HFW sprial SERRATED fin tubes apply in HEAT RECOVERY STEAM GENERATOR
Base tube material: SA192 OD31.8mm X3.2mmTHK X1760mm LG
Fin Material: CS 12.7mmHx0.8mmTHKx300FPM
Application: The High Frequency Resistance Welded Helical Fin Tubes are widely applied in fired heaters, heat exchanger, boilers, economizers, pre-heaters, heat pipes, heaters etc…
Capacity: Seven ERW High Frequency fining lines, daily capacity around 50 tons,length≤28meters;
Serrated Fin Tube
Manufacturing Process:
The fin strip is welded continuously and spirally wound onto a polished bare tube. And the tube and fins are bonded together by using high frequency resistance welding technique.
Material: Stainless Steel+Stainless Steel, Carbon Steel+Carbon Steel, Alloy+Alloy etc.
Bare tube OD: 16-219mm Fin Pitch: 3-25mm Fin Height: 5-30mm Fin Thick: 0.8-3mm
Sprial Serrated Fin Tube
| Name | Base tube (OD) mm |
Fin Pitch (mm) |
length (m) |
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| Min | Max | Min | Max | Min | Max | |
| Extruded aluminum fin tube | 12.7 | 51 | 2.1 | 10 | 0.5 | 20 |
| L/LL/KL aluminum fin tube | 19 | 51 | 2.1 | 3.2 | 0.5 | 15 |
| Embedded aluminum fin tube | 19 | 42 | 2.3 | 3.2 | 0.5 | 15 |
| Low fin tube | 12.7 | 32 | 0.8 | 2 | 0.5 | 20 |
| Spiral fin tube | 12.7 | 70 | 0.5 | 20 | ||
| ERW HF spiral fin tube | 16 | 219 | 3 | 25 | 0.5 | 28 |
| ERW HF spiral serrated fin tube | 16 | 219 | 3 | 25 | 0.5 | 28 |
| Serrated width(mm) 10 min~26 max |
Serrated depth(mm) 4 min~16 max |
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| ERW studded tube | 89 | 200 | 16 | 50 | 2 | 15 |
| DC ERW H/HH fin tube | 25 | 51 | 9 | 25 | 1 | 15 |
| H/HH fins | Length(mm) 60 min-150 max |
Thickness(mm) 1.5 min~4 max |
Width(mm) 30 min~50 max |
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