Regulation 12 Pipes, etc
Except where no other arrangement is reasonably practicable, steam supply and exhaust pipes for steering gear, winches and similar equipment shall not pass through the crew accommodation. Where any such pipes do pass through the crew accommodation they shall pass through passageways only, shall be properly encased, and in the case of supply pipes:
shall be constructed of solid drawn steel or other suitable material;
shall be of a scantling sufficient to withstand the maximum pressure from the vessel's boiler system;
shall have all connections made by faced flanges properly jointed; and
shall be fitted with adequate drainage arrangements.
Steam pipes, hot water pipes and calorifiers in the crew accommodation shall be efficiently lagged wherever necessary for the protection of the crew against injury or discomfort. Cold water pipes in the crew accommodation shall be lagged where necessary for the prevention of condensation.
Where any parts of chain pipes and trunks of ventilators to cargo spaces pass through the crew accommodation, they shall be made of steel or other suitable material and be gastight.
Pipes used for crew accommodation services shall be of adequate dimensions having regard to their particular purpose and, in addition, soil pipes and waste pipes shall be so constructed as to minimize the risk of obstruction and to facilitate cleaning.
Soil pipes shall not pass overhead in mess rooms, sleeping rooms, dry provision store rooms or galleys, except where it is impracticable to place them elsewhere.
No soil pipe or waste pipe shall pass through drinking water tanks or other fresh water tanks.
Hawse pipes shall not pass through the crew accommodation.