G Finned Tube Product Description:
The fin strip is tension wound into a groove machined into the tube surface. Simultaneously the fin is fixed into the groove by back filling with material from base tube. Maximum heat transfer at high tube temperatures is ensured.
Max. working temperature: 400°C
Fin Materials: Aluminium, Copper and Carbon Steel
Base Tube Materials: No limits
G Finned Tube(Aluminum Finned Tube) Manufacturing Process:
The manufacturing tool is made up of 2 non-cutting plates set at 90° to the axis of the base tubes (pipes) (core tube).The first plate effects a groove for metal spinning. The second directs the ribbon in the groove and sets the fin foot in the groove through pressure on the metal displaced for the groove. A similar plate made of tungsten carburate allows us to manufacture. G embedded fin tubes ( fin tubes )with base tubes (pipes) (core tube) made of austenitic steel or exotic alloys.
G Finned Tube(Finned Aluminum Tubing) Advantages:
1)Thermal
The fin/tube wall contact is constant because of the setting and makes it possible to use a wall temperature of up to 400°C.
2)Mechanical
The fin is set throughout its length and consequently does not unwind even when partially uprooted.
G Finned Tube(Copper Finned Pipe) Properties:
Manufacturing Process: – Grooving and Embedding the Fin Stock in the Base Tubes.
Fin To Tube Bond:- Very Good
Heat Transfer Efficiency:- Excellent
Mechanical Resistance: – Very Good
Corrosion Protection: – Moderate
Temperature Range:- Up to Maximum 415°C
G Finned Tube(Finned Copper Pipe) Applications：
Heat exchangers units for power plant (electric, nuclear, thermal and geothermal power plants);
High corrosive systems(condensers, evaporators, sea water desalination, fertilizing, urea systems, ammonia, gas, corrosive acids);
The petroleum, chemical and petrochemical industries;
The food processing and refrigeration industries;
Natural gas treatment.
G Finned Tube Specifications：
| Product Specification | ||
| Tube OD | 19~51 (mm) | 3/8”~2” |
| Tube Wall Thk | 2.11~3.5(mm) | 0.083”~0.138” |
| Tube Length | ≤18,500 (mm) | ≤60.7 ft |
| Fin Thk | 0.3~0.5 (mm) | 0.012”~0.02” |
| Fin Height | 10~16 (mm) | 0.394”~0.63” |
| Fin Pitch | 100~433 FPM | 3~11 FPI |
| Fin Type | G | |
| Material Combinations | ||
| Fin Material | Aluminum (most common grade:Alu.1100, Alu.1060, Alu. 6063) | |
| Copper | ||
| Tube Material | C.S. (most common grade: A179, A192,SA210 GrA1/C,A106 Gr B ) | |
| S.S. (most common grade: TP304, 316) | ||
| Copper (most common grade:UNS12200,14200, 70600, CuNi70/30, CuNi 90/10) | ||
| Titanium (most common grade: B338Gr2) | ||
|
Applied Temperature |
400°C | |
| Type of Service | High temperature | |
Description
Product Name: Embedded Finned Tube, G Type Embedded/ Grooved Fin Tube,L Type Embedded/Wrap Around Fin Tube,LL Type Embedded/Wrap Around Fin Tube,KL Type Embedded/Wrap Around Fin Tube,
• Base Pipe OD: 15.88-101.6mm
• Base Pipe wall Thk: 1.5 to 3mm
• Fin Height: 6.35-25.4mm
• Fin Thickness: 0.3 -1.0mm
• Number of Fins: 2~9 FPI
• Fin Pitch: 2.5mm-5mm
• End: Plain Ends, Beveled Ends,BST
Base Tube Material
• Carbon Steel： SA179, SA334, SA214, SA106B, SA-192,SA210 GRA1/C,10#, 20#,
• Stainless Steel：SA789, SA213, SA312, TP304, TP316L,TP316Ti
• Cooper：ASTM B111/ASME SB111:C12200,C68700,C44300,C71500,CuNi90/10, 70/10,70/20,70/30
• Titanium：Grade:B338 Gr2 B338 Gr7
Fin Material
• Aluminum：AA 1000 Series,AA 3000 Series,AA 6000 Series
• Cooper：SB111 C12200
Applied Temperature:380℃-420℃
Inspections:
• Chemical composition
• Mechanical Properties
• Hydrostatic Test
• Boroscopic Inspection
• Eddy Current Test
• Tensile Test
If you have any Inquiry, please don't hesitate to contact us immediately,
Email:info@fintuberadiator.com
Specification
| Type | Description | Base tube | Base tube | Fin specification | |||||
| O.D. (mm) | O.D. (inch) | Fin pitch(mm) | Fin pitch(FPI) | Fin height(mm) | Fin height(inch) | Fin thick(mm) | Fin thick(inch) | ||
| Embedded | G Type Embedded/ Grooved Fin Tube | 14-51 | 0.5-2 | 2--6 | 3--14 FPI | 7--17 | 0.27--0.669 | 0.35--2 | 0.0137-0.0787 |
| L Type Embedded/Wrap Around Fin Tube | 10-51 | 0.4-2 | 2--6 | 3--14 FPI | 7--17 | 0.27--0.669 | 0.35--2 | 0.0137-0.0787 | |
| LL Type Embedded/Wrap Around Fin Tube | 10-51 | 0.4-2 | 2--6 | 3--14 FPI | 7--17 | 0.27--0.669 | 0.35--2 | 0.0137-0.0787 | |
| KL Type Embedded/Wrap Around Fin Tube | 10-51 | 0.4-2 | 2--6 | 3--14 FPI | 7--17 | 0.27--0.669 | 0.35--2 | 0.0137-0.0787 | |
| Extruded | Carbon base tube | 15.88--50.8 | 0.625--2 | 1.8-8 | 3--14 FPI | 5--16 | 0.2--0.63 | 0.3-1.2 | 0.012--0.047 |
| Stainless base tube | 15.88--50.8 | 0.625--2 | 1.8-8 | 3--14 FPI | 5--16 | 0.2--0.63 | 0.3-1.2 | 0.012--0.047 | |
| Copper base tube | 15.88--50.8 | 0.625--2 | 1.8-8 | 3--14 FPI | 5--16 | 0.2--0.63 | 0.3-1.2 | 0.012--0.047 | |
| Low Fin Tubes ( Integral Fin Tube ) | Carbon Steel, stainless steel, titanium, copper, brass, nickel alloy. | 6.35--38 | 0.25--1.5 | 2.8--12.7 | 2--9FPI | 0.38--1.27 | 0.015 --0.050 | ||
| High Frequency Welding Fin tube | Solid Helical Fin Tubes | 15.88--273.1 | 0.625--10 | 3--25 | 0.118--1 | 5--30 | 0.196--11.811 | 1--3 | 0.0393--0.1181 |
| Serrated Helical Fin Tube | 15.88--273.1 | 0.625--10 | 3--25 | 0.118--1 | 5--30 | 0.196--11.811 | 1--3 | 0.0393--0.1181 | |
| H/HH Type Rectangular Fin tube | 15.88--273.1 | 0.625--10 | 3--25 | 0.118--1 | <219 | <8 | 1--3 | 0.0393--0.1181 | |
| Studded Fin Tube | 15.88--273.1 | 0.625--10 | 3--25 | 0.118--1 | 5--30 | 0.196--11.811 | φ5-20 | ||
| Elliptical/Oval Fin tube | Hot dipped galvanized | 36*14 | 2.5--3 | 0.0984--0.118 | 55*26 | 0.25 | 0.0098 | ||
| Laser Fin tube | Copper,Brass,nickel | 10--45 | 0.393--1.771 | 2--10 | 0.0787-0.3937 | 5--23 | 0.196--0.905 | 0.3-1.2 | 0.011--0.047 |
