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FE Tubes
Applications:
The FE tube is a finned tube with an
optimized shape which features excellent thermodynamic properties. The airside pressure drop across
an elliptical finned tube is lower than the pressure loss in a roundtube exchanger, as less
downstream turbulence is developed. Turbulators on the finning which have a negligible impact on
pressure loss achieve excellent heat transfer rates. Rectangular fins keep the face area limited
and allow a compact design. Galvanization and the wide fin collar enhance heat transfer between the
tube and the fin and make the finned tube insensitive to thermal and mechanical stress. The fin
collar and the metal-to-metal joint strengthen the tube. Complete external galvanization provides
outstanding protection against corrosion. Cleaning by high-pressure water lancing pressents no
risk.
Manufacture:
Fins are punched and then lined up on the tube
by an automatic process. The galvanization that follows achieves excellent heat transfer and
corrosion resistance properties.
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Fin Material: Steel
Tube material: Steel/Stainless steel
Working temperature: 360°C.
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XE Tubes
Applications:
XE tubes are mainly used for high pressure
applications where space is limited. The tube combines the excellent properties of galvanized steel
tubes featuring steal finning with the geometry of round tubes. The design (two tubes with one fin)
minimizes the size of the exchanger. As the fins are very stiff, they can be cleaned easily by
high-pressure water without damage to the finning.
Manufacture:
The process for the manufacture of the XE tube
is similar to the FE tube production process.
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Fin Material: Steel
Tube Material: Steel/Stainless Steel
Working temperature: 360°C.
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L Tubes
Applications:
The L tube is a finned tube for low
temperature applications where a certain degree of protection of the tube wall against corrosion is
required. The broad contact surface between the tube and the finning enhances heat trasnfer.
Manufacture:
The foot of the fin is shaped first and the
first is tensionwound around the tube. Each fin is in contact with an adjacent fin and provides a
certain degree of protection in atmospheres which are not highly corrosive. The manufacturing
technology allows the use of relatively thin walled tubes. |
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Fin Material: Steel
Tube Material: Any metal
Working temperature: 130°C.
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K
Tube
Applications:
The K tube was developed from the L tube
for increased temperature levels and provides enhanced corrosion protection to the outside wall of
the tube.
Manufacture:
The foot of the fin is shaped first and the
fin is then tensionwound around the tube. Knurling tools both precede and follow the fin and lock
the fin material in the pre-knurled tube. The process increases the area available for heat
transfer. The joint between the fin and the tube is air tight and improves corrosion
protection.
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Fin Material: Aluminium
Tube Material: Any metal
Working temperature: 220°C.
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G-Fin Tube
Applications:
The G-fin tube was designed for high
thermal or mechanical stress.
Manufacture:
The finning is tension-wound into a helical
tube groove and embedded in the groove by high-pressure expansion. The material displaced is then
pressed against the fin sides.
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Fin Material: Aluminium
Tube Material: Any metal suitable for easy mechanical processing
Working temperature: 400°C.
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Bimetal Finned Tubes
Applications:
Manufacture:
The fins are extruded from a sleeve around the tube. In this process, the inside
diameter of the sleeve is reduced and the sleeve is pressed on the tube. The process produces a
strong joint with excellent heat transfer capacibilities.
Fin tube for applications under higher operating temperatures that and protect the
tube fully against atmospheric corrosion. The extruded fins feature 40% more aluminium than
comparable fins. They are very sturdy and resistant to mechanical stress and can therefore be
cleaned easily by steam or water. The tube material can be adapted to the fluid handled. The tube
is for this reason fit for nearly all aggressive chemicals.
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Fin Material: Aluminium
Tube Material: Any metal
Working temperature: 250°C.
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