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Fin TubeExtruded fin tube

Copper & aluminum combined fin tube




 One of reference drawings 


  Bare tube general material: Copper, Alloy, Carbon Steel, Stainless Steel

  Bare tube OD: 8-51mm

  Fin general material: Copper, Aluminum

  Fin pitch: 1.6-10mm

  Fin height: <17mm

  Fin thickness: 0.2-0.4mm

Extruded finned tube
Aluminum finned tube (steel-aluminum composite) technology parameters
 Finned tube is composited with iron-aluminum or copper-aluminum tube rolling out the fin, which feathers are tightness, small heat resistance, good heat transfer performance, high strength, small flow losses, strong corrosion resistant performance, not easy to deformation and a long working lifetime in cold and hot condition,etc.
Overall rolling fin is smooth and has no burr, so it is easy to clean. It is easy to make the fin surface wet and cooled with water when makes it cold during heating air-conditioning engineering. In the situation with drying, heating and other heat exchanging, its surface is handles by anodizing, which with beautiful color and luster, and can effectively prevent surface corrosion.
Aluminum rolling finned tube is rolling as a whole by the aluminum tube, which has the feather that no contact thermal resistance, high strength, thermal shock and mechanical shock,  good thermal performance, and considerable expansion heat transfer surface. The heat exchanger with this kind of finned tube is ahead of the string or around the plate ones.
According to user needs, we can produce all kinds of steel strip winding finned tube and steel aluminum composite finned tube.
As the heat transfer element finned tube works long-term in high temperature and flue gas condition, such as finned tube in the boiler heat exchanger which use conditions are as high temperature and high pressure and corrosive atmosphere, should have a high performance metrics and they are as follows:Anti-corrosion
Anti-wearlower contact resistance Higher StabilityAnti-dust stratification.

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