Double Row Finned Tube
Double Plate Fin Tube Heat Exchanger: High-Performance Heat Transfer Solutions
The Double Plate Fin Tube Heat Exchanger, one of the most fundamental elements determining efficiency in industrial heating and cooling systems, is an optimized finned tube technology with excellent thermodynamic properties. Thanks to its rectangular fin structure, this system maximizes surface area and is developed to provide the best heat transfer in limited spaces with its compact design. The plate fin heat exchangers produced by Fintherm ensure 100% contact between the tube and the fin through the following processes:- Galvanizing: Hot-dip process for maximum surface protection.
- Brazing: Ensuring high thermal conductivity.
- Internal Expansion: Mechanical bonding to eliminate air gaps.
Manufacturing and Technical Specifications
Plate fin heat exchanger manufacturing is a multi-stage process requiring expertise. After the standard tubes are formed, rectangular plates (fins) pressed with special dies are precisely arranged on the tube using automated machinery. The most critical point in the manufacturing stage is ensuring the fins are aligned on the tube surface without any gaps.- Material Diversity: Carbon steel, stainless steel, copper, cupronickel (bafon), or brass alloy tubes can be used depending on the fluid type.
- Production Methods: Sealing and high thermal conductivity are guaranteed through internal expansion, dip brazing, or interference fit methods.
- Flexible Design: The number of tubes can be adjusted according to customer needs; production is available in round or oval tube forms.
Application Areas and Fluid Compatibility
Double plate fin heat exchangers are designed to work compatibly with a wide range of fluids. They can successfully transfer many different substances, from chemical liquids to seawater, and from thermal oil to steam. They show high performance particularly in the following areas:- Textile Sector: Drying machines and air heaters.
- HVAC: Air handling unit (AHU) air heaters and coolers.
- Energy and Machinery: Oil coolers, water coolers, and turbocharger systems.
- Marine: Ship air towers and systems requiring corrosion resistance with seawater fluids.
Heat Exchanger Types According to Material Selection
The type of metal used determines the lifespan and performance of the system:- Carbon Steel & Hot-Dip Galvanized: Ideal for steam and thermal oil systems.
- Stainless Steel: Preferred in food facilities for hygiene and in environments with chemical corrosion risks.
- Copper & Copper Alloys: Yield excellent results in low-pressure applications requiring high heat conduction (brass, cupronickel).
Project Process
01.
Needs Analysis and Technical Evaluation
02.
Engineering Design and Calculations
03.
Production Planning and Material Selection
04.
Manufacturing and Assembly Process
05.
Testing, Inspection and Approval Processes
06.
Delivery, Support and After-Sales Services
Product Photos
Frequently Asked Questions
01.
What is a Double Row Finned Tube and What Are Its Advantages?
A double row finned tube is a specialized heat exchanger component consisting of metal fins arranged in pairs on the tube to increase the heat transfer surface. This system is particularly preferred in drying ovens and industrial heating systems with high air flow rates. The double row structure ensures that the air flow creates more turbulence while passing through the fins; this provides a much higher heat transfer coefficient and energy efficiency per unit area compared to standard arrangements.
02.
In which industrial sectors are double row finned tubes used?
Due to their high strength and thermal performance, double row finned tubes are widely used in textile drying machines, the paper industry, food drying tunnels, and large-scale central air handling units. Especially in environments with dusty or particulate air flow, the robust structure of the fins resists mechanical wear, while the large surface area allows for maximum heat recovery even from low-temperature fluids.
03.
Double Row Finned Tube Prices and Lifespan Factors
Double plate fin tube (pul dizme) prices are determined by the material of the main tube, the fin material, the tube diameter, and the total fin pitch density. Thanks to the fins being arranged on the tube with tight tolerances, these heat exchangers are minimally affected by thermal expansion. With correct material selection and periodic maintenance, they offer a long service life of up to 10-15 years, significantly reducing the maintenance and replacement costs for businesses.
