Fire Suppression Systems and Gas Detectors

Managing fire risk on a boat requires specialized equipment that can pass reliability tests in corrosive environments. A gas detector must be positioned correctly based on the density of the fuel: LPG settles at the lowest point in the bilge, while gasoline tends to saturate engine compartments. Installing an automatic system, such as a total-flooding suppression system, eliminates the need for direct manual intervention in areas that are hard to reach during an emergency. Component selection must always account for the volume of the protected compartment - an essential parameter for ensuring that the extinguishing agent floods it effectively.

Our technical approach guides you in verifying system compatibility. Before proceeding, always check the sensor supply voltage and its ability to interface with the instrument panel or a gas shutoff solenoid valve. At Nautiba, we make sure delivery times are clearly communicated so you can plan maintenance work or safety upgrades without unexpected vessel downtime. Pre-sales advice is the starting point: if you have questions about positioning or wiring, we analyze your configuration together to prevent purchasing errors.

Criteria for effective on-board protection

• Always verify that the gas sensor is certified for the type of fuel used (LPG or gasoline vapors).
• Check that the sensors have an IP rating suitable for installation in the bilge or engine compartment.
• Make sure the volumetric capacity of the automatic extinguisher exceeds the volume of the engine compartment to be protected.
• Verify the electrical compatibility of the solenoid valve with your boat's 12V or 24V system.
• Plan sensor replacement according to the operational service life indicated by the manufacturers.

Where should the LPG sensor be installed?

LPG is heavier than air, so the sensor must be mounted as close as possible to the bottom of the bilge or at the lowest point of the compartment where gas could accumulate.

How do I know if an automatic extinguisher is suitable for my engine?

You need to measure the engine compartment volume in cubic meters. Each extinguisher has a specific flooding capacity; choose a model that covers the entire calculated volume to guarantee the effectiveness of the extinguishing agent.

Do gas detectors require calibration?

Some models require periodic verification. Always consult the sensor's technical manual to determine whether the component needs functional testing or specialized technical calibration after a certain period of operation.

What happens if the power supply is unstable?

Sensors with CE-compliant components must handle the voltage fluctuations typical of on-board batteries correctly, but an unstable voltage can damage sensitive electronics: always use properly rated wiring and dedicated thermal protection.

How can I test the system?

Every system has a dedicated test button. Activate it regularly to verify that the alarm and the control outputs to the solenoid valves work correctly, without having to wait for a real emergency.