Lifeng offers a wide range of
extended heating surface tubes including Helical Finned Tubes in
both Solid and Serrated fin profiles, Plate Fins and Cast Iron
Fins. Finned Tubes are used in Power Generation Plants Heat
Recovery Steam Generators, Petro-Chemical Industires, Boiler
Plants, Economisers, Gas Coolers and other Heat Exchangers in a
wide range of applications. For Tube and Fin materials,
sizes technical information, please contact our sales
office. Extruded Finned Tube - This fin
type is formed from a bi-metallic tube consisting of an aluminium
outer tube and an inner tube of almost any material. The fin is
formed by rolling material from the outside of the exterior tube
to give an integral fin with excellent heat transfer properties
and longevity. Extruded fin offers excellent corrosion protection
of the base tube.
'G' Embedded Finned Tube - The
fin strip is wound into a machined groove and securely locked
into place by back filling with base tube material. This ensures
that maximum heat transfer is maintained at high tube metal
temperatures.
'L' Finned Tube The strip
material is subjected to controlled deformation under tension
giving the optimum contact pressure of the foot of the fin onto
the base tube thus maximising the heat transfer properties. The
foot of the fin considerably enhances the corrosion protection of
the base tube.
'LL' Finned Tube Manufactured in
the same way as the 'L' finned tube type except that the fin foot
is overlapped to completely enclose the base tube thereby giving
excellent corrosion resistance. This type of finned tube is often
used as an alternative to the more expensive extruded type fin in
corrosive environments.
'KL' Finned Tube Manufactured
exactly as the 'L' finned tube except that the base tube is
knurled before application of the fin foot. After application,
the fin foot is knurled into the corresponding knurling on the
base tube thereby enhancing the bond between the fin and tube,
resulting in improved heat transfer characteristics.
