Statutory Documents - MCA Publications - LY3 - The Large Commercial Yacht Code - 15A Fire Appliances - Vessels of Less than 500GT - 15A.2 Specific Requirements - 15A.2.2 Fire pumps
15A.2.2 Fire pumps
15A.2.2.1 The power driven fire pump should have a capacity of -
| L | = | the length |
| B | = | the greatest moulded breadth |
| D | = | the moulded depth measured to the bulkhead deck at amidships. |
When discharging at full capacity through 2 adjacent fire hydrants, the pump should be capable of maintaining a water pressure of 0.2N/mm2 at any hydrant, provided the fire hose can be effectively controlled at this pressure.
15A.2.2.2 The second fire pump, which may be portable, should have a capacity of at least 80% of that required by 15A.2.2.1 and be capable of input to the fire main. A permanent sea connection, external to the machinery space, should be provided. "Throw-over" sea suctions are not acceptable.
15A.2.2.3 Each centrifugal fire pump should be provided with a non-return valve in the connection to the fire main.
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