Inner Grooved Low Fin Tube Suppliers in China
Inner Grooved Low Finned Tubes
Inner Grooved Low Finned Tubesalso known as steam finned tubes, inner finned tubes, low Inner Grooved Low Finned Tubesare ordinary heat exchange tubes that are rolled to form threads on their inner surface, and the fins are removed from the bare tube by rolling rolls The outer wall rolls out. A high-efficiency heat exchange tube type with tubes and fins in the same tube.
Inner Grooved Low Finned Tubes are usually made of copper and are always made with vertical rods for easier installation.
The strengthening effect of this Inner Grooved Low Finned Tubes is outside the tube. The strengthening effect on the medium is reflected in the fact that the threaded fins increase the heat exchange area on the one hand; on the other hand, when the shell-side medium flows through the surface of the threaded pipe, the surface threaded fins have a dividing effect on the laminar flow edge layer and thin the boundary. layer thickness. Moreover, the turbulence formed on the surface is also stronger than that of the light pipe, which further reduces the thickness of the boundary layer. As a result of the combined effect, the tube type has a high heat transfer capacity. When this tube type is used for evaporation, it can increase the number of bubbles formed on the unit surface and improve the boiling heat transfer capacity; when it is used for condensation, the threaded fins are very conducive to the dripping of the condensate at the lower end of the tube, reducing the liquid film. Thin, thermal resistance is reduced, and condensation heat transfer efficiency is improved.
Quality control for internal grooved copper tube
The quality of the Internal grooved copper 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.
Low 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 low finned tube.
Low fin tubes size:
| Description | Size dimension |
|---|---|
| Tube OD | Min. 12,7mm / Max. 31,75mm |
| Tube thickness (plain section) | Min. 1,245mm / Max. 3,404mm |
| Fin pitch | 19 – 26 – 27 – 28 – 30 – 36 fins per inch |
| Fin height | Max. 1,40mm |
| Tube length | Max. 25000mm |
| Material | Standard |
|---|---|
| Carbon Steel | SA 179 / A 179 |
| Carbon Steel | SA 210 / A 210 |
| Carbon Steel | SA 334 / A 334 |
| Stainless Steel | SA 213 / A 213 |
| Duplex Stainless Steel | SA 789 / A 789 |
| Copper & Cu Alloys | SB 111 / B 111 |
| Titanium & Ti Alloys | SB 338 / B 338 |
Inner Grooved Low Fin Tube Material
The base tube is made of Carbon Steel(SA 179/A 179,SA 210/A 210）
The base tube is made of stainless steel tube(SA 213 / A 213）
The base tube is made of copper tube（SB 111 / B 111）
The base tube is made of Titanium & Ti Alloys（SB 338 / B 338）
Inner Grooved Low Finned Tube By Industy
Inner Grooved Low Finned Tubes are mainly used in petrochemical, power, paper, tobacco, building heating and other industries, such as air coolers, air heaters, food industry vegetable protein powder, starch and other air heater spray drying systems.
As long as the medium on the shell side is relatively clean, free from corrosion and scaling, low-thread finned tubes can be used as heat exchange elements to form a low-thread finned-tube type high-efficiency heat exchanger.
The working temperature is up to 250 degrees.
Top Features of Low Fin Tubes
Datang offers the widest variety of sizes available for Low fin tubes in the industry.Its heat exchange efficiency can reach several times or even dozens of times that of ordinary heat exchangers.
1.Increased Heat Transfer: The external fins of the low finned tube greatly enhance heat transfer and enable efficient heat exchange between the fluid inside the tube and the surrounding environment.
2.Compact Design: Low finned tubes have a compact design and provide greater heat transfer capabilities than plain tubes, resulting in smaller equipment sizes and a smaller overall footprint.
3.Reduced Material Costs: The use of low finned tubes reduces the amount of material needed to achieve the same level of heat transfer performance, thus potentially reducing manufacturing costs.
4.Corrosion Resistance: Low finned tubes are often made of corrosion resistant materials like copper or stainless steel which extends the life of the tube and lowers maintenance costs.
5.Increased Efficiency: Due to the increased heat transfer from the external fin, the low finned tube can operate at higher efficiency and lower costs than plain tubes.
6.Low finned tubes are commonly used in applications such as heat exchangers, air conditioning systems, and power generation facilities.
Customizable Integral Low 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.
Low Fin 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
Inner Grooved Low Fin Tube Quality Checks
Each of our internal thread copper 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.
Integral Low Finned Tube Application
In the condenser, low-fin tubes increase the surface area, allowing heat to be transferred to the surrounding air more efficiently. This design not only improves heat exchange efficiency, but also reduces the generation of scale and dirt, thereby extending the service life of the equipment.
In power plants, condensers using low-fin tubes can improve vacuum and thus increase power generation efficiency. In addition, low-fin tubes have strong deformation resistance and long service life, can work stably in high temperature and high pressure environments, reduce maintenance and replacement frequency, and thus reduce operating costs.
Related Product
Low Fin Tube FAQs
A: Low fin tube production line 6.
A: We can provide inner grooved low fin tube samples for free.
A: After you confirm internal grooved copper 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: Internal thread copper 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.