Elliptical Finned Tube Product Description:
Elliptical Fin Tube (oval fin tubes ) is by setting up rectangular or square-shaped fins over Oval tube. This Finned Tube maximizes the performance of Heat Exchangers and minimizes the loss of heat transfer and pressure.
Elliptical Finned Tube(Oval Tube Aluminum) Manufacturing Process:
An oval seamless tube is used as the base tube, and the finned tube is spirally wound with aluminum fin tape or copper fin tape under tension and tightly wound on the outer surface of the base tube.
Elliptical Finned Tube(Oval Steel Tubing) Advantages:
Elliptical tube of reflux zone and the windward area is much smaller, effectively reduce the air side, reduce energy consumption; At the same time when the number of tube, oval tube than the circular tube structure is more compact, Heat Exchanger of smaller volume, lower cost.
Elliptical Finned Tube(Oval Steel Tube) Properties:
(1) Compared with the round tube finned tube, the Elliptical Finned Tube is easier to achieve a compact arrangement, which reduces the overall volume of the entire heat exchanger, thereby reducing the footprint.
(2) Due to the shape characteristics of the Elliptical Finned Tube, the air-side resistance is small, and the heat transfer coefficient between the fluids increases; the thermal resistance in the tube is relatively small, which increases the heat transfer of the fluid in the tube.
(3) The heat transfer area of the Elliptical Finned Tube is larger than that of the circular tube of the same cross-sectional area, because the heat transfer periphery of the elliptical tube is relatively long under the same cross-sectional area.
(4) Rectangular steel fins are the most commonly used in Elliptical Finned Tubes, which have high strength, and the base tube is not suitable for frost cracking in winter and has a long service life.
(5) Since the Elliptical Finned Tube can be arranged more compactly, the front row tube has a greater impact on the rear row. The fin spacing of the rear row tube can be increased to reduce the flow resistance outside the tube, but the number of tube rows should not be too large.
Elliptical Finned Tube(Stainless Steel Oval Tube) Applications：
Those are applied for Heat Exchanger Field, Oil refineries, Petrochemical industry, Ship-building, Power Plant,
Refrigerator, Steam Engine and Evaporator.
Elliptical Finned Tube Specifications：
| Product Specification | ||
| Tube Wall Thk | 1.5~3.0(mm) | 0.06”~0.12” |
| Tube Length | ≤18,000 (mm) | ≤55 ft |
| Fin Thk | 0.4~0.6 (mm) | 0.016”~0.024” |
| Fin Height | ≤16.5 (mm) | ≤0.65” |
| Fin Pitch | 250~477 FPM | 6~12 FPI |
| Fin Type | Solid Plain | |
| Material Combinations | ||
| Fin Material | Aluminum (most common grade:Alu.1100, Alu.1060) | |
| Copper | ||
| Steel | ||
| Tube Material | C.S. (most common grade: A179, A192,SA210 GrA1/C,A106 Gr B ) | |
| S.S. (most common grade are TP304/304L,TP316/316L) | ||
| Copper (most common grade:UNS12200,14200, 70600, CuNi70/30, CuNi 90/10) | ||
| Titanium (most common grade: B338Gr2) | ||
| Applied Temperature | 850°C | |
| Type of Service | High temperature | |
