This news page covers finned tube. The content highlights inspection and testing requirements, end-use applications. Buyers can use the page to check whether the product, grade, size range, inspection requirements and delivery details match their inquiry.
Embedded Finned Tube | G Type Fin Tubes
The G Type FIN TUBE is also known as Embedded Fin Tube. This type of fin tube widely finds acceptance where the requirement is for higher operating temperature and relatively lower corrosive atmosphere.
The fins are manufactured by embedding the fin strip into a groove formed on the base tube. The Fin is allowed to be placed in the groove and then the backfilling of the groove is carried out to ensure firm adherence of the fins to the base tubes. Because of the process this type of Fin Tube is also known as ‘G’ Type Fin tube or Grooved Fin Tube.
The grooving, fin stack inserting and the backfilling processes are carried put simultaneously as continuous operation. Because of the back filling procedure the bond between the Fin material and the Base tube is one of the best. This ensures optimum Heat Transfer.
These Fin Tubes find application in AIR FIN COOLERS, RADIATORS etc. and are preferred in Industries like Power Plants, Chemical Industries, Petroleum Refineries, Chemical process Plants, Rubber Plants, etc.
General Questions About G Type Fin Tubes or Embedded Fin Tubes
1) What are Fin Tubes or Finned Tubes?
Fin Tubes, also known as Finned Tubes, are a type of heat exchanger tube. Finned Tubes are used mainly in an air-cooled type heat exchanger where the exchange of heat takes place between gas flowing on the fins and the fluid flowing inside the fin tubes. The main purpose of fin tubes is to increase the surface area of a tube to facilitate more exchange of heat between the medium and the air.
2) What is ‘G’ Fin Tube or Embedded Fin Tube?
As the name suggests, the embedded fin tube or G fin tube is an extended surface fin tube where the fins are externally applied on the base tubes. A groove is formed continuously on the base tube and the fin edge is inserted in the groove. After the fin is inserted in the groove a set of rollers is used to back fill the groove and the fin is then securely embedded in the base tube.
The strength of the Embedding or more commonly known as Fin to Tube bond test is checked by hanging a 3 Kg free wight to an Isolated fin. This ensures whether the fin has been Embedded into the base tube properly.
3) What is an extruded fin tube made of?
‘G’ Type Fin Tubes or Embedded Fin Tubes are made of two main components, Base Tube and Fin Strip material.
We can supply the ‘G’ Fin Tubes in the following combinations of Base Tube and Fin Material:
Base Tube Material: Carbon Steel, Alloy Steel, Mild Steel, Stainless steel and tubes manufactured by ERW or Seamless Process
Fin Material: Aluminum, Copper
4) Where are Extruded Fin Tubes or Bi-Metallic Fin Tubes used?
‘G’ Fin Tubes or Embedded Fin Tubes are mainly used in air fin coolers and many different types of air-cooled radiators. These types of ‘G’ Fin Tubes mainly find application in areas where the temperature for heat transfer is in a slightly higher range. The Embedded Fin Tubes are mainly used in places with higher temperature and where the working atmosphere is relatively less corrosive to the base tube.
Main industries in which the ‘G’ Fin Tubes find service are Process Chemical Plants, Refineries, Gas Processing Plants, Steel Plants, Power Plants, Fertilizer Manufacturing Plants, etc.
