UNICON SYSTEM CO., LTD.
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| Specification of High Frequency Welded (HFW) Finned Tube | |
|---|---|
| Tube/Pipe Material | Carbon Steel, Stainless Steel, Copper, Inconel, Titanium |
| Fin Material | Carbon Steel, Stainless Steel, Copper, Aluminum |
| Tube/Pipe OD | 8.0mm ~ 219.1mm |
| Fin Type | Solid and Serrated |
| Fin Height | 5.0mm – 20mm( 50% of tube OD, up to 80% in special request) |
| Fin Thickness | 0.4mm ~ 3.0mm |
| Fin per Meter (FPM) | Max. 520 fin (based 0.4t fin) |
| Tube Length | Max. 27,000 mm |
| Application | – Oil & Gas: ACHE(Air cooled), HVAC, Economizer, Heat exchanger, Air Preheater, Fired Heater – Power plant: HRSG, Nuclear, GGH(Desulfurization) |
| Advantage of High Frequency Welded(HFW) Finned Tube vs Embedded Fin (G type) & Extrude Type | |
|---|---|
| Weldability | High Frequency Welded (HFW) can be applied dissimilar tube and fin welds instead of G-Type and Extrude Type |
| Efficiency | Higher heat exchange efficiency, 10% higher than G-Type, 15% higher than Extruded |
| Cost Save for Material | Tube material cost saving, 10% for G-type (0.3mm Groove), Much less for Extruded Type |
| Flexible Fin Pitch | Smaller and lighter equipment |
| Tube Size and Quantity | Minimum 10% reduce tube size and quantity |
| Higher Temperature | Applied to higher temperature depend on design temperature |
| Strong Durability & Maintenance | Strong durability with welded fin, Easy handling and waterjet washed. |
| Macro-Picture of Fin Connection Details | |
|---|---|
High Frequency Welded (HFW) Fin |
Embedded Fin (G type) 
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