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What All Maintenance are Carried Out on CO2 Fixed Fighting Installations?


  1. CO2 bottles of fixed CO2 fire extinguishing installation shall be hydraulically tested 20 years after the date on which the bottles were put into use and every 5 years thereafter.
  2. The quantity of the medium in the CO2 bottles should be checked once every 4 years. This may be carried out in batches of 25% of the CO2 bottles annually or 50% of the CO2 bottles biannually or in accordance with the ship's maintenance so long as every CO2 bottle is checked once every 4 years.
  3. All stop-valves should be checked monthly to ensure that they are in their proper open or closed position.
  4. The installation should be checked monthly for leakage.
  5. All CO2 bottles connections for cable operating clips should be checked for tightness every 3 months.
  6. All control valves should be inspected annually and internally inspected every 5 years.
  7. Air should be blown through the piping of the installation annually.

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