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Embedded(G Type) |
Fins are embedded into 0.3mm groove Perfect bonding between tubes and fins.
Acceptable level for corrosive atmosphere Max.
use temperature 400℃ Expansive than footed type due to continuous consumption of groove |
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L(Footed), LL(Double Footed), KL(Knurled) Type |
Fins are covered by fins through entire tube length, excellent for corrosive atmosphere
Fins are tension wound, less bonding in lase L, LL Type
Additional Knurling for KL type for better contact between fins and tube, good for thermal transfer properties Max.
use temperature 150℃(L),180℃(LL), 250℃(KL) |
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Extruded & Extruded Serrated Fin |
Widely used for corrosive atmosphere because the bare tube is fully covered by outer aluminum fins which are formed by severe compressing onto aluminum pipes Higher mechanical strength Max. use temperature 230℃ Cost is most expansive type |
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ECrimped Fin |
Stainless, Carbon steel fin material (TP304, A1008, Copper) Max.
use temperature 250℃ Higher mechanical strength Perfect for corrosive environment Fins are blazed to the tube, providing good bond pressure |
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Copper L,LL Fin |
Fin material is pure copper B 152 C12200 (99.9%) Good thermal conductivity and heat transfer rate Widely used for cooler, chiller type low density& heat transfer fluids need to be exchanged with high heat volume Rubber fitting to support finned tubes are casted by plastic casting machine |
