Seamless Tube Embedded Finned Pipe Aluminum L Type Steel Spiral Wound Round

Aluminum L Type Steel Spiral Wound Round Seamless Tube Finned Pipe

Manufacturing process

The aluminum fin strip is tension wound and placed into a groove cut into the tube with appr. 0.4mm fluted depth.

Surface Protection of Plain Ends

Both ends of Grooved G type Fin Tubes shall be Zinc or Aluminum metalized applied by an electro spray arc system coating.

Acceptance criteria

API Standard 661(Air-Cooled Heat Exchangers for General Refinery Service) or the delivery conditions (TDC).

Accessories

Tube support box, clamp or spacer box (Materials: Aluminum, Zinc and Stainless Steel).

Delivery condition:

Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of G-Fin Embedded Finned Tube.

The desiccants are put into each package for continental transporation as well.

Applications:

The common application fields are:

1. Heat exchangers units for power plant(electric, nuclear, thermal and geothermal power plants);
2. High corrosive systems (condensers, evaporators, sea water desalinations, fertilizing, urea systems, ammonia, gas, corrosive acids);
3. The petroleum, chemical and petrochemical industries;
4. The food processing and refrigeration industries;
5. Natural gas treatment;

Specifications:

Grooved G type Finned Tubes are combined with two different materials.

ASTM A192 / A192M : Seamless Carbon Steel Boiler Tubes for High-Pressure Service

ASTM A210 / A210M : Seamless Medium-Carbon Steel Boiler and Superheater Tubes

Steel Grade: Grade A1; Grade C

Delivery Condition: Annealed, Normalized, Normalized and Tempered