fin tube

G Fin Tube (or Embedded Fin) Finis embedded into the outer wall of the tube, but gives no surface protection. Ingeneral use for continuous process applications; ie refineries, petrochemical,fertilizer and gas plants. Embedded Fin Tubes（G-fin),is considered to have a mechanical bond to the tube and has negligible deterioration of the fin bond with heat cycling. The fin is usually specified for high temperature applications with the fin material being the limiting factor.

KL Fin (or Knurled L fin): with metal strip wounded on the core tube with knurled suface The fin is wrapped around the tube and the foot is rolled into the outer surfaceof the pre knurled tube and secured at each end. Gives good surface protectionto the tube and improved heat transfer compared to the L or LL type fin. Usedfor moderate temperature cool applications.

L Fin (or wrapped fin): The fin is wrapped around the tube and secured at each end. Gives some surface protection to thetube. Used for moderate temperature cooling applications.

Finned tube manufacturers Extruded Fins / Extruded serrated Fins Finned tube is composited with iron-aluminum or copper-aluminum tube rolling out the fin, which feathers are tightness, small heat resistance, good heat transfer performance, high strength, small flow losses, strong corrosion resistant performance, not easy to deformation and a long working lifetime in cold and hot condition,etc.

L Fin (or wrapped fin): with metal strip wounded on the core tube The fin is wrapped around the tube and secured at each end. Gives some surface protection to thetube. Used for moderate temperature cooling applications. L-type finned tube mainly used in petrochemical, electric power, paper making, tobacco, building heating and other industry such as air cooler, air heater and air heater of food industry, plant starch spray drying system.

G Fin Tube (or Embedded Fin) Finis embedded into the outer wall of the tube, but gives no surface protection. Ingeneral use for continuous process applications; ie refineries, petrochemical,fertilizer and gas plants.

G Fin Tube (or Embedded Fin): with metal strip embedded in the core tube groove. Finis embedded into the outer wall of the tube, but gives no surface protection. Ingeneral use for continuous process applications; ie refineries, petrochemical,fertilizer and gas plants.

L Fin (or wrapped fin): with metal strip wounded on the core tube The fin is wrapped around the tube and secured at each end. Gives some surface protection to the tube. Used for moderate temperature cooling applications. L-type finned tube mainly used in petrochemical, electric power, paper making, tobacco, building heating and other industry such as air cooler, air heater and air heater of food industry, plant starch spray drying system.

Finned tube is composited with iron-aluminum or copper-aluminum tube rolling out the fin; The fin gives complete protection to the base tube and is much stronger than other applied type due to work hardening of the fin material during the extrusion process. Uppertemperature limit: 350° Material: Aluminum, Copper, Carbon Steel, Alloy.etc. ASTM A106/A53,ASTM/ASME SA210,ASTM A213,ASTM A179/A192 Bare tube OD: 8-38mm Fin Pitch: 2.0-10mm Fin Height: <17mm Fin Thick: 0.4mm (fin top) Capacity: Thirteen extrusion fining lines, daily capacity around 10000 meters