Cangyang Thermal Energy offers various kind of aluminum finned tubes: Embedded G Fin Strip Tube, tension wound finned tubes, Edge grooved G Fin tubes (Tubos aletados) and extruded finned tubes.
Embedded fins (G-Fins) are produced by winding aluminium or copper strip into a helical groove machined on the outer surface of the tube. Depending on base tube material and fin material, the G Fin groove depth is different. When the base tube is carbon steel tube or copper, such as SA179 seamless tube, SA192 Tube and C12200 Copper tube, the G Fin grooved depth is about 0.4mm; when the base tube is stainless steel tube, duplex stainless steel and alloy steel, the G Fin grooved depth is about 0.2mm. Comparing with carbon steel base tube with grooved finning services, the alloy steel tube with G Fins production is much slower.
Below dimension chart is for your reference to choose the right fin datas.
Fin Types | Tube Diameter(mm) | Thickness (mm) | Finned Diameter (mm) | Fin Pitch | Length (mm) |
Edge Grooved G Fin | 15.88~50.8 | 1.65-3.76 | 38.1-76.2 | 6FPI-132FPI | 300-20000 |
For the long length of Embedded G Fin Tubes, tube spacer may be needed to fix on the fins at different place of a tube. The fin tube spacer can be in aluminium material and galvanized steel strip material. Take following project of G Fin Tube as example.
Quantity of the tubes: 1,116 pieces (4 set’s – 279 pieces)
Tube Material: SA-213 TP304L
Tube wall Thickness: BWG 14 (M.W), 2.108 mm
Tube Diameter: OD. 1" (25.40 mm)
Length of the tubes: 10,972 mm
Length finned of the tubes: 10,852 mm
Unfinned end of the each side of the tube: 60/ 60 mm
Types of the fins: EMBEDDED "G FIN"
Fin-material: Aluminium 1060
Fin Heigth: 16.80 mm
Fin Diameter: 57.15 mm
Fin thickness: 0.40 mm
Number of fins/inch: 11 fins for inch
Application fields
●Petroleum, chemical and petrochemical industries
●Natural gas processing
●Steel industry: blast furnace and converter systems
Power generation: Condensation of exhaust gas from steam turbines, condensed water in contact with circulating cooling condensation, fossil and nuclear power plants
●Air Conditioning (Freon, Ammonia, Propane)
●Waste incineration equipment
●Compressor cooler, etc.
Maybe the most important thing customers concerned is about quality control.
How do we control the quality of aluminum finned tube? Here we made an explanation as below.
We have strict quality control on materials before finning and after finning.
When order placed, we will make drawing with tolerances on each datas and then confirm with customers.
When materials arrived, our QC will check the materials surface and dimensions before do finning services to make sure all datas are qualified.
During finning services, our QC will check fin dimensions every one hour and take records.
Before doing package, we will make sure all fin tubes are with clean surface with no damaged fins.
During package, we will take pictures to show customers how the fin tubes are packed in wooden case and tell them the final datas of package weight and size to make ship booking.
Before fin tubes shipped, we will send customers the QC documents such as material MTC and inspection record to tracking.
