Finned Heat Exchanger Tubes
Finned tubes for condensers, process heat exchangers, air coolers and heat-recovery equipment.
DLSS supplies finned heat exchanger tube solutions, including integral low-finned and high-frequency welded designs, with project-specific tube materials, fin geometry, plain sections and inspection requirements.
Send your drawing for a review of the tube specification, fin construction, finished dimensions and delivery requirements.
Fin Construction
Integral Low Fin · HF Welded
Material Review
Base Tube · Fin Material
Custom Geometry
Height · Pitch · Finned Length
Inspection Support
Dimensions · Required Testing · TPI
Finned Tube Types
Fin construction should be selected together with the operating conditions, tube material, required surface area and equipment design.
Integral Low-Finned Tubes
Low-profile fins are formed directly from the tube material, creating an enhanced surface without attaching a separate fin strip.
The finished product is specified by its fin profile, remaining wall thickness, finned length and plain sections. Integral construction describes the connection between the fins and tube; the permitted base tube may be seamless or welded, depending on the product specification.
Key Parameters
Fin OD · Root Diameter · Pitch · Minimum Wall Beneath Fins
High-Frequency Welded Finned Tubes
A separate metal fin strip is wound helically around the base tube and continuously joined by high-frequency resistance welding.
The specification should identify both the tube material and fin material, together with fin dimensions, weld requirements and inspection criteria. Solid and serrated fin profiles require separate review against the project design.
Key Parameters
Tube & Fin Materials · Fin Height · Pitch · Fin-to-Tube Weld
Other Finned Tube Designs
For other fin attachments or enhanced-surface designs, submit your drawing and operating requirements for feasibility review.
Availability is confirmed against the proposed construction, material combination, dimensions and inspection requirements before quotation.
Base Tube & Fin Material Options
Material selection depends on process conditions, corrosion exposure, operating temperature and the selected fin construction.
Base Tube Materials
