H 22
CAP. 281]
Merchant Shipping (Fire Appliances) Regulations.
[1969 Ed.
[Subsidiary]
Fire hoses, nozzles, etc.
(f) valves of the screw lift type or cocks shall be fitted in such positions on the pipes that any of the fire hoses may be removed while the fire pumps are at work; (g) the water pipes shall not be made of cast iron, and if made of iron or steel shall be galvanized; and
(h) where wash deck lines are not self-draining suitable drain cocks shall be fitted to avoid damage by frost.
34. (1) Fire hoses provided in compliance with these regulations shall not exceed 60 feet in length except that in ships having a moulded breadth of 90 feet or more the length of the fire hoses for exterior locations and for cargo spaces shall not exceed 90 feet in length.
(2) Such hoses shall be made of closely woven flax canvas or other suitable material and shall be provided with couplings, branch-pipes and other necessary fittings, and with a plain nozzle in addition to any spray nozzle required by these regulations.
(3) Every fire hose provided in compliance with these regulations, together with the tools and fittings necessary for its use, shall be kept in a conspicuous position near the hydrants or connexions with which it is intended to be used.
(4) Except in partially decked ships of Group 5 and in ships of Class X and XII, fire hoses provided in compliance with these regulations shall not be used for any purpose other than extinguishing fire or testing with fire appliances.
(5) Every ship which is required by these regulations to be provided with fire pumps operated by power shall be provided with nozzles of 1/2 inch, 5/8 inch or 3/4 inch in diameter or as near thereto in diameter as possible.
(6) Nozzles larger in diameter may be provided if the requirements of these regulations relating to the provision of water for fire fighting purposes are otherwise complied with.
(7) For machinery spaces and exterior locations the diameter of the nozzles shall be such as to obtain the maximum possible discharge from the minimum number of jets of water and at the pressure required by these regulations from the smallest fire pump permitted by paragraph (5) of regulation 32:
Provided that the diameter of the nozzles shall not be required to be greater than 3/4 inch.
(8) For accommodation and service spaces the diameter of the nozzles shall not be required to be greater than 1 inch.
(9) Every spray nozzle provided in compliance with these regulations shall be capable of producing a water spray suitable