Premium Large Diameter High Frequency Helical Welded Finned Tube

Product Description

 

The fins are manufactured by Spirally Winding the fin around the Base Tube and Pipe. During the winding the fin is Continuously Welded by High Frequency welding giving the Most robust bond between the the Fin and the Tube.

 

This type of Fin Tube is used specifically where the application involves a lot of Mechanical Stresses like continuous vibrations etc.

 

The welding bond between the Tube and The Fin also ensures that almost perfect heat Transfer Efficiency is achieved. Also it can give the highest operating temperature ranges.

 

These Fin Tubes find application in RADIATORS, AIR PREHEATERS, WASTE HEAT RECOVERY SYSTEMS, & BOILER FIN TUBES etc and are preferred in Industries like Power Plants, Chemical Industries, Steel Plants, and Chiller Plants etc.

 

 

Mechanical Resistance: Excellent (Hence can be frequently cleaned with high pressure jets unlike other fin tubes. Thereby reducing down time and increasing overall life)

 

Corrosion Protection: Moderate

 

Temperature Range: Up to Maximum 500 Deg C

 

Manufacturing Range (Welded Fin Tube/Solid Fin Tube):

Sr. No	Particulars	Range
1	Base Tube Material	Stainless Steel, Carbon Steel, Alloy Steel, Titanium, Copper, Duplex Stainless Steel, and Inconel etc. (all material in the theoretical limit)
2	Base Tube Outside Diameter	16.00 mm to 225.00 mm (½" NB Pipe to 8" NB Pipe)
3	Base Tube Thickness	2.50 mm And Above
4	Base Tube Length	500 mm Min To 30m
5	Fin Material	Carbon Steel, Alloy Steel  & Stainless Steel
6	Fin Thickness	0.80 mm To 2.50 mm
7	Fin Density	79 FPM (2 FPI) to 276 FPM (7 FPI)
8	Fin Height	9.8 mm to 25.00 mm
9	Bare Ends	As per Client Requirement
10	Manufacturing Capacity	3,00,000 Meter Per Annum

piral Finned Tube for Heat Exchangers Application
Aftercoolers, air coolers, air heaters, charge air chillers, condensers, convection heaters, electric heaters, evaporators, fluid coolers, gas coolers, heat pipes, hydrogen coolers, industrial tumble dryers, intercoolers, immersion heaters, oil coolers, radiators, refrigeration, solvent recovery and steam to air heat exchangers.

The steel fin, that may be solid or serrated, is helically wound and continuously welded to the tube by high frequency electric resistance welding. This produces an homogeneous, clean and continuous fin-totube bond with no additional weld material, for a very efficient heat flow and resistance to corrosion.

 

Tube bending:

Our finning machines are equipped with online single or duplex cold bending equipment that can manipulate both ends of tubes in a single operation, thus ensuring exact alignment of the ends. Our bending machines are capable of bending both bare or finned tubes with diameters from 31 mm to 76 mm.

 

Corrosion protection:

If required, the external surfaces of finned tubes can be treated with a protective coating. Our engineers are always ready to assist you with design considerations to meet your specific product needs.

Production Line

We have a professional sales and technical team.
We design solutions and provide product cunstomization for you. 

Now we have production facilities for manufacturing various types of finned tubes as mentioned below,
High Frequency Welded Fin Tube(Including Serrated Finned Tube) (8 lines)
Laser Welding Finned Tube (1 line)
Extruded Finned Tube (Bimetallic Fin Tube&Integral Monometallic Low Fin Tube)(6 lines)
'G'Type Fin Tube (Embedded Finned Tube),'L' 'LL' 'KL' Type Fin Tube (Wrap Around Finned Tube) (6 lines)
 

Other Products

 

PRODUCT	TYPE	TUBE MATERIAL	FIN MATERIAL	TUBE SIZE	FIN SIZE
Heat Exchanger Finned Tube	Extruded Fin Tube	All Kind of Material can be applied	Aluminum A1100	15.88~50.8	7~11.5FPI
					Fin Height Max 16mmH
	L-Foot Fin Tube	All Kind of Material can be applied	Copper C1100, C1220	12.70~50.8	7~11.5FPI
	(Wrap On Type)				Fin Height Max 16mmH
	G-Fin Tube (Embedded Type)		Aluminum A1100, A1050, A1060
	High Frequency Welded Finned Tube	A179 Carbon Steel Tube	Carbon Steel Tube	12.70~160	1.5~7FPI
		Stainless Steel Tube	Stainless Steel Tube		0.8~3.2mm. Thickness
		Alloy Steel Material	Alloy Steel Material
	Integral Copper & Copper Alloy High Finned Tube	C12200, C11000, C70600	C12200, C11000, C70600	15.88~22.23	5~9FPI
					Max 12mm. H
	Oval Finned Tube	Carbon Steel Tube	Carbon Steel Tube	All Size Available	5~15FPI
		Stainless Steel Tube	Stainless Steel Tube
		Alloy Steel Material	Alloy Steel Material
		Copper & Copper Alloy Tube	Copper & Copper Alloy Tube
Monometallic Fin Tube	Low Fin Tube	Carbon Steel, stainless steel, titanium, copper, brass, nickel alloy, etc.	-	9.52~40	12, 16, 19 28 FPI, etc.
	Turbo-C Tube
	Turbo-E Tube
	Corrugated Tube	All Kind of Material	-	6.35~40	2~9FPI

We offers different finned tubes: tension wound finned tubes, embedded finned tubes and extruded finned tubes.

 

Tension wound finned tubes are formed by winding a strip made of aluminium or copper around the tube under tension. The strip winding technology provides different types of fins: L-Fin, LL-Fin, KL-Fin.
 

 

(G-Fins) are made by winding aluminium or copper strip into a helical groove machined on the outer surface of the tube.

Tension wound finned tubes, embedded finned tubes and extruded finned tubes are main devices for air coolers and the common application fields are:

 

Heat exchangers for power plants (electric, nuclear, thermal and geothermal power plants)

Steam condensate systems

Chemical and petrochemicalindustry

Food processing plants and refrigeration technology

Industrial (steel mills, incinerators, gas compression facilities)

 

EXTRUDED FINNED TUBE----This fin type is formed from a bi-metallic tube consisting of an aluminium outer tube and an inner tube of almost any material.

The Extruded Fin Tube also known as Bimetallic Fin Tube is one of the most preferred finning processes for various applications.

 

The fins are manufactured by Extruding the Fins on the Aluminum Muff Tube which is made to Fit with close tolerance over the Base Tube.

 

The Extrusion takes place on a Continuous Fin Extruder with Three Tooling rolls and extrusion takes place at high pressures in the range of 1200 psi. Because of the cold working process the Bond between the Tube and fin is flawless and hence gives excellent Heat Transfer Efficiency. At the same time the mechanical strength of the fins is also enhanced drastically.

 

These Fin Tubes find application in AIR FIN COOLERS, DRIERS, RADIATORS etc and are preferred in Industries like Food and Agriculture, Power Plants, Chemical Industries, Steel Plants, and Chiller Plants etc.

 

 

Manufacturing Process: Cold Extrusion

 

Fin To Tube Bond: Excellent
Heat Transfer Efficiency: Excellent

Mechanical Resistance: Excellent (Hence can be frequently cleaned with high pressure jets unlike other fin tubes. Thereby reducing down time and increasing overall life)

Corrosion Protection: Gives excellent corrosion protection to the base tube since it entirely covers the base tube (except bare ends).

Temperature Range: Upto Maximum 300 Deg C

 

Application

Aftercoolers, air coolers, air heaters, charge air chillers, condensers, convection heaters, electric heaters, evaporators, fluid coolers, gas coolers, heat pipes, hydrogen coolers, industrial tumble dryers, intercoolers, immersion heaters, oil coolers, radiators, refrigeration, solvent recovery and steam to air heat exchangers.

Laser Welded finned tube:





Elliptical Finned Tube:

Company Profile

DATANG STEEL PIPE Co., Ltd is a reputed manufacturer and wholesaler that export to global markets for 17 years.
We have a professional sales and technical team,and we design solutions and provide product cunstomization for you.


We also customize Fin tube heat exchanger,Air cooler,Radiator,Economizer,Condenser, Vaporizer/evaporator.
We have a large amount of spot inventory: high quality carbon steel seamless pipe, ERW pipe, SSAW pipe, alloy steel pipe, etc. for fin tube's manufacture.
The pipe fittings and flanges are also available.
Welcome to visit our factory and looking forward to cooperate with you.

Production Workshop

 

Customer Tour&Cooperation

Customer Inspection

Testing&Certifications

FAQ
Q1:Are you a factory or trade company?

A1: A Factory and A subsidiary international trade company for export.

Q2: What can you provide?
A2: Our company is a professional manufacturer for Radiator and Heat Exchanger Equipment and various Fin Tubes.

Q3:Where is your factory?
A3:Our company is located in Cangzhou city, Hebei province, China, which is well equipped with kinds of machines.

Q4: How do you control quality?
A4: Inspection & Guarantee Certificate is supplied with shipment, and the Third Party Inspection is available.

Q5: What are the advantages of your company?
A5: We have many professional and technical personnel, more competitive prices and better after-dales service than other companies.

Q6: Can you arrange the shipment?
A6: Sure, we can help you with the shipment. We have forwarders who have cooperated with us for many years.

Q7: How about the delivery time?
A7: It is based on the order, normally within 30 days after receiving your advance payment.

Q8: Can you provide sample?
A8: Small samples in store can be provided for free.