Internally Finned Tube Suppliers in China
What is internally finned tube?
An internally finned tube is a type of heat exchanger tube that has fins on the inner surface of the tube. These fins increase the surface area of the tube, which in turn increases the efficiency of heat transfer.
The fins on the inner surface of the tube can take various forms, such as helical, straight, or spiral. The fins are usually made of a high-conductivity material, such as copper or aluminum, and are tightly bonded to the inner surface of the tube to maximize heat transfer.
Inner finned tube construction:
Inner finned tubes consist of a base tube with fins on the inner surface. The fins are made of a high thermal conductivity material, such as copper or aluminum, and are tightly bonded to the base tube. The fins can be straight, helical, or spiral in shape, and they typically have a height of 0.5 to 1.5 times the diameter of the tube.
Internally finned tube working principle:
The working principle of inner finned tubes is based on the fact that heat transfer between fluids is proportional to the surface area available for heat transfer. By adding fins to the inner surface of the tube, the surface area available for heat transfer is increased, and the heat transfer rate is enhanced. The fins create turbulence in the fluid flow, which increases the rate of heat transfer by enhancing the mixing of the fluid and reducing the thickness of the boundary layer.
Quality control for internally finned tube
The quality of the internally finned tube is assured by hydrostatic or pneumatic testing, eddy current testing and tensile testing to verify the mechanical bond between the inner tube and the outer fins.
Inner Finned Tubes Delivery condition:
Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with Anti-rust at both ends of inner finned tube.
Internal fin tube material and specifications
1.T2 pure copper inner fin tube
Material: T2 pure copper
Specifications: outer diameter 28mm, length 296~880, fins 14~24, fin type I-V
Applicable media: 1. Water-steam 2. Water-oil
2.Stainless steel inner fin tube
Material: 304 316L 2205 SS310
Specifications: outer diameter 25mm, length 480~1680, fins 14~25
Applicable media: various process gas-liquid mixed materials
Internal finned tube size:
| Material | OD(mm) | Length(mm) | Fins | Fin type | Applicable media |
| T2 pure copper | 28 | 296~880 | 14~24 | I-V | 1. Water-steam
2. Water-oil |
| 304 316L 2205 SS310 | 25 | 480~1680 | 14~25 | I-V | Various process gas-liquid mixed materials |
Internally Finned Tube Material
Internally Finned Tube By Industy
Internal finned tube heat exchangers are mainly used in petroleum, chemical, pharmaceutical, metallurgy, electricity, power, refrigeration, heat pump, food and other industries. The main applicable working conditions are: 1. Cooling and heating of various process gases; 2. Condensation of various process gases; 3. Recovery cooling and condensation of various process gas tail gases; 4. High (low) viscosity liquid and water heat exchange and other working conditions.
Internal finned tubes are mainly suitable for use in gas-liquid exchange, mixed gas condensation, compressor gas post-cooling treatment, gas heating and other fields. In evaporation, condensation, purification crystallization, solvent recovery, tail gas recovery, etc.
Top Features of Internally Finned Tube
Datang offers the widest variety of sizes available for internally finned tubes in the industry.Its heat exchange efficiency can reach several times or even dozens of times that of ordinary heat exchangers.
1.Higher heat transfer efficiency: The fins increase the surface area available for heat transfer, which enhances the rate of heat transfer.
2.Compact size: Inner finned tubes can achieve the same heat transfer performance as plain tubes with a smaller size, which is important in applications where space is limited.
3.,Reduced fouling: The fins can disrupt the formation of fouling layers on the tube surface, which reduces the frequency of cleaning and maintenance.
4.Improved thermal performance: Inner finned tubes can achieve a higher thermal performance than plain tubes with the same fluid flow rate and heat transfer area.
Customizable Internally Finned Tube
We can customize the material, specification and length according to your requirements.Solve your problems anytime and anywhere. Customize fin tubes and equipment according to your needs. Provide free technical guidance. Welcome to customize with drawings, so that you can purchase without worries.
Difference Between Internally Finned Tube and Low Fin Tube
Internally finned tube: The internally finned tube has fins added inside the tube, which significantly increases the contact area between the fluid and the tube wall. This design creates turbulent flow in the tube, enhancing the heat and mass transfer process. It is suitable for situations where space is limited and efficient heat transfer is required, such as microchannel heat exchangers.
Low fin tube: Low fin tube is a heat exchange element formed by machining continuous spiral fins on the surface of a smooth tube. These fins increase the external surface area of the tubes, thereby improving the efficiency of heat transfer. Low fin tubes are widely used in condensers, evaporators and other equipment of air conditioners, and are an important component of these equipment.
Internally Finned Tube 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
Internally Finned Tube Quality Checks
Each of our inner finned tube is subjected to stringent quality checks.Inspection and Tests Performed:
1.Chemical Composition inspection。
2.Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Hardness, Impact Test).
3.Surface and Dimension Test.
4.No-destructive Test.
5.Hydrostatic Test.
Low Fin Tube Application
The inner fin tube compressor intercooler is a key component used in the compressor cooling system. Its main function is to cool and reduce the pressure of the outflowing high-temperature and high-pressure gas during the compression process of the compressor to achieve the effect of reducing overheating and overpressure, thereby protecting the compressor from damage.
Copper inner fin tubes for shell and tube heat exchangers is mainly composed of shell, heat transfer tube bundle, tube sheet, baffle and tube box. Its core component is the copper inner finned tube, and these fins are usually fixed on the base tube (such as copper tube) by welding, rolling or winding. The design of the fin increases the heat transfer area, so that heat can be transferred to the fluid more quickly, achieving efficient heat exchange.
Copper Internally Finned Tube for condenser and evaporator play a key role in refrigeration equipment, mainly used for the process of absorbing and releasing heat. The condenser is an important part of the refrigeration cycle, and its main function is to release the heat in the refrigerant to the environment. The evaporator is another important part of the refrigeration cycle, mainly used to absorb heat and change the refrigerant from liquid to gas.
Ingersoll Rand compressor intercooler is a cooling device designed for Ingersoll Rand compressors, using an internal finned tube heat exchanger structure. This intercooler can be used with American Ingersoll Rand CV12~C350M×4 compressors. It has the characteristics of large heat exchange area, high heat exchange efficiency, compact structure, etc., and can be comparable to the original imported cooler.
Related Product
Internally Finned Tube FAQs
A:Internally finned tube production line 2.
A: We can provide internal finned tube samples for free.
A: After you confirm inner finned tube sample details, the samples will be ready for delivery in 3-7days,and will be sent to you via express and arrive in 3-5days.
A: Internally finned tube can be customized, we can make the new thermoforming or extruding mode based on your drawings and we can sign a confidentiality agreement about your patented product, pls contact us for any further information.
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.