Finned Tubes
Aluminium Extruded Fin Tubes
Krystal Finning Division is solely focused on producing the largest variety and most complete solutions for finned tubing. These tubes are made in two typical styles.
- Applied finned tube which helically winds metal fins onto a tube or pipe.
- Extruded finned tubes are made by forming fins into a base tube, creating integral fins on the outside and/or inside diameter.
Aluminium Extruded Fin Tubes are most efficient Heat Exchanger tubes used to transfer the process heat and to gain maximum efficiency.
Extruded Finned tubes maximises Heat Surface Area & Heat Transfer Area with tubes. The amount of heat transferred from a particular surface is directly correlated to the surface area available for the heat to transfer. Therefore, increasing the HTA as a whole maximises overall Heat Transfer Efficiency of any Heat Exchanger. These Tubes have heat transfer capabilities.
These fins are formed by muff around the tube. This process creates strong joint which enhances the heat transfer. These tubes are used in application of high operating temperatures and the tube is protected fully against atmospheric corrosion.
Extruded Dins features 40% more aluminium than comparable fins which makes it sturdier and more resistant to mechanical stress.
These fins can be of various types , made of various materials and designed in various ways depending on the end requirement. Inner tube of various materials, and two metal tubes are rolled and machined to improve thermal conductivity and its sustainability. Excellent corrosion protection of the tube and Maximum Heat
Extruded finned tubes are bimetallic finned tubes whose outer aluminium surface is finned by cold deformation.
These tubes have a higher heat transfer area
Most preferred for various applications:
- Drying, Heating, Heat Recovery
- Oil & Gas refineries
- Thermal Power Plant
- Air Cooled Heat Exchangers
- Boilers/ Driers
- Steam condensate system
- Chemical & petrochemical industry
- Food Processing Plants
- Textile Industry
- Plywood Industry
Grades & Standards
- Base Tube Material: Stainless Steel, Duplex & Nickel Alloys
- Base Tube Diameter: 12.00 mm to 38.00 mm
- Fin Type: Extruded, Embedded (G Type), wrap-on (L, LL, KL), Integral low finned tubes
- Fin Material: Aluminium
- Fin Thickness: 0.35 mm to 0.45 mm
- Fin Height: 8 mm to 15.8 mm
- Fin Pitch: 6 FPI to 12 FPI
- Length: As per Customer Requirements, a Maximum of up to 14 Meters
- Testing: Fin Tubes will be supplied duly Hydro Tested after finning and all the testing as per specifications
- End Cut: Plain portion at both end
| PROPERTIES | |
|---|---|
| Mfg. process | Cold Extrusion |
| Fin to Tube bonding | Solid Bi Metallic |
| Heat Transfer Efficiency | Maximum |
| Corrosion Protection | High Because it's entirely covers base tube |
| Working Temprature | 250 - 280 C |
