G Finned Tube Product Description:
The G Fin Tube is also known as Embedded Fin Tube. This type of fin tube widely finds acceptance where the requirement is for higher operating temperature and relatively lower corrosive atmosphere
The fins are manufactured by embedding the fin strip into a groove formed on the base tube. The Fin is allowed to be placed in the groove and then the back filling of the groove is carried out to ensure firm adherence of the fins to the base tubes. Because of the process this type of Fin Tube is also known as ‘G’ Fin tube or Grooved Fin Tube.
The grooving, fin stack inserting and the back filling processes are carried put simultaneously as continuous operation. Because of the back filling procedure the bond between the Fin material and the Base tube is one of the best. This ensures optimum Heat Transfer.
G Finned Tube Manufacturing Process:
A helical groove is formed in base tube displacing of material and fin is wound into the groove under tension, followed by backfilling of the displaced material to lock the fin root into the tube.
Fin materials: Aluminium Base
Tube materials:Any readily machinable material
G type finned tube Properties:
Core Tube: Carbon steels (ASTM A 179/ A 214, St 35.8,etc.), low-alloy steels, stainless steels, copper-nickel alloys, aluminum bronze, copper, nickel-alloys(Alloy 400, ext.),
Fins:Aluminum ASTM B209 Al 1060;ASTM B209 Al 1100, A1050, etc.
Maximum operating temperature for this fin type is 450°C.
G type embedded fin tubes machine is designed based on international advanced technologies and experience with stable and firm slotting embedding technology, pulled off force not less than 70 N, medium allowable temperature of 450 ℃, with strong resistant and heat-resistant ability, widely used in the impact of petrochemical refining air condenser.
G Finned Tube Applications：
Mainly used in petrochemical, electric power, paper, tobacco, building heating and other industries such as air cooler, air heater and food industry plant protein powder, starch and other spray drying system of air heaters. The maximum working temperature is 400℃.
It use of advanced production equipment , slotting embedding technology is advanced, from stable, embedded and firm, pulled off force not less than 70 n, tle allowable temperature can reach 400 ℃, has the strong ability of temperature resistance and thermal shock, widely used in petrochemical air cooler.Small oil gun (plasma) micro oil ignition warm wind is cold boiler ignition hot air heating equipment in the ball mill coal pulverizing system.
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 |
