As the only local manufacturer in Indonesia specializing in this field, Arezda’s Extended Surface Finned Tube Manufacturing Division offers a great variety of FINNED TUBES coming in combinations of various kinds and sizes of tubes and fin materials with the types of fins required.
Our <INGI>® Products, manufactured according to international specifications including those of ASME quality standards, have been produced to meet the stringent rules of applications in the petroleum/oil and gas industries. The classification of <INGI>® extended surface tubing is as follows :
Helically Applied & Extruded Finned Tubes
KL Type
(Wrapped-on Knurled Footed Fin)
The “Knurled L-footed Fin” is similar to the “L-footed Fin, ” but with a greater design temperature. The foot of the fin is knurled simultaneously with the inner tubes, ensuring a tight contact between the fins and the inner tube.
Max. Design Temperature:
320°C ( 608°F )
L Type
(Wrapped-on Fin)
The “L-footed Fin” is a circular fin wrapped under tension around the base tube. The feet of the fins cover the whole surface between the fins. The L-foot provides a large contact area, ensuring a good path for heat transfer from the base tube surface to the fin.
Max. Design Temperature:
130°C ( 266°F )
LL Type
(Overlapped Fin)
The “Overlapped L-footed Fin” is fabricated with a relatively greater amount of fin material in the foot, ensuring full coverage of the base tube and prohibiting any contact of the ambient with the base tube.
Max. Design Temperature:
180°C ( 356°F )
G Type
(Embedded Fin)
The “Embedded Fin” also referred to as the applied fin, is a helically tension wound fin embedded in the base tube material by first ploughing a groove, followed by stretching the fin material into the groove and rolling the base material against the base to achieve a good fin-to-tube bond.
Max. Design Temperature:
400°C ( 752°F )
Extruded Type
(Bimetal Finned Tube)
The “Extruded Fin” is made by covering the base tube with another aluminum tube. The fin-tube contact is obtained by a cold extrusion operation of the aluminum via a finning machine.
Max. Design Temperature:
300°C ( 572°F )
Helically Welded Finned Tubes
ERW Type
(High-Frequency ERW Fins)
Precision Engineered for Superior Heat Transfer
Manufactured with continuous helical fins and advanced ERW technology, our finned tubes deliver high thermal efficiency, exceptional fin-to-tube integrity, and reliable performance in demanding heat transfer applications.
Typical Applications :
Air Fin Coolers • Heat Exchangers • Economizers • Waste Heat Recovery • Fired Heaters
ERW Studded Tubes/Pipes
Studded Type
Engineered for Enhanced Heat Transfer Performance Studded Tube is a high performance heat transfer solution featuring precision-welded studs on the tube surface to maximize heat transfer area and thermal efficiency.
Designed for demanding industrial applications, our Studded Tubes offer reliable performance, robust construction, and customizable configurations to meet specific operating and project requirements
Typical Applications :
Boilers • Fired Heaters • Waste Heat Boilers • Heat Recovery Units • Industrial Heat Exchangers
Other Types of Finned Tubes
Longitudinal Welded
The “Welded Fin” is made by spot welding of the fins to the base tube. As it is made to order, your spesifications and/or technical drawing is necessary.
Serrated Finned Tube
Optimized Geometry for Enhanced Heat Transfer
Our Serrated Finned Tubes feature precisely formed serrated fins designed to increase heat transfer surface area while promoting improved airflow and thermal performance.
Engineered for demanding industrial applications, they provide high thermal efficiency, robust construction, and reliable long-term performance.
Typical Applications :
Air Fin Coolers • Heat Exchangers • Economizers • Waste Heat Recovery • Process Equipment
etc., as per customer’s requirements.