LP spa Steel Fin Tubes are helically wound and continuous welded to the tube by high frequency electric resistance welding of solid or serrated steel fins. This produces an homogeneous , clean and continuous fin – to – tube bond with no additional weld material, for a very efficient heat flow and resistance to corrosion.
This manufacturing process is carried out under strict standards. We also produce finned tubes with intermediate plain portions where required.

The use of high-frequency current results in very localised heating of the tube surface and the edge of the fin. This skin effect produces higher weld speeds, hence post-weld heat treatment is not considered necessary because of the superficial nature of the changes in the microstructure.

– Uses of welded finned tubes
The main uses for high frequency welded finned tubes are in the heat recovery associated with boilers for power generation and in furnace applications for the petrochemical industry.

– Sizes and materials
Our high frequency welding finning machines are capable of handling tube diameters from 33 mm o/d to 273 mm o/d and tube lengths of up to 26 meters. Fin sizes range from 6 mm to 38 mm high and from 0.8 mm to 3 mm thick.

Any combination of the following materials may be used for fin and tube: carbon, alloy, stainless steels and high nickel alloys.

LP spa Steel Fin Tubes are helically wound and continuous welded to the tube by high frequency electric resistance welding of solid or serrated steel fins. This produces an homogeneous , clean and continuous fin – to – tube bond with no additional weld material, for a very efficient heat flow and resistance to corrosion.
This manufacturing process is carried out under strict standards. We also produce finned tubes with intermediate plain portions where required.

The use of high-frequency current results in very localised heating of the tube surface and the edge of the fin. This skin effect produces higher weld speeds, hence post-weld heat treatment is not considered necessary because of the superficial nature of the changes in the microstructure.

– Uses of welded finned tubes
The main uses for high frequency welded finned tubes are in the heat recovery associated with boilers for power generation and in furnace applications for the petrochemical industry.

– Sizes and materials
Our high frequency welding finning machines are capable of handling tube diameters from 33 mm o/d to 273 mm o/d and tube lengths of up to 26 meters. Fin sizes range from 6 mm to 38 mm high and from 0.8 mm to 3 mm thick.

Any combination of the following materials may be used for fin and tube: carbon, alloy, stainless steels and high nickel alloys.

LP spa Steel Fin Tubes are helically wound and continuous welded to the tube by high frequency electric resistance welding of solid or serrated steel fins. This produces an homogeneous , clean and continuous fin – to – tube bond with no additional weld material, for a very efficient heat flow and resistance to corrosion.
This manufacturing process is carried out under strict standards. We also produce finned tubes with intermediate plain portions where required.

The use of high-frequency current results in very localised heating of the tube surface and the edge of the fin. This skin effect produces higher weld speeds, hence post-weld heat treatment is not considered necessary because of the superficial nature of the changes in the microstructure.

– Uses of welded finned tubes
The main uses for high frequency welded finned tubes are in the heat recovery associated with boilers for power generation and in furnace applications for the petrochemical industry.

– Sizes and materials
Our high frequency welding finning machines are capable of handling tube diameters from 33 mm o/d to 273 mm o/d and tube lengths of up to 26 meters. Fin sizes range from 6 mm to 38 mm high and from 0.8 mm to 3 mm thick.

Any combination of the following materials may be used for fin and tube: carbon, alloy, stainless steels and high nickel alloys.

LP spa Steel Fin Tubes are helically wound and continuous welded to the tube by high frequency electric resistance welding of solid or serrated steel fins. This produces an homogeneous , clean and continuous fin – to – tube bond with no additional weld material, for a very efficient heat flow and resistance to corrosion.
This manufacturing process is carried out under strict standards. We also produce finned tubes with intermediate plain portions where required.

The use of high-frequency current results in very localised heating of the tube surface and the edge of the fin. This skin effect produces higher weld speeds, hence post-weld heat treatment is not considered necessary because of the superficial nature of the changes in the microstructure.

– Uses of welded finned tubes
The main uses for high frequency welded finned tubes are in the heat recovery associated with boilers for power generation and in furnace applications for the petrochemical industry.

– Sizes and materials
Our high frequency welding finning machines are capable of handling tube diameters from 33 mm o/d to 273 mm o/d and tube lengths of up to 26 meters. Fin sizes range from 6 mm to 38 mm high and from 0.8 mm to 3 mm thick.

Any combination of the following materials may be used for fin and tube: carbon, alloy, stainless steels and high nickel alloys.

LP spa Steel Fin Tubes are helically wound and continuous welded to the tube by high frequency electric resistance welding of solid or serrated steel fins. This produces an homogeneous , clean and continuous fin – to – tube bond with no additional weld material, for a very efficient heat flow and resistance to corrosion.
This manufacturing process is carried out under strict standards. We also produce finned tubes with intermediate plain portions where required.

The use of high-frequency current results in very localised heating of the tube surface and the edge of the fin. This skin effect produces higher weld speeds, hence post-weld heat treatment is not considered necessary because of the superficial nature of the changes in the microstructure.

– Uses of welded finned tubes
The main uses for high frequency welded finned tubes are in the heat recovery associated with boilers for power generation and in furnace applications for the petrochemical industry.

– Sizes and materials
Our high frequency welding finning machines are capable of handling tube diameters from 33 mm o/d to 273 mm o/d and tube lengths of up to 26 meters. Fin sizes range from 6 mm to 38 mm high and from 0.8 mm to 3 mm thick.

Any combination of the following materials may be used for fin and tube: carbon, alloy, stainless steels and high nickel alloys.