Finned Tube Radiator Manufacturer China Factory
What is a Finned Tube Radiator?
A finned tube radiator is one of the most widely used heat exchange devices in gas-liquid heat exchangers. It enhances heat transfer by adding fins to a standard tube. The tube can be made of steel, stainless steel, copper, etc. The fins can be made of steel strip, stainless steel strip, copper strip, aluminum strip, etc. Finned tube radiators are used in various fields such as textiles, printing and dyeing, petroleum, chemical industry, drying, and power generation.
Fin Tube Radiator Structure and Principle
Any heat exchanger that adds fins to heat exchange tubes to increase the heat dissipation area can be classified as a “finned tube radiator.”
Finned tube radiators can be classified according to the structure of the fins: wound fins, string fins, welded fins, and rolled fins. Commonly used materials are steel, stainless steel, copper, and aluminum.
Finned Tube Main Structure and Classification
Base Tube Material: Depending on the working conditions, carbon steel, stainless steel (corrosion resistant), copper tube (high thermal conductivity), etc., can be selected.
Fin Material: Commonly used are steel strip, stainless steel strip, aluminum strip, or copper strip.
Finned Tube Processing Classification:
Wound Fin Type: Metal strip is spirally wound onto the base tube, resulting in tight contact; this is the most widely used type.
String Fin Type: Punched thin fins are strung onto the tube; suitable for thin fins.
Welded Fin Type: Fins are welded to the base tube, resulting in high bonding strength and resistance to high pressure and high temperature.
Rolled Fin Type: Fins are directly rolled onto the base tube (typically used for copper-aluminum composites); there is no contact thermal resistance, resulting in extremely high efficiency.
Applications of Finned Tube Radiators
The most widely used type of finned radiator is the steel-aluminum finned tube (wound steel-aluminum composite finned tube, rolled steel-aluminum composite finned tube). It utilizes the pressure resistance of steel and the high thermal conductivity of aluminum, and is manufactured using specialized machine tools. Its contact thermal resistance is almost zero at an operating temperature of 210℃.
Steel-aluminum composite tube radiators have advantages that other types of finned tube radiators cannot replace.
Finned tube radiators are generally used for heating or cooling air, featuring a compact structure and a large heat exchange area per unit area. They are widely used in textiles, printing and dyeing, petroleum, chemical, drying, power, and other fields.
Finned Tube Radiator By Process
Finned tube radiators can be classified according to their manufacturing process into Extruded Type (Bimetallic) finned tube radiators, Wound Type (L/LL/KL Foot) finned tube radiators, High-Frequency Welded (HFW) finned tube radiators, Embedded (G-Type) finned tube radiators, etc.
Our radiators utilize extruded bimetallic finned tubes to ensure zero contact thermal resistance for high-efficiency heat transfer.
Wound type (L/LL/KL Foot) finned tube radiators,for low-to-medium temperature applications with flexible mechanical-tension wrapping.
This radiator uses high-frequency current to spirally weld steel strips to the base tube, resulting in strong bonding and resistance to high pressure and high temperature.
This finned tube radiator uses G-type finned tubes, which are firmly bonded and resistant to vibration and thermal shock.
Finned Tube Radiator By Process
Finned tube radiators can be categorized by application into: HVAC finned tube radiators, industrial drying and heat treatment finned tube radiators, waste heat recovery finned tube radiators, petrochemical and power finned tube radiators, and agricultural greenhouse finned tube radiators, etc.
Finned tube radiators provide a stable heat source in wood drying rooms, food processing drying lines, and dyeing and finishing machines.
Finned tube radiators are installed in the flue gas duct at the tail end of boilers to recover waste heat from flue gas to preheat air or water, resulting in significant energy savings.
Finned tube radiators are used in air coolers to cool process fluids or condensed steam, especially as an alternative to water-cooling systems in water-scarce areas.
Finned tube radiators provide uniform heat to vegetable and flower greenhouses, preventing condensation and frost damage.
Engineering Design
We exclusively utilize HTRI and EDR design software from a renowned European software provider.
With 18 years of strategic partnership, we have successfully designed, manufactured, and exported heat exchangers to over 50 countries worldwide.
Customer feedback consistently confirms that actual cooling performance aligns precisely with theoretical design values.
We can provide detailed drawing after your order.We can also provide Custom services.
Finned Tube Radiator Water Pressure Test
Finned tube radiator water pressure test uses water as the medium. Water is injected into the equipment and pressurized to test the equipment’s sealing and pressure-bearing capacity.
Pressure testing is crucial for the safe operation of finned tube radiators. It allows for the timely identification and resolution of equipment problems, such as leaky seals and insufficient pressure-bearing capacity. Failure to identify and address these issues can lead to equipment failures and even accidents. Therefore, pressure testing is not only a test of equipment performance but also a safeguard for industrial safety.
Finned Tube Radiator Air Pressure Test
An air pressure test on finned tube radiator uses gas as the medium. Pressure testing tests equipment performance by applying pressure. Strictly following operating procedures ensures the safety and reliability of the process and results.
Pressure testing is essential after equipment installation or maintenance. It helps verify the equipment’s sealing and pressure-bearing capacity, ensuring that safety incidents such as leaks or ruptures do not occur during operation.
Nondestructive Magnetic Particle Testing of finned tube radiator
Nondestructive magnetic particle inspection of air coolers uses magnetic particles as a detection medium to observe defects in finned tube radiators.
Magnetic particle inspection has a sensitivity that can detect discontinuities as narrow as 0.1μm. By combining multiple magnetization methods, magnetic particle inspection is virtually unaffected by workpiece size and geometry, and can detect defects in all directions.
Finned Tube Radiator Package
Payment Terms:T/T, LC
Delivery: 15-30 days after payment
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Iron frame packing boxes and the desiccants are put into each package for continental transportation as well. or as required
Finned Tube Radiator Application
High-efficiency industrial finned tube radiators for heating significantly improve thermal efficiency by increasing the heat exchange area through the addition of fins. Widely used in factories, greenhouses, and other locations, they feature rapid heat dissipation, energy saving, corrosion resistance, and long service life. As a key heat exchange device in industrial heating systems, they effectively reduce energy consumption and ensure stable heating.
The circular fins finned tube radiator for vegetable greenhouses is specifically designed for agricultural greenhouses. Its circular fin structure ensures even heat distribution and prevents dust accumulation. It is corrosion-resistant, has strong pressure resistance, and effectively improves temperature stability within the greenhouse, promoting crop growth. This energy-efficient device is an ideal choice for modern intelligent greenhouse heating systems.
Steam finned tube radiators utilize steam as the heat medium, achieving efficient and rapid heat dissipation through densely packed fins that significantly expand the heat exchange area. With their compact structure and strong pressure resistance, they are widely used in industrial drying, heating, and greenhouse applications. This equipment boasts high thermal efficiency and significant energy savings, making it a core heat exchange element in steam heating systems.
This chemical industry spiral/wound finned tube radiator utilizes a high-frequency welding process to tightly wind steel strips around a base tube, forming high-strength spiral fins. It boasts extremely high heat exchange efficiency, high pressure resistance, corrosion resistance, and is not prone to dust accumulation. Specifically designed for chemical reactors, towers, and waste heat recovery systems, it can withstand harsh operating conditions, ensuring stable and efficient system operation.
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Finned Tube Radiator FAQs
A: The finned tube radiators can be customized. We can produce it according to your drawings, and we can sign a confidentiality agreement for your patented products. For more information, please contact us.
A: Always a pre-production sample,before mass production;always final inspection before shipment.
Inspection & Guarantee Certificate is supplied with shipment, and the Third Party Inspection is available.
A: One year after shipping.
A: We have workshop can supply all parts of the finned tube radiator, and 90% of spare parts can be distributed to any
place in the world within one week!
A: We can arrange for experienced engineers to provide online video guidance on product installation and train your staff on equipment operation and maintenance.
A: We have many professional and technical personnel, more competitive prices and better after-dales service than other companies.
A: Datang has high frequency resistance welding finned tube production line 18, extruded finned tube equipment 30, laser welding finned tube production line 2, wound finned tube production line 12. The annual capacity can reach 100,000 tons, the specification φ 18-273mm finned tube, according to the customer requirements of the standard production, service has exceeded 3000+ enterprises.