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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 temperature400°C
Base tube materialCarbon steel – stainless steel – duplex – nickel alloys – copper/copper alloys
Finning materialAluminium – copper
Range of finningTube length: 200 – 22000 mm
Base tube diameter15,88 – 50,8 mm
Finning heights6,35 – 25,4 mm (depending on the tube OD)
Fin pitch5 – 12 fpi
Capacity6500 meter per day