The S-type steam heat dissipation pipe is a standard model of heat dissipation pipe, suitable for steam heating systems. The inlet and outlet joints are placed on both sides of the pipe, so curved pipes are used to eliminate stress caused by thermal expansion and other reasons.

The finned tubes are made by winding a 10 × 0.2mm corrugated copper strip around a Φ 16 × 1mm copper tube, forming a spiral shape with three different pitch sizes of 3.2mm - "R", 4.2mm - "M", and 6.5mm - "T". The "R" pitch has the largest heat dissipation area due to its small pitch size; The "M" type has a larger spacing, resulting in lower heat dissipation and air resistance; The "T" spacing has the maximum spacing and is suitable for situations where steam pressure is high but air temperature rise is low.

There are various combinations of S-shaped heat dissipation tubes with different surface tube lengths, tube numbers, row numbers, and fin spacing, totaling 765 sizes and specifications.

After the winding of the finned tube is completed, the surface is dipped in tin alloy to ensure a tight contact between the fins and the tube, and to achieve a beautiful and corrosion-resistant effect.

The connection between the finned tube and the intake and return main pipe is made by brazing, and other process details are strictly required to ensure good performance, durability, easy installation, and cost-effectiveness of the radiator.