Embedded Finned Tubes: G-FIN Technology
The grooved fin is mechanically bonded into the tube wall, guaranteeing optimal heat transfer and bonding capabilities up to 400°C.
Production:
During production, a groove is precisely machined into the tube wall with a depth of 0.25 (+/- 0.05) mm. Subsequently, the aluminium strip is carefully rolled into the groove, and the groove is sealed using so called backfillers. This process effectively locks the strip in the tube wall, ensuring complete contact with the base tube, even at elevated temperatures. The result is a robust and efficient heat transfer mechanism provided by the G-FIN technology.

Specifications
| Max. tube wall temperature | 400°C |
|---|---|
| Base tube material | Carbon steel – stainless steel – duplex – nickel alloys – copper/copper alloys |
| Finning material | Aluminium – copper |
| Range of finning | Tube length: 200 – 22000 mm |
| Base tube diameter | 15,88 – 50,8 mm |
| Finning heights | 6,35 – 25,4 mm (depending on the tube OD) |
| Fin pitch | 5 – 12 fpi |
| Capacity | 6500 meter per day |


