Monthly inspection
Verify that all controls and section valves are in the proper open or closed position, and all pressure gauges are in the proper range.
Quarterly inspection
Verify that the proper quantity of foam concentrate is provided in the foam system storage tank.
Annually inspection
- Visually inspect all accessible components for proper condition.
- Functionally test all fixed system audible alarms.
- Flow test all water supply and foam pumps for proper pressure and capacity, and confirm flow at the required pressure in each section (Ensure all piping is thoroughly flushed with fresh water after service).
- Test all system cross connections to other sources of water supply for proper operation.
- Verify all pump relief valves, if provided, are properly set.
- Examine all filters/strainers to verify they are free of debris and contamination.
- Verify that all control/section valves are in the correct position.
- Blow dry compressed air or nitrogen through the discharge piping or otherwise confirm the pipe work and nozzles of high expansion foam systems are clear of any obstructions, debris and contamination. This may require the removal of nozzles, if applicable.
- Test all fuel shut-off controls connected to fire protection system for proper operation.
3 yearly inspection and then every year
Foam Concentrates: The first periodical control of foam concentrates should be performed not more than 3 years after being supplied to the ship, and after that every year (except protein)
5 yearly inspection
- Perform internal inspection of all control valves.
- Flush all high expansion foam system piping with fresh water, drain and purge with air.
- Check all nozzles to prove they are clear of debris.
Prior to delivery and then every year
Foam Concentrates: For protein based alcohol resistant foam concentrates – test to be performed prior to delivery to the ship and annually thereafter.