A standard marine CO2 system consists of several interconnected components. The heart is the battery of high-pressure storage cylinders, housed in a dedicated, accessible, and clearly marked room. These cylinders are connected via a manifold and network of fixed pipes that lead to the protected spaces. Discharge nozzles, strategically positioned for optimal distribution, are fitted at the pipe ends. The system's brain is the remote release station, located outside the protected area (e.g., on the bridge). This station contains the control panel, manual release mechanism, and crucial pre-discharge alarms. Additional elements include pilot cylinders for triggering the main bank, pressure gauges for monitoring, and shut-off valves. All components must be meticulously maintained to ensure immediate functionality in an emergency.

Checking liquid level in CO2 fire cylinders with portable ultrasonic liquid level indicator: