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G Type Fin Tube| Embedded Finned Tube

 G Type Fin Tube| Embedded Finned Tube

G Fin Tube discription:  The fin strip is wound into a mechanically produced groove and tightened by backfilling of the base material under pressure.

Groove depth appr. 0,4 mm. 

Advantages: High fin stability, excellent heat transfer, high operating temperature.


G Type Fin Tube Material Combinations

G Fin Tube Core Tube: Carbon steels, low-alloy steels, stainless steels, brass,copper, copper-nickel alloys, aluminium bronze, nickel-alloys (Alloy 400, etc.), bimetal, titanium and others

G Fin Tube Fins: Aluminium / Copper / Steel / Galvanized Steel

G Type Fin Tube Fields of Application:

• the petroleum, chemical and petrochemical industries

• natural gas treatment

• the steel industry: blast furnace and converter systems

• power generation: steam turbine exhaust condensing

– contact condensing with cooling of circulating condensate

– fossil and nuclear power plants

• air conditioning (freon, ammonia, propane)

• incineration of household refuse

• compressor coolers, ect.

G Type Fin Tube Manufacturing Process

The manufacturing tool is made up of 2 non-cutting plates set at 90° to the axis of the base tube. The first plate effects a groove for metal spinning. The second directs the ribbon in the groove and sets the fin foot in the groove through pressure on the metal displaced for the groove. A similar plate made of tungsten carbure allows us to manufacture G finned tubes with base tubes made of austenitic steel or exotic alloys.

G Type Fin Tube Advantages

1) G Fin Tube Thermal

The fin/tube wall contact is constant because of the setting and makes it possible to use a wall temperature of up to 400° C.

2) G Fin Tube Mechanical

The fin is set throughout its length and consequently does not unwind even when partially uprooted.



In order to forward you a promt offer we would be pleased to receive you detailed enquiry containing:

• Base tube material and quantity

• Base tube size

• Fin material

• Fin type

• Fin diameter or height

• Fin thickness

• Fins per inch, meter or fin pitch

• Lenght of plain, unfinned ends (nessesary to roll or weld the tubes into tubeplate or assembly)

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