Alert
  • Published: 1 Dec 2023

Failure of proportional valve in saturation chamber control

Failure of proportional valve in saturation chamber control
Failure of proportional valve in saturation chamber control

Description of Incident

There was a failure during saturation diving operations. There were no injuries to personnel nor damage to equipment, but time was lost.

The automatic control system for the hyperbaric chamber detected that there was a proportional valve command/feedback discrepancy and stopped pressure control of the hyperbaric chamber. The valve malfunction forced an abort of diving operations and lost time.

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