Product Description

We are professional Spiral Square Longitudinal ERW Finned Tubes Fin Tubes Fin Pipes Finned Pipes Fin Tubings fintubes for Heat Exchangers Boilers Air Cooler Radiator Evaporator from china
Tube OD:On request 12~ 219mm.
Tube thickness:on request <16
FPI:On request 2.3~30
Fin thickness:0.8~4.0
Fin height:5.5~30mm

Finned tube is mainly used for boiler economizer, air preheater, heat recovery, petrochemicalindustry cracking furnace and etc.It can largely save energy and protect environment.Our company

can produce finned tube from Φ22mm to Φ250mm according to GB or customer’s require.

According to the wing shape and structure, finned tube can be divided into the following categories:

Square finned tube,spiral finned tube,Longitudinal Finned Tube,Brown Finned Tube,Helical Serrated Finned Tubes,inner finned tube.

Longitudinal finned tube

Longitudinal finned tube

1.Tube OD:On request from 12mm to 219mm.

  Tube thickness:on request(less than 16mm)

  FPI:On request(2.3mm to 30mm)

  Fin thickness:On request(0.8mm to 4.0mm)

  Fin height:from 5.5mm to 30mm

2.Base tube material: Aluminium, copper, brass, cupronickel, carbon steel, stainless steel, titanium,

nickel alloy, corrosion-resistamce steel etc.

3.Fin material: Aluminium,carbon steel,alloy steel ,stainless steel ,copper and

corrosion-resistance steel.if you need others material,contact us.

Longitudinal finned tube

Longitudinal finned tube

Applications:

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 welding process of the longitudinal finned tube radiator is reliable and the heating is excellent, which cannot be achieved by ordinary radiators.
Longitudinal finned tube heat exchangers are widely used in starch, dairy, food, feed, leather, textile printing and dyeing and other processing industries for drying.
Longitudinal finned tubes use high-frequency power supply as heat source, and the steel strip and steel tube are not too large at the same time, generally more than 1mm is suitable for pipe layout. In the process of heat exchange, when the air flows through the finned tube heat exchanger, the two sides of the fins are mainly involved in heat exchange. There is only a small amount in the middle of the two finned tubes, and the heat exchange effect is not obvious.
Longitudinal finned tube radiator is a type of finned tube radiator. It is a radiator equipment made by cutting and welding steel pipes, which successfully replaces the general traditional radiator. Longitudinal finned tube radiator is suitable for heating in chemical workshops, industrial plants, greenhouses and other fields, with excellent heating effect.
The heat dissipation efficiency of the longitudinal finned tube radiator will be affected by many factors, among which the spacing, resistance and pressure drop of the finned tube radiator are all factors that affect the heat dissipation coefficient of the finned tube radiator. The greater the spacing of the finned tube radiators, the more gradual the drag and pressure drop.
The longitudinal finned tube radiator has a large heat exchange area, which can heat the room with an area of ​​20,000 square meters, improve the indoor temperature and improve the indoor comfort.

Brown Finned Tube

Brown Finned Tube

Specification of finned tube

Base Tube O.D
(mm)
Base Tube Thickness (mm) Fin Height (mm) Fin Thickness(mm) Fin NO.(Pc)
25.4 mm ~152.4 mm 1.0 mm ~4.0 mm 5.0 mm ~16.0 mm 0.89 mm ~1.5 mm 2 ~ 36
Base Tube Material Fin Material Tube Length (Mtr)
Carbon Steel ,Alloy Steel ,Stainless Steel Carbon Steel ,Alloy Steel ,Stainless Steel ≤ 15Mtrs

INNED TUBES PRODUCTS & SERVCE AVAILABLE

   I. Mechanical-forming thermal-transfer tubes
DR type-Extruded high fin tube (solid and serrated fins)

L type-wrap-on spiral fin tube

LL type-Overlapped footed spiral fin tube

KL & KLM type-wrap-on knurled footed fin tube

G base type-Embedded fluted fin tube

LF- integral low fin tube (knurled option)

I type-Crimped spiral fin tubes
Corrugated tube, spiral tube,

  2. Welding-forming thermal-transfer tubes
HFW type -ERW High frequency resistance welding fin tube(Solid & Serrated Fins)

H/HH type ( DC welding square or rectangular fin tube) ,

Studs type(ERW studded tube)

Longitudinal welding fin tube (standard ,perforated,cut & twist)

Single Row Flat finned tube & Elliptical Finned Tubes

  3. Others service on request
Elbows, bends, U-tube, tube swaging

Tube spacer box (Material: SS, Alu. Galvanized/Zinc)

 

Fin material Aluminium or copper
Tube materials Carbon steel, Cr.-Mo. steel, stainless steel, copper, copper alloys, etc.
Tube Dia. 5/8″ [15.875mm] to 2″ [50.8mm]
Tube Thick >0.065″ [1.65mm] depending on tube material
Tube Length 300mm to 20000mm
Fin Height 1.4″ [6.35mm] to 1″ [25.4mm]
Fin Pitch 5 to 13 fins per inch
Fin Strip Thickness 0.012″ [0.30mm] to 0.020″ [0.50mm]

 

Fabrication Capacities

(1)  Fourteen extrusion fining lines, daily capacity around 4000 meters

(2) Four L/LL/KL fining lines, daily capacity around 3000 meters

(3) Two G-type fining lines, daily capacity around 1000 meters

(4) Two ERW studding lines, daily capacity around 80000 studs

(5) Four ERW High Frequency Spiral fining lines, daily capacity around 30 tons

(6) Three bending machines, maximum capacity 76X4

(7) Five DC ERW H/HH fining lines, daily capacity around 20 tons

(8) One PLC high speed punch presser

FAQ
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.