Description

Fin tubes are required in a constandly increasing quantity for the production of heatexchangers, condensers, coolers and furnaces. The great increase of the thermal efficiency when applying fin tubes allows a substantial reduction in size and costs of such cooling equipment. The surface of such tubes is substantially increased and consequently less tubes are required compared with exchangers with plain tubes.

​Basaranlar offers one of the world most diversified finned tubing product lines. Although specializing in a helically wound brazed finned tube, we offer many of the other forms of fin to tube attachments available in today’s market. Pricing and delivery is competitive.

​We produce finned tubes below:

• L-Fin

• LL-Fin

• KL-Fin

• G-Fin

• Extruded Fin

• Welded Fin

• Spiral & Corrugated Tube

 

SERPANTINE USAGE AREAS

Petrochemical industries, natural gas cooling, steel industry: blast furnace and converter systems, power generation: steam turbine exhaust condensate, contact condensate with circulating condensate cooling, fossil and nuclear power plants, air conditioning (freon, ammonia, propane), domestic waste incineration, compressor It is used in sectors such as coolers.

FINNED TUBE TYPES

G-type fin

Tube Material: Tube material can be carbon steel, low alloy steels, stainless steels, brass, copper, copper-nickel alloys, aluminum bronze, nickel alloys, titanium.

Fins: Fins materials can be Aluminum, copper, steel, galvanized steel.

Advantages

Thermal: Thermal conduction is constant due to fin and tube wall contact, making it possible to use a wall temperature of up to 400 °C.

Mechanical: The Fins is adjusted along its length and as a result does not come loose even if partially disassembled.

L-Type fin

Pipe material: Tube material can be carbon steel, low alloy steels, stainless steels, brass, copper, copper-nickel alloys, aluminum bronze, nickel alloys and titanium.

Fins: Fins materials: Aluminum, Copper.

Production method: The strip material is folded in an L shape and then wrapped around the tube. The legs of the fins are combined and the fins cover the entire pipe surface. Both ends are clamped to prevent opening.

Advantages

Economical: This production method allows us to lay a walled tube whose thickness is very thin when using high-value alloys (titanium, stainless, copper, nickel).

Corrosion: The tubes can withstand a temperature of up to 130°C without risk of atmospheric corrosion or thermal stress.

Extruded Fin

Tube Material: Tube material can be carbon steel, low alloy steels, stainless steels, brass, copper, copper-nickel alloys, aluminum bronze, nickel alloys.

It can be applied to tubes with very thin wall thickness.

Outer Tube: Usually Aluminum (available in different grades)

Production method: The main tube, made of any material, is placed in an aluminum tube. This double pipe passes through a machine consisting of three spindles, each set at 120°. The blades in this machine allow the aluminum tube to be plastered onto the main tubes and fins to be formed.

In some cases (high air speed) the fins are serrated after the fin treatment to increase the heat transfer coefficient.

ADVANTAGES

Thermal: Bonding the outer and inner tubes eliminates the risk of loss of contact with aluminum due to thermal stress. Maximum operating temperature: 250 ° C. The transfer coefficient remains constant.

Mechanical:Fins are harder and withstand handling shocks better than “G” and “L” types.

I-Type Fin

Production process: Fins are spirally wound on the tubes without welding. The head and the last fins are welded to the tube.

Application: Carbon steel, galvanized and for special applications Stainless Steel, Copper, Brass and/or Aluminium.

Low finned tubes

Manufacturing process:The fins are obtained from the wall of the straight tube using a transition roller. The tube and fins consist of the same part.

Advantages:

It is obtained by creating low-height fins by taking advantage of the wall thickness of a round, straight tube in the machine. In this way, the tube and fins consist of the same piece.

Provides 2.5-3 times the external surface area of the bare tube.

With improved heat exchanger efficiency, it means less tube is required to achieve the same heat transfer as a bare tube.

Low fin tubes can improve the performance of an existing exchanger without the need to manufacture new, larger exchangers.

Reduced space and weight can be extremely valuable in offshore oil and gas production or high-altitude distillation columns.

Low-fin technology can transform large shell and tube exchangers into compact heat exchangers.

It provides an economical solution to heat exchange problems of environments with different heat conduction abilities or different current conditions. High chemical, thermal and mechanical resistance suits harsh working conditions.

Elliptical Finned tubes

It is used as an alternative to traditional circular tubes in finned tube heat exchangers due to its better airflow properties. The finned tube is galvanized after assembly to ensure good thermal contact.

As a result of the reduction in air-side pressure drop, a higher heat transfer coefficient is also achieved while elliptical tubes provide up to 25% less.