes involving fertilizers, urea, ammonia, and corrosive acids.
  Chemical and Petrochemical Industries: Widely employed for heat exchange processes in chemical manufacturing.
  Food Processing and Refrigeration: Used in various applications within the food industry, including refrigeration systems, to enhance thermal efficiency.
These applications highlight the versatility and effectiveness of low finned tubes in different environments.

logoFAQ

Low-fin tubes, or integral fin tubes, are used in various industries for heat transfer. They have low-height fins on their outer surface, which increases surface area and enhances heat transfer efficiency in applications such as heat exchangers.

High fin tubes are ideal for applications with significant temperature differences between fluids, as they provide greater surface area for heat transfer. Low fin tubes are more suitable for smaller temperature differences, offering moderate surface area and efficiency. Selection depends on application needs.

 

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