HFW sprial SERRATED fin tubes apply in HEAT RECOVERY STEAM GENERATOR
Base tube material: SA210 OD45mm X4.3mmTHK X8369mm LG
Fin Material: CS 19mmHx1.4mmTHKx2FPI
Customized finned tube is available. The specification table is
followed below. If required, the fin tube can be made into various
forms after soft annealing process. They can be used for cooling
and heating in a large scale of conditions. For example, coils in
water heater, oil cooler in large machines, heat transfer part in
boiler and heat recovering system, air-conditioning and
refrigeration industry as condenser part or evaporator part, etc.
Manufacturing Process:
The fin strip is welded continuously and spirally wound onto a
polished bare tube. And the tube and fins are bonded together by
using high frequency resistance welding technique.
Material: Stainless Steel+Stainless Steel, Carbon Steel+Carbon Steel,
Alloy+Alloy etc.
Bare tube OD: 16-219mm Fin Pitch: 3-25mm Fin Height: 5-30mm Fin Thick: 0.8-3mm
| Name | Base tube
(OD) mm | Fin Pitch
(mm) | length
(m) |
| Min | Max | Min | Max | Min | Max |
| Extruded aluminum fin tube | 12.7 | 51 | 2.1 | 10 | 0.5 | 20 |
| L/LL/KL aluminum fin tube | 19 | 51 | 2.1 | 3.2 | 0.5 | 15 |
| Embedded aluminum fin tube | 19 | 42 | 2.3 | 3.2 | 0.5 | 15 |
| Low fin tube | 12.7 | 32 | 0.8 | 2 | 0.5 | 20 |
| Spiral fin tube | 12.7 | 70 | | | 0.5 | 20 |
| ERW HF spiral fin tube | 16 | 219 | 3 | 25 | 0.5 | 28 |
| ERW HF spiral serrated fin tube | 16 | 219 | 3 | 25 | 0.5 | 28 |
| Serrated width(mm)
10 min~26 max | Serrated depth(mm)
4 min~16 max |
| ERW studded tube | 89 | 200 | 16 | 50 | 2 | 15 |
| | | | | | |
| DC ERW H/HH fin tube | 25 | 51 | 9 | 25 | 1 | 15 |
| H/HH fins | Length(mm)
60 min-150 max | Thickness(mm)
1.5 min~4 max | Width(mm)
30 min~50 max |
Application: The High Frequency Resistance Welded Helical Fin Tubes are widely
applied in fired heaters, heat exchanger, boilers, economizers,
pre-heaters, heat pipes, heaters etc…
Capacity: Seven ERW High Frequency fining lines, daily capacity around 50
tons,length≤28meters;
Products&Inspection Deatails:
Description of the inspections carried out
Following documentations should be reviewed & endorsed:
1. Declaration of conformity,
2. Inspection plan,
3. Welding book(WPS & PQR),
4. Finned tubes examination reports
(dimension & visual inspection, hardness test report, tensile test
report),
5.Test samples sheet,
6.Incoming inspection report,
7.Inspection certificate for bare tube,
8.Quality test certificate for steel strip,
9.Iinspection & Guarantee certificate for finned tube,
10.Product inspection report.
Packaging: sea worthy with plastic cap for each edge of core tube , finned
tubes shall be put on the metal frame with wooden walls and plastic
layer be considered between tubes rows to avoid damage and
deformation of the fins
FAQ
About our company
A------We have three company,
1. Aare Cun Tai Thermal Co., Ltd (Hong Kong, China)
2.Jiang Yin Cun Tai Thermal Equipment Co., Ltd (Jiangsu,
China)(Mill)
3.Jiang Yin Aare International Trading Co.,Ltd. (for export
procedure)
Besides the companies above mentioned, we don’t have any other
name.
About Our main business
A------DR(Extruded) / L(Wrapped) / LL(Overlapped) / KL-KLM
(Knurled) / G(Embeded) Fin Tube;
High Frequency Welding Fin Tube,Studded Tube, H/HH/Square Fin
Tube,Longitudinal Tube;
Elbows, Low Fin Tube,Spiral Tube, U bend , Corrugated Tube.
About Price terms
A------It could be EXW, FOB,CIF,CNF
About Payment Term
A------We usually accept payment by T/T in advance or by L/C
available against draft at sight
About Lead Time
A------Usually it takes about 35-45 days after we received your
confirmation.
However, it would depend on our production line schedule(the timing
clients place order)and the complication of the item.
About Quality Control
A----
Incoming inspection report for raw material including bare
tube/alu.tube / alu. strip / steel strip
Mill test cetification for bare tube
Mill test cetification for fin (alu.tube / alu. strip / steel
strip)
Mill test cetification for finned tube
Finned tubes dimension & visual inspection reports
About Sample
A---If you are interested in our above products, please contact us.
We can provide small samples in store for you, and you are welcome
to visit our factory
Our moulds can be customized,you could kindly leave an inquiry to
know more details about price, packing and shipping.
