FINNED HEAT EXCHANGERS
FINNED-TUBE HEAT EXCHANGER
DAV Helix
Finned tube heat exchangers [FTHE] have tubes with transverse fins to enhance the heat exchange rate by increasing the effective heat transfer area between the tubes and surrounding fluid, which is usually gasous such as air or process gases, while inside tubes may flow either gas, water, steam or oil.
ABOUT
The materials used are chosen according to the applications: carbon steel or stainless steel for pipes, and copper, carbon steel, galvanized steel, stainless steel or aluminum alloy for fins. The DAV Helix are best suited for air coolers or high temperature and heavy-duty applications. Compared to round-tube plate-fin heat exchangers, the FTHE is suitable to much higher temperatures: up to 350°C depending to selected materials.
Mechanically is very robust: each finned tube can slide absorbing different thermal dilatations without deformation of the structure and stress to weldings. An exclusive Dav Coil's manufacturing procedure creates coils by bending finned tubes instead of welding return bends, which reduces possible leakages and cracks.
ADVANTAGES
Heavy duty
applications
Acid proof materials for corrosive environments
Up to 90%
of welded joints less
Up to
350°C
DAV Helix Technical Data
Related
Products
The technical staff of DAV COIL is able to design heat exchangers according to customer needs, using sophisticated computerized calculation systems.
