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Fern Engineering - Experts in Turbomachinery










Rolls-Royce Avon with Improved Transition Duct

Fern offers an improved expansion joint that replaces the current OEM transition duct connecting the gas turbine to the power turbine of Rolls-Royce Avon-powered units. The new expansion joint was originally designed for a client who was experiencing severe hot gas leakage due to excessive distortion of the OEM transition pieces and the mating hardware. Fern decided to actively market the new design after discussions with other Rolls-Royce Avon owners revealed similar patterns of distortion, leakage, and power loss.

Current OEM Transition Duct Design

Fern Engineering Transition Duct                               Design

Every expansion joint installed to date has met all expectations. Current worldwide total: 27

"The installation of the first RR Avon exhaust transition duct replacement on a North Sea oil platform went like clockwork. No operational problem and the cell temperature has come down by 10°C, which is exactly what was needed. Expect a further order soon. It is getting "glowing" reports throughout the company. Thanks for your assistance in the early stages with the different size and Fern's flexibility. Good product!" - Satisfied Customer


Contact:  Hector Bourgeois


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