Double S Type Fin Tube| Rectangular Finned Tube:

Double S Type Fin Tube is short for double square type fin tube, So it also called rectangular finned tubes, as the name suggests, have a rectangular cross-section for the fins instead of the more common circular or elliptical cross-sections. The rectangular shape provides increased fin surface area compared to circular fins, resulting in enhanced heat transfer performance. Rectangular fins are welded onto two round base tubes.

Double S Type Fin Tube Materials: 

Carbon Steels, Alloy Steels, Stainless Steel, Nickel Alloys, and others

Double S Type Fin Tube Sizes: 

Base Tube O.D.: 31.8 - 57 mm

Fin Size: 60 - 145 mm

Fin Pitch: 12.5 - 50 mm

Tube Length: 1 - 10 mm

Fin Thickness: 2 - 3 mm

Double S Type Fin Tube Fields of application:

Economisers, Biolers, Heat Exchangers. Often used in non-corrosive gas streams, minimal resistance to gas flow and the straight gas paths inhibit fouling and ease cleaning.

Double S Type Fin Tube Manufacturing process:

Square or rectangular fins are welded on two steel base tubes.

Double S Type Fin Tube Advantages:

High efficiency / Minimum power loss / easy cleaning

In order to forward you a promt offer we would be pleased to receive you detailed enquiry containing:

• Base tube material and quantity

• Base tube size

• Fin material

• Fin type

• Fin diameter or height

• Fin thickness

• Fins per inch, meter or fin pitch

• Lenght of plain, unfinned ends

(nessesary to roll or weld the tubes into tubeplate or assembly)

Double S Type Fin Tube| Rectangular Finned Tube