What is a Longitudinal Finned Tube?
A Longitudinal Finned Tube is a heat transfer tube that uses fins that are welded parallel along the tube axis instead of being helically wound. These fins maximize the exterior surface area of the tube increasing thermal performance in heat exchangers, air heaters, waste heat recovery systems, economizers, industrial process equipment and other industrial applications that need the use of a low pressure gas flow.
Longitudinal Finned Tube – High Performance Heat Transfer Solutions
We offer the most competitive Longitudinal Finned Tube to achieve better heat transfer performance in toughest industrial applications. Our finned tubes are manufactured using leading welding technologies, quality raw materials and strict manufacturing procedures for reliability, durability and high performance.
As specialists in heat transfer products, we are well aware of the operational challenges in power, petrochemical, oil & gas, HVAC, marine, fertilizer, industrial heat recovery plants and offer Longitudinal finned tubes manufactured as per global standards and clients' specific needs.
We are capable of manufacturing Longitudinal Finned Tube for Heat Exchanger, air cooler, economizer and waste heat recovery unit and offer solutions for increased thermal efficiency and reduced running costs.
What is a Longitudinal Finned Tube?
Longitudinal Fin Tube consists of straight fins attached along the length of the tube. In longitudinal fin tube, fins are parallel to the tube axis, not spirally. Therefore, they create large surface area for heat exchange between fluids and gases.
The fins are welded to the tube using techniques like resistance welding, high frequency welding or laser welding.
Key Characteristics
- Enhanced heat transfer performance
- Increased external surface area
- Lower pressure drop compared to some fin configurations
- Suitable for gas-side heat transfer applications
- Excellent structural integrity
- Long service life under harsh operating conditions
- Available in multiple fin configurations and materials
Table of Content
- What is a Longitudinal Finned Tube?
- Longitudinal Fin Construction
- Longitudinal Finned Tube Manufacturing Process
- Types of Longitudinal Fin Type Fin Tube We Supply
- Specifications of Longitudinal Finned Tubes
- Chemical Composition of Common Stainless Steel Longitudinal Finned Tubes
- Mechanical Properties
- Physical Properties
- Advantages of Welded Longitudinal Finned Tubes
- Applications of Longitudinal Finned Tube for Heat Exchangers
- Why Choose Us for Longitudinal Finned Tubes?
- Longitudinal Finned Tube Suppliers in USA and Global Markets
Longitudinal Fin Construction
Accurate placement and adhesion of the fins on the base tube is a critical feature in Longitudinal fin construction. It allows for optimum heat transfer and reliability of long term operations.
Typical Longitudinal Fin Construction Methods
Welded Fin Construction
Continuous welding of fins to tube creates a metallurgically bonded and extremely efficient thermal conductivity of fin to tube.
Resistance Welded Construction
Electrical resistance of the fins heats localized spots to form strong and uniform weld.
Laser Welded Construction
This provides high precision fin installation with very low thermal stress or deformation to allow excellent thermal transfer performance.
Mechanical Attachment
Mechanical attachment of fins is employed in specific applications where operational environments would permit a non-welded fin attachment method.
The decision for which construction method to utilize is influenced by temperature and pressure conditions, corrosion characteristics and thermal performance goals of the operating environment.