Low Fin Tubes

Panval manufactures low fin tubes for heat exchangers used mainly in LNG facilities, chemical and petrochemical plants, refineries, power plants, renewable energy and naval systems.

Low fin tubes are obtained through a rolling process, which is a cold plastic deformation directly on the outer surface of the tube.

The low finning process greatly increases the surface area of heat exchange.
Low fin tubes


  • Low-alloy steels
  • Carbon steel
  • Stainless steel (austenitic, ferritic, super austenitic)
  • Duplex alloys (Lean Duplex, Duplex and Super Duplex)
  • Monel alloys
  • Nickel alloys
  • Copper alloys
  • Titanium

Production Capacity (approximate)

Tube Diameter Wall Thickness Fin Height
12.7 / 31.75 mm
0.5 / 1.25 in
1.245 / 3.404 mm
0.049 / 0.134 in
Max. 1.40 mm / 0.055 in
and depending on the required fin pitch
Tube Length
Max. 22000 mm
866 in
For different technical specifications, please feel free to contact us. Together we can find the most suitable solution.

Fin Pitch

  Copper Ferritic Austenitic Titanium Alloys
Fins/inch 16 to 40 19 to 30 19 to 36 19 to 36 16 to 40
Fins/meter 630 to 1574 748 to 1181 748 to 1417 748 to 1417 630 to 1574
Dimensional Tolerances
Our company meets the generally required standards for low fin tubes, namely:
  • ASTM/ASME B/SB 111 (Copper & Copper Alloys)
  • ASTM/ASME A/SA 498/498M (Carbon steel)
  • ASTM/ASME A/SA 1012/1012M (Stainless steel)
  • ASTM/ASME B/SB 891/891M (Titanium)
Quality Checks
We perform air tests at a range between 10 bar and 18 bar for 10 seconds and/or hydraulic pressure leak tests if requested by the customer.
We perform non-destructive tests (after finning).
Depending on the client's needs, we are available to perform special tests and treatments.

We offer different packaging solutions in order to meet your needs:
  • hexagonal and protected bundles
  • nylon
  • wooden crates and/or cages.
These methods will ensure a safe and organized transportation of your products.

Dimensional Checks

We measure:
  • outside diameter of plain end (D)
  • inside diameter of plain end (Di)
  • wall thickness of plain end (W)
  • diameter over fins (do)
  • root diameter (dr)
  • inside diameter of fin section (di)
  • wall thickness under fin (Wf)
  • mean fin thickness (Fm)
  • height of fin (Fh)
  • fin pitch
We perform a complete visual check.
dimensional checks low fin tubes


registered office panval
Registered office
Via Fontana, 11
20122 Milano (MI) - Italy
VAT number and fiscal code: 11491870967
perational headquarters panval
Operational headquarters
Via Ansaldo, 5/7
47122 Forlì (FC) - Italy
team panval
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