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Steel Longitudinal HH Welded Finned Tubes For Waste Heat Recovery / Boiler

AARE CUN TAI THERMAL LTD.
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Address: No939, Qinfeng Road, Huashi Town,Jiangyin city, Jiangsu Province

Contact name:April Guan

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AARE CUN TAI THERMAL LTD.

Steel Longitudinal HH Welded Finned Tubes For Waste Heat Recovery / Boiler

Country/Region china
City & Province jiangsu
Categories HVAC Systems & Parts
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Product Details

HH fin tube apply in waste heat recovery , boiler



Application: waste heat recovery, petrochemical industry, power plant boiler, economizer, coaches, civil building heating, refrigerating, drying, medicine of wood drying, food drying system and other industries

Capacity: Six DC ERW H/HH fining lines, daily capacity around 20 tons;
 

Base tube material: SA192 SMLS 31.8mmOD*3.2mmTHK*3900mmLG
Fin Material: CS; FPM53fins X 3mm THK x 75 mm W x 152mm H
 
Manufacturing Process:
It adopts high frequency welding spiral technology, the national patent technology with high frequency power supplies as the heat source to heat the steel strip, steel pipe at the same time,be welded together
 
 
Material:
Steel, Carbon Steel, etc.
Bare tube OD: 25-63mm Fin Pitch: 8-30mm Fin Height: <200mm Fin Thick: 1.5-3.5mm

Name

Base tube
(OD) mm

Fin Pitch
(mm)

length
(m)

 MinMaxMinMaxMinMax
Extruded aluminum fin tube12.7512.1100.520
L/LL/KL aluminum fin tube19512.13.20.515
Embedded aluminum fin tube19422.33.20.515
Low fin tube12.7320.820.520
Spiral fin tube12.770  0.520
ERW HF spiral fin tube162193250.528
ERW HF spiral serrated fin tube162193250.528
 

Serrated width(mm)
10 min~26 max

Serrated depth(mm)
4 min~16 max

ERW studded tube892001650215
       
DC ERW H/HH fin tube2551925115
H/HH fins

Length(mm)
60 min-150 max

Thickness(mm)
1.5 min~4 max

Width(mm)
30 min~50 max

 
Description:

General 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.

We produce both solid plain and serrated helical welded steel finned tube. And also, all spiral welding tubes could be bent in the middle or at the end of fin tubes, we call it Hairpin tubes.
 
Products&Inspection Deatails:
 

 
 
 
 
 
 
 
 
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
 
 
 
 
Mass production of DC ERW HH fin tube
 
 
 
 
 

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 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 visit our factory
 
Our moulds can be customized,you could kindly leave an inquiry to know more details about price, packing and shipping.


 
 

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