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G Fin Tube,Embedded Spiral Fin Tube

  • G Fin Tube,Embedded Spiral Fin Tube
  • Aluminium-extruded-fin-tube
  • G Fin Tube,Embedded Spiral Fin Tube
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Product Description

Finned Tube----Embedded Fin Tube

Base Tube O.D
(mm)

Base Tube Thickness (mm)

Fin Height (mm)

Fin Thickness(mm)

Fin Pitch(mm)

15.88 mm ~50.8 mm

1.0 mm ~3.0 mm

6.35 mm ~ 25.4 mm

0.3 mm ~0.5  mm

2.1 mm ~ 6.0 mm

Base Tube Material

Fin Material

Tube Length (Mtr)

Carbon Steel ,Alloy Steel ,Stainless Steel

Aluminum

≤ 15Mtrs

 

Embedded Fin tubes or names as G type Finned tube

 

The Embedded Fin tubes main design involves the fin inserted and welded into a helical groove cut into the tubes. They can be used in higher temperatures, and are very durable. Embedded fins are best suited for the usages that involve high thermal cycling or high temperatures and where the finside will be subjected to regular cleaning.  

Common Applications: Air Cooled Heat Exchangers, Steam Coils, Air Preheaters. 

Max. Working Temperature:  400 °C

Atmospheric Corrorsion Resisitance: OK

Mechanical Resistance: Poor

Fin Material: Copper, Aluminum

Base Tube materials: Any material available, such as Carbon steel Tube, A179, A192, A210, stainless tube A269/A213 T5 T11 T22 304 316

 

Key Words: Finned Tube, Fin Tubes, Embedded Fin tubes,  G type Finned tube, L Fin tube, "LL" type fin tubes, KL fin tubes, knurled finned tubes, Tubos Aletados 

Specifications︰G Fin Tube (or Embedded Fin Tube)
G type embedded spiral finned tube is processed from a certain width in the steel pipe and spiral groove depth, then inlays the ribbon on the steel pipe by the equipment. In winding process, as the pre-tightening force to a certain extent so the strip will be firmly in the spiral groove, to ensure there is a certain contact area between steel band and steel pipe. In order to prevent the strip spring falling off the light tube, the two ends of the steel strip need to weld onto the steel pipe. In order to set easily, there should be a certain clearance between steel belt and spiral groove. If the clearance is too small the setting process will be difficult to proceed smoothly. In addition, the steel belt of winding there will always be a certain amount of rebound, which makes it cannot very good joint among the steel belt and spiral groove bottom. Inlaid fins can be conducted on general equipment, and they cost little. With the advanced production equipment, slotting embedding technology is advanced, from stable, embedded and firm, pulled off force not less than 70 n, the allowable temperature can reach 400 ℃, has the strong ability of temperature resistance and thermal shock, widely used in petrochemical air cooler.

Bare tube general material: Copper, Alloy, Carbon Steel, Stainless Steel
Bare tube OD: 16-63mm
Fin general material: Aluminum
Fin pitch: 2.1-5.0mm
Fin height: <17mm
Fin thickness: ~0.4mm]
Upper temperature limit: 450°C

Product Image


Aluminium-extruded-fin-tube
Aluminium-extruded-fin-tube


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