Copper low finned tube
used in condensers and evaporators for air conditioning, refrigeration, power plants, marine systems, gas turbines, petroleum equipment, and chemical industry heaters.
Product Overview
| Product Name | Fin Type | ||
| Manufacturing Process | Bonding Method | ||
| Tube Material | Fin Material | ||
| Tube Outside Diameter | Tube Length | ||
| Fin Height | Fin Pitch (FPI) | ||
| Operating Temperature | Max Temperature | ||
| Heat Transfer Performance | Surface Condition | ||
| Mechanical Performance | Corrosion Resistance | ||
| Forming Capability | Dissimilar Metal Support | ||
| Key Advantages | |||
Copper Evaporator tube and Condenser Tube are the hot products that we've been supplying. Copper low fin evaporator tube is a type of enhanced heat transfer tube with integrally formed low fins on the outer surface. It is specifically designed for use in evaporators, where refrigerant absorbs heat and changes phase from liquid to vapor. Copper low fin condenser tube is an integral finned tube with low-profile fins formed on the outer surface, used in condenser applications where vapor releases heat and condenses into liquid.
| Evaporator Tube | |||||||||
| Plain section | Fin section | ||||||||
| SQ | OD(mm) | OD(mm) | Thk(mm) | Min. Thk(mm) | Ridge Height(mm) | Nominal Outside Surface Area(m2/m) | Actual Outside Surface Area(m2/m) | Nominal Inside Surface Area(m2/m) | Actual Inside Surface Area(m2/m) |
| 1 | 15.88 | 15.7 | 0.635 | 0.56 | 0.30 | 0.0499 | 0.1698 | 0.0430 | 0.0657 |
| 2 | 19.05 | 18.85 | 0.635 | 0.56 | 0.38 | 0.0598 | 0.2056 | 0.0529 | 0.0901 |
| 3 | 19.05 | 18.85 | 0.711 | 0.63 | 0.38 | 0.0598 | 0.2056 | 0.0526 | 0.0901 |
| 4 | 19.05 | 18.85 | 0.889 | 0.80 | 0.38 | 0.0598 | 0.2056 | 0.0523 | 0.0895 |
| 5 | 25.40 | 25.25 | 0.635 | 0.56 | 0.40 | 0.0798 | 0.2783 | 0.0729 | 0.1219 |
Suitable for flooded or falling film evaporators.
The surface of the evaporator tube is densely covered with micro-pores, with interconnected channels beneath these pores. This structure increases the density of nucleation sites and enhances the liquid replenishment rate to the cavities, thereby promoting boiling heat transfer performance.
Compared to a plain smooth tube, the overall heat transfer coefficient is increased by 3 to 5 times.
Evaporators designed based on the thermal characteristics of this evaporator tube type can achieve a reduced evaporator volume, require fewer tubes, lower copper material consumption and manufacturing costs, and decrease energy consumption during operation.
| Condenser Tube | |||||||||
| Plain section | Fin section | ||||||||
| SQ | OD(mm) | OD(mm) | Thk(mm) | Min. Thk(mm) | Ridge Height(mm) | Nominal Outside Surface Area(m2/m) | Actual Outside Surface Area(m2/m) | Nominal Inside Surface Area(m2/m) | Actual Inside Surface Area(m2/m) |
| 1 | 12.70 | 12.65 | 0.600 | 0.50 | 0.20 | 0.0399 | 0.1101 | 0.0348 | 0.0433 |
| 2 | 15.88 | 15.7 | 0.635 | 0.56 | 0.30 | 0.0499 | 0.1733 | 0.0429 | 0.0625 |
| 3 | 19.05 | 18.85 | 0.635 | 0.56 | 0.35 | 0.0598 | 0.2282 | 0.0529 | 0.0858 |
| 4 | 19.05 | 18.85 | 0.711 | 0.63 | 0.35 | 0.0598 | 0.2387 | 0.0526 | 0.0858 |
| 5 | 19.05 | 18.85 | 0.889 | 0.80 | 0.35 | 0.0598 | 0.2482 | 0.0523 | 0.0852 |
| 6 | 25.40 | 25.15 | 0.635 | 0.56 | 0.40 | 0.0798 | 0.3098 | 0.0725 | 0.1202 |
| 7 | 25.40 | 25.15 | 0.711 | 0.63 | 0.40 | 0.0798 | 0.3229 | 0.0722 | 0.1194 |
The specially designed outer fin structure increases the heat transfer surface area and reduces the thickness of the liquid film on the fins, thereby enhancing the condensation heat transfer coefficient. Additionally, the internal helical grooves strengthen heat transfer inside the tube. The combined effect of enhanced heat transfer on both sides significantly improves the overall heat transfer coefficient.
Compared to a plain smooth tube, the overall heat transfer coefficient is increased by 3 to 5 times.
For condensers utilizing this type of enhanced tube, the high heat transfer coefficient and large effective surface area reduce the number of tubes required. This leads to a smaller condenser volume, lower copper material consumption, reduced manufacturing costs, and decreased energy consumption during operation.
| Inner Grooved Tube | ||||||||||
| Plain section | Fin section | |||||||||
| SQ | OD(mm) | Thk(mm) | OD(mm) | Thk(mm) | Min. Thk(mm) | Ridge Height(mm) | Nominal Inside Surface Area(m2/m) | Actual Inside Surface Area(m2/m) | Nos of internal ribds | Internal Fin Helix Angle |
| 1 | 7.00 | 0.40 | 7.00 | 0.30 | 0.27 | 0.18 | 0.0194 | 0.0356 | 50 | 18 |
| 2 | 7.94 | 0.40 | 7.94 | 0.30 | 0.27 | 0.20 | 0.0227 | 0.0375 | 50 | 18 |
| 3 | 9.52 | 0.40 | 9.52 | 0.30 | 0.27 | 0.20 | 0.0277 | 0.0488 | 60 | 18 |
| 4 | 9.52 | 0.50 | 9.52 | 0.40 | 0.35 | 0.20 | 0.0274 | 0.0483 | 60 | 18 |
| 5 | 9.52 | 0.70 | 9.52 | 0.60 | 0.55 | 0.20 | 0.0268 | 0.0472 | 60 | 18 |
| 6 | 12.70 | 0.60 | 12.70 | 0.50 | 0.45 | 0.25 | 0.0368 | 0.0668 | 60 | 18 |
| 7 | 12.70 | 0.65 | 12.70 | 0.55 | 0.50 | 0.25 | 0.0364 | 0.0658 | 60 | 18 |
| 8 | 12.7 | 0.70 | 12.70 | 0.60 | 0.55 | 0.25 | 0.0364 | 0.0650 | 60 | 18 |
| 9 | 15.88 | 0.60 | 15.88 | 0.48 | 0.43 | 0.30 | 0.0467 | 0.0876 | 75 | 24 |
| 10 | 15.88 | 0.70 | 15.88 | 0.58 | 0.53 | 0.30 | 0.0464 | 0.0812 | 75 | 24 |
| 11 | 15.88 | 0.80 | 15.88 | 0.63 | 0.58 | 0.30 | 0.0459 | 0.0785 | 75 | 24 |
Water coolers are used directly in air conditioning systems. The water outside the tubes is cooled by the boiling and expansion of the refrigerant inside the tubes. The average heat transfer coefficient of internally threaded tubes is 1.5 to 2 times that of plain tubes.
 | d= outside diameter of plain end |
Company strength & Quality Assurance
| Established | 2006 | Employees | 188 |
| Annual Sales | USD 100 Millions | Business Type | Manufacturer & Exporter |
| Main Products | Finned Tubes, Titanium Tubes | Annual Capacity | >1000 Tons |
| Quality Inspection | UT, ET, Hydro Test | Certifications | ISO9001, ISO14001, ISO45001, PED |
| Main Applications | Power, Petrochemical, Refrigeration | Industries | Power & Energy Oil & Petrochemical HVAC & Refrigeration |
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