Ferries and RoRo
Ferries and RoRo - Ferry fire protection systems use seawater as a medium to extinguish fires by means of an onboard fire pump. In a real emergency then using seawater is a very effective and efficient means of fighting a fire. However, using seawater during routine annual wet function testing of the fire protection systems will over time cause the system distribution pipe work to corrode. The corrosion builds up and will become detached, falling into the flow path of the firewater. This will ultimately cause blockages at the deluge nozzles and when the corrosion gets bad enough, it can cause blockages to the actual pipe work itself. Even with proper clean up and maintenance requirements met, salt water, will also cause corrosion to the vessel infrastructure and deck.
The ability to use vapor instead of salt water for at least some of the required annual sprinkler tests will considerably extend the life of a vessel, the onboard equipment and deluge piping by reducing the spray of corrosive seawater, officials said.
Similar systems, he explained, are already being used in various locales with similar special deluge fire protection systems such as nuclear power stations, offshore oil rigs and other waste treatment and refinery operations.
Siron Dry Deluge Testing (DDT) uses a non-toxic, environmentally friendly vapor which is pumped through the system downstream of the deluge valve. This eliminates the requirement to utilize water as a testing medium for routine testing. By implementing a DDT protocol entire fire protection systems can be tested from the deluge valves to the most remote nozzle. DDT can detect blocked or partially blocked nozzles, blocked or partially blocked pipe work and also damaged deluge nozzles. DDT meets NFPA, NORSOK, UK HSE testing criteria and has been 3rd party independently attested for use by Bureau Veritas.
Where there’s smoke: WSF explores potential water-free sprinkler test
An outpouring of smoke, or the lack of it, may help emergency responders from Washington State Ferries locate fire...
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USA (832) 239-5351, AUS 08 9468 0400, UK 020 3287 2555,
NL +31 53 750 30 44.
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