Welded Helical Spiral Finned Tubes For Economizer / Waste Heater Recovery Boiler

HFW sprial fined tubes apply in Economizer for waste heater recovery boiler

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

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:

Fin pitch

Labeling

Welding

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

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.

Sample

tensile test

JiangYin Cuntai Thermal Equipment Co., Ltd (also known as AARE Cuntai Thermal Limited)was established in Year 2008 with location at JiangYin City. We’ve been one certified finned tube manufacturer with ISO 9001：2008 Quality Management System which was authorized by UKAS(SGS) for Mechanical-forming surface-extended thermal-transfer tubes(DR-Extruded/L-wrapped/LL-overlapped/KL-Knurled/G-Embedded aluminum/Copper fin tube) , Welding-forming surface-extended thermal-transfer tubes(ERW HF spiral fin tube/ERW studded tube/DC ERW H/HH fin tube),Low Fin Tube, Spiral Tube ,Corrugated Tube & U Tube etc..

Our direct clients are mostly the manufacturers of air cooler, fired heater, heat exchanger, marine boiler, economizer, power plant boiler, HRSG boiler, waste heat recovery unit, air heater etc,and our end users are mainly from these industrial sectors: power plant, refinery & petrochemical, Offshore & marine.

Our workshop size 2500 m2, employees around 150, machinery investment more than 15000000USD. And we are board member of China thermal&water engineering manufacturers association.