Aluminium fins are formed from a bimetallic tube consisting of a base tube and an aluminium muff tube. The fins are formed on a cold rolling process from the wall thickness of the aluminium muff tube. Extruded fin gives very good corrosion protection to the base tube, as the base tube is not visible to the atmosphere inbetween the fins.

Maximum operating temperature for extruded finned tube is 325 deg C.

Fin Material - Aluminium (or) Copper

Tube Material - No theoretical limit

We have gained huge repute by offering highly demanded Spiral Crimped Fin Tubes. These tubes are suitable for high temperature applications and widely installed in food processing plants, textile mills and varied heat exchangers in the domestic market. Developed thoughtfully to create a stress free and non porous contact between the fin and the tubes the offered product is rigorously tested for its industry compliance. Further, our prestigious clients can avail these tubes in varied materials and size specifications from us.

Features

• Good thermal efficiency
• Excellent vibration resistance
• Long lasting performance

Finned tubes are used for efficient cooling or heating is required. These kind of extended surface tubes are used for the production of air-cooled heat ex-changers condensers and even convection coils used in furnaces.

Fins are basically external and extended surfaces located or inserted on outside of tubes and or pipes in order to increase the total surface area and thermal efficiency, resulting in compact heat transfer equipment.

Operating temperature limits for the various types of fin-tubes. Finned tubes are used in applications involving the transfer of heat from a hot fluid to a colder fluid through a tube wall considering three factors:

The temperature difference between the two fluids

The heat transfer coefficient between each of the fluids and the tube wall

The surface area to which each fluid is exposed.

So the whole concept of finned tubes is to increase outside surface area. The advantage of finned tubes is that by increasing overall heat transfer rate, the total number of tubes required for a given application is reduced, thereby also reducing overall equipment size and decreasing the cost of the project. In many application cases, one finned tube replaces six or more bare tubes at less than 1/3 the cost and 1/4 the volume.

Application

• Oil and gas refineries
• Petroleum, chemical and petrochemical industries
• Natural gas treatment
• Steel making industry
• Power plants
• Air conditioning
• Compressor coolers

G Finned Tubes

Aluminium fin strip is wound & embedded on a groove and securely locked by closing the groove with the base tube metal. This ensures maximum heat transfer at high temperatures.

Maximum Operating temperature for G fin is 450 deg C.

Fin Material - Aluminium (or) copper

Tube Material - Carbon steel, Stainless steel, copper, Copper Alloys etc.

L Finned Tubes

Aluminium fin strip is formed to L shape and then tension wound to the base tube.

Maximum operating temperature for L fin is 150 deg C.

Fin Material - Aluminium (or) copper

Tube Material - No theoretical limit

KL Finned Tubes

This is manufactured similar to L fin except that the base tube is knurled before wrapping the 'L' shaped fin strip. After wrapping the fin strip, the fin foot is also knurled on the base tube to increase the bonding between the tube & fin. This will result in increased heat transfer performance.

Maximum Operating Temperature- 260 deg C

Tube Material - No theoretical limit.

Fin Material - Aluminium or copper

LL Finned Tubes

Aluminium fin strip is formed to L shape and tension wound on the tube with overlapping of fins as shown in the figure.

Maximum operating Temperature for LL fin is 180 deg C.

Fin Material - Aluminium or copper

Tube Material - No theoretical limit

In line with clients' diverse requirements across the country, we are offering a commendable range of Low Integral Fin Tube that are used in condensers, chillers and oil coolers. For strictly adhering to industry norms, our skilled professionals manufacture these fin tubes employing superior quality raw material and the latest technology. Our provided fin tubes are checked on different parameters that enable us to deliver qualitative product at client's end.

Features

• Corrosion resistance
• Precision design
• Accurate dimension

Other Details

The Integral Fin Tubes is a tube where the external surface of the tube is enhanced by the process of finning and fins are drawn from the base material of the tube, resulting to increase in the surface area by 2.5 times than the plain tube area. The Extruded surface achieved through our manufacturing process is real and uniform.

Characteristics

Fin Tubes are fully integrated so that the Heat Transfer, performance, life and resistance to vibration are excellent. Fin Tubes can improve the thermal performance of a Heat Exchanger without changing in Shell size, Flow Arrangement and Repositioning of tubing. Integral Low Fin Tubes have a very large Heat Transfer ratio thus it is possible to reduce the volume, weight of the Heat Exchangers and finally reduce the cost

Longitudinal Finned Tubes welded configuration can be used for practically any heat transfer application, and is particularly suited to high temperature, high pressure applications with high fin-side temperatures. The choice of longitudinal finned tubes versus helical finned tubes seems to be governed mainly by geometric considerations. For example, some heater configurations consist of finned tubes inserted inside other tubes longitudinal finned tubes are the obvious choice for such applications. In other cases, users prefer longitudinal finned tubes for installations where the tube will be oriented in a vertical direction the fin orientation facilitates fluid drainage on the fin side of the tube. The longitudinal fin configuration is most commonly used in shell and tube type applications such as in double-pipe and multi-pipe heat exchangers where the longitudinal finned tube is telescoped inside the bore of a larger tube shell. Heat is transferred between the fluid passing through the bore of the finned tube and the fluid passing through the bore of the shell. Fluids passing through the bore of the shell are forced between the longitudinal fins. In this case, a helical fin would block the flow of the fluid, rather than allowing the fluid to run between the fins.

Fins are basically external surfaces on tube for increasing the surface area of the bare tube, resulting in a compact Heat Exchanger.

The method of attaching the fins over tube is of prime importance, since even a slightest air gap between the tube and fins will defeat the whole purpose of fins over the tube.

Considering the above facts We has indigenously designed and developed a special purpose tube fining machine capable of producing following types of finned tubes.

Finned tubes are able to even out the heat transfer between the inside of the tube and the outside. When the heat transfer coefficient on the outside of the tube is significantly lower than the heat transfer coefficient on the inside of the tube, there is a major advantage to incorporate fins on the outside tube surface to take full advantage of the high heat transfer rate on the inside of the tube.

By using a finned tube with eight times as much surface on the outside of the tube, the total length of the tube required for heating the viscous oil can be reduced by one sixth, Fins are basically external surface on tube for increasing the surface area of the bare tube, resulting in a compact heat exchanger.

Our company holds vast experience in this domain and is involved in offering Wire Wound Fin Tube.

Tube Material : CS, SS 316, 304, Copper, Cupronickel, Aluminium Brass

Fin Height : Maximum 13 mm

Fin Material : CS, Stainless Steel 304/316 or Copper

The Important Features Of This Configuration Are Efficient, Effective Bond Of Fin To Tube Under All Conditions Of Temperature And Pressure, And Ability To Withstand High Fin Side Temperatures. This Solid Fin Configuration Is The Most Rugged And Will Stand Up To Repeated Cleanings For Fin Fouling If That Is A Problem In The Application.