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Advantages of hot dip galvanized finned tube
1. The cost of hot-dip galvanized fin tube treatment is low: the cost of hot-dip galvanizing antirust is lower than that of other paint layers;
2. The hot-dip galvanized finned tube is durable: in the suburban environment, the standard hot-dip galvanized antirust thickness can be maintained for more than 50 years without repair; in urban areas or offshore areas, the standard hot-dip galvanized antirust coating can be maintained for 20 years without repair;
3. The reliability of the hot-dip galvanized finned tube is good: the galvanizing layer and the steel are metallurgical combined and become a part of the steel surface, and the durability of the primary coating is more reliable;
4. The toughness of hot-dip galvanized fin tube coating is strong: the zinc coating forms a special metallurgical structure, which can withstand mechanical damage during transportation and use;
5. Comprehensive protection of hot-dip galvanized finned tube: every part of the plated part can be coated with zinc, even in the depression, sharp corner and hidden place can be protected by the full name;
6. Hot dip galvanized finned tube saves time and effort: the galvanizing process is faster than other coating construction methods, and can avoid the time required for painting on the construction site after installation.

High frequency welding finned tube radiator for string type and winding type fin made of the shortcomings, and improved by high frequency welding is an efficient heat radiating element of finned tube, fin tube itself is the strip thickness 0.8-1mm winding in the finned tube, and the high-frequency welding process, the welding in tablets pipe, ensure the bonding strength of tube and fin, the metal heat intensity reached 1.10 1.20w/kg degrees centigrade, widely used in boiler economizer of the finned tube air preheater and production workshop, production of residential energy-saving radiator, and heat pipe as the late winding preferred.

Spiral finned tube is an efficient heat transfer device. Its heat transfer area is several times to several times, it can strengthen heat transfer, reduce the flow resistance, reduce metal consumption, so as to improve the economic and operational reliability of heat exchange equipment. At present, the spiral finned tube has been widely used in various boilers.
Specification unit of spiral finned tube: mm
The diameter of the base tube is 25-159 D
Base wall thickness delta 2-8
Fin thickness 0.8-2 s
Fin height 10-30 H
Pitch 5-20 t
Fin tube length is less than or equal to 10000 L
Note: 1. the table outside the specifications can be made by the demand side agreed
          2. the fin to generally less than 1/2d
          3. the factory produced by the spiral finned tube DG1020-97 JB/T6512-92 and other standards

Material: ordinary carbon steel, stainless steel, corrosion resistant steel

In order to forward you a promt offer we would be pleased to receive you detailed enquiry including:
• Base tube material 
• Base tube size (OD x WT x Length)
• Fin material
• Fin type
• Fin diameter or height
• Fin thickness
• Fins per inch, meter or fin pitch
• Lenght of plain, unfinned ends
• Finned Tube Quantity
(Additional fabrication, such as bend or weld the tubes into tubeplate or assembly)