Stainless Steel Internally Fin Tubes
The outer tube and inner tube are all made of stainless steel; It is primarily suitable for applications such as gas-liquid exchange, mixed gas condensation, after-cooling of compressed gas, and gas heating.
- Material: 304, 316L, 2205, SS310
- OD: 25, 28, 32 mm
- Cooling and heating of various process gases
- Condensation of various process gases
- Cooling and condensation for the recovery of various process gas off-gases
- Heat exchange applications involving high/low-viscosity liquids and water
Stainless Steel Inner Finned Tube Manufacturer / Supplier
The stainless steel internally finned tubes manufactured by Datang offer excellent corrosion resistance and pressure-bearing capabilities. Crafted from high-quality seamless stainless steel tubing with full traceability, they provide you with peace of mind and a worry-free, satisfying user experience.
Stainless Steel Inner Finned Tube Specification Table
| No. | Heat Transfer Tube Length (mm) | Heat Transfer Tube Outer Dia. (mm) | Heat Transfer Tube Inner Dia. (mm) | Center Tube Outer Dia. (mm) | Fin Effective Length (mm) | Fin Height (mm) | Fin Count | Fin Thickness (mm) | Inner Wall Heat Transfer Area (m2) | Fin Heat Transfer Area (m2) | Air-Side Heat Transfer Area (m2) | Water-Side Heat Transfer Area (m2) | Flow Channel Cross-Sectional Area (m2) | Fin Ratio |
| 1 | 480 | 25 | 23 | 8 | 400 | 7.5 | 14 | 0.1 | 0.035 | 0.168 | 0.203 | 0.038 | 0.000344 | 5.8438 |
| 2 | 680 | 25 | 23 | 8 | 600 | 7.5 | 14 | 0.1 | 0.049 | 0.252 | 0.301 | 0.053 | 0.000344 | 6.1287 |
| 3 | 880 | 25 | 23 | 8 | 800 | 7.5 | 14 | 0.1 | 0.064 | 0.336 | 0.400 | 0.069 | 0.000344 | 6.2841 |
| 4 | 1080 | 25 | 23 | 8 | 1000 | 7.5 | 14 | 0.1 | 0.078 | 0.420 | 0.498 | 0.085 | 0.000344 | 6.3820 |
| 5 | 1280 | 25 | 23 | 8 | 1200 | 7.5 | 14 | 0.1 | 0.092 | 0.504 | 0.596 | 0.101 | 0.000344 | 6.4493 |
| 6 | 1480 | 25 | 23 | 8 | 1400 | 7.5 | 14 | 0.1 | 0.107 | 0.588 | 0.695 | 0.116 | 0.000344 | 6.4984 |
| 7 | 1680 | 25 | 23 | 8 | 1600 | 7.5 | 14 | 0.1 | 0.121 | 0.672 | 0.793 | 0.132 | 0.000344 | 6.5358 |
Note: The commonly used inner finned tube lengths of our company are 480, 680, 880, 1080, 1280, 1480 (mm). Other specifications can be customized upon request.
The stainless steel inner finned tubes we can manufacture include:
- 304 Stainless Steel Inner-Finned Tube
- 316L Stainless Steel Internally Finned Tube
- 2205 Duplex Stainless Steel Inner-Finned Tube
- SS310 Stainless Steel Internally Finned Tube
Why choose stainless steel internally finned tubes?
1. Superior heat transfer performance compared to plain tubes
The internal fin structure of stainless steel internally finned tubes significantly increases the heat transfer surface area, enabling faster and more efficient heat transfer. Compared to standard plain tubes, they can transfer more heat within the same amount of space, thereby enhancing heat transfer efficiency and reducing energy consumption—factors of critical importance in demanding industrial sectors such as the chemical and petroleum industries.
2. Excellent inherent corrosion resistance
They are suitable for use in diverse and complex environments; they resist corrosion even under harsh conditions—such as high humidity or exposure to acids and alkalis—thereby extending the tube’s service life and reducing both replacement costs and maintenance requirements.
3. Stainless steel internally finned tubes possess high mechanical strength
They are capable of withstanding high pressures and vibrations, making them suitable for demanding operating conditions—such as high-temperature, high-pressure steam piping—thereby ensuring the stability and reliability of the piping system.
4. Stainless steel internally finned tubes also feature a compact structural design
Compared to other heat exchange equipment, they occupy less space and are easy to install and arrange; they are particularly suitable for locations with limited space, offering greater flexibility in system design and layout.
Benefits of using internally finned tube heat exchangers:
- Significantly improved heat transfer efficiency, with notable energy and water savings
- Capable of withstanding high temperatures and pressures; low pressure drop
- Compact size and small footprint
- Lower investment costs and a short payback period
- Reduced maintenance costs for the user
Destructive Testing of Internally Finned Tubes
Destructive testing of inner-finned tubes is a critical quality inspection step for evaluating structural strength, the integrity of heat transfer performance, and the reliability of manufacturing processes. By subjecting samples to physical or mechanical loads that exceed their rated limits, this process directly verifies their safety factors and ultimate load-bearing capacities.
Customizable Stainless Steel Internally Finned Tubes
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.
Internally Finned Tubes 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.
Compared to plain tubes, the internal fin structure creates a more complex flow path. Consequently, when handling media containing significant amounts of particulates or impurities, or media prone to fouling, special consideration must be given to flow channel dimensions, cleaning methods, and anti-fouling design.
For applications such as water systems, the control of water quality and impurities is particularly critical; research indicates that internally finned tubes place high demands on the cleanliness of the working fluid.
While simply increasing the tube diameter expands the flow area, it does not necessarily result in an effective increase in heat transfer capacity per unit volume.
Internal fins allow for increased heat transfer surface area within a relatively compact external footprint while simultaneously enhancing internal flow; they are therefore well-suited for applications where equipment size, heat transfer area, and overall energy efficiency are key considerations.
Yes. Internally finned or micro-finned tubes are widely researched and utilized for heat transfer during refrigerant evaporation and condensation. Specific structural designs must be determined based on factors such as the refrigerant type, evaporation/condensation temperatures, mass flow rate, pressure, and tube diameter.
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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.