This case study highlights a successful intervention involving remote diagnostics and field balancing of a turboexpander driving a centrifugal compressor, gearbox, and generator. After a major overhaul, vibration levels at the expander’s drive end exceeded alarm limits, risking long-term operation. Protected by a BN 3500 rack integrated with System1® for continuous monitoring, the unit required immediate attention to avoid production loss.

During startup in October 2023, excessive vibrations were detected. Analysis via System1® revealed high unbalance at the expander’s drive end bearing. The Bently Nevada MDS team identified the issue and recommended remote field balancing with the OEM representative. A trial weight was added to evaluate the vibration response, leading to a successful reduction in vibration levels below alarm thresholds.

This intervention, facilitated by System1® data and MDS expertise, minimized downtime and avoided significant production losses, demonstrating the value of the ongoing Service Support Agreement (SSA) between the customer and Bently Nevada.