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During operation and as start/stop cycles grow, gas turbine casings can begin to deteriorate and become deformed because. Oxidation can cause a loss of surface parallelism and finishing, which results in imperfect contact between mating surfaces. This can create a hot air leakage at the circumferential flanged connection between the combustor and turbine casings (cross-flange).
Benefits of the cross-flange upgrade
A dynamic response improvement (DRI) upgrade can improve your gas turbine’s reaction to grid disturbance and instability and help achieve greater flexibility and reliability.