Profins can supply either solid or serrated welded finned tubes. These tubes are manufactured specifically to suit the high temperature environment found in furnaces/boilers and waste heat recovery equipment.
Our high frequency serrated fin is a metal strip that has been serrated or cut and then helically wound around the specified tube. The fin is welded to the tubular base using the high frequency weld process.
The fin can be applied to a wide variety of tubular material with configurations to suit your requirements.
TUBE SIZES
FIN HEIGHTS
FIN THINKNESS
SEGMENT WIDTH
FIN PITCH
MATERIAL
3/4" O.D. TO 8" NPS (8.625" O.D.)
3/8" TO 1 1⁄2"
20 GA. (.035") TO 12 GA. (.102")
SEGMENTED WIDTH: 4.5MM OR 8MM
4.5MM OR 8MM
1 TO 7 FINS PER INCH
ANY MATERIAL OR COMBINATION THAT
CAN BE RESISTANCE OR ARC WELDED.
Integral low fin tube has the advantage that it can improve the thermal performance of a heat exchanger without the necessity for changing shell size, flow arrangement or the repositioning of piping. The external surface of the tube is increased by the formation of "low fins" by direct extrusion from the material of the base tube.
TUBE SIZES AVAILABLE
FINS/INCH AVAILABLE
MATERIALS AVAILABLE
TYPICAL EXTENDED SURFACE RATIOS
(FINNED/OUTSIDE BARE SURFACE)
TUBE OD: 12.7MM, 15.88MM 19.05MM, 25.04MM
TUBE THICKNESS: >=1.25MM
TUBE LENGTH: UP TO 12,500MM
16, 19, 26, 28, 32 & 36 FINS/INCH DEPENDENT
ON MATERIAL AND CLIENT REQUIREMENTS.
1) CARBON & LOW ALLOY STEEL
2) STAINLESS STEEL: TYPE 304, 304L, 316, 316L
AND 321 PLUS DUPLEX.
3) COPPER BASE ALLOYS: I.E. ALLOY 443, 687, 706,
715 ETC.
4) TITANIUM & HIGH NICKEL ALLOYS
19.05MM OD WITH 19 FINS/INCH: 270%
25.4MM OD WITH 26 FINS/INCH: 330%
