In 2018, Kelvion completed airside revamps on 42 forced draft Fin Fan units located in a UK Refinery.

The revamp included a Belt Tensioning Device - compared to their other Fin Fan units, the customer saw  energy savings of  roughly 5% due to the belts always having correct tension.

The customer's maintenance team would typically spend 4 hours per belt tension or pulley inspection mostly due to typical tension bolt set-up. With the Belt Tensioning Device in place they spend 15 to 20 minutes for the same work, with less risk of hand injuries as well.