Marine Machinery Regulations (SOR/90-264)

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Regulations are current to 2024-10-30 and last amended on 2023-12-20. Previous Versions

SCHEDULE XSteam, Boiler Water and Cooling Water Systems

Item	Requirements
1	Steam pipes and connected components through which steam passes shall be designed, constructed and installed to withstand the maximum working stresses to which they may be subjected.
2	Means shall be provided for draining every steam pipe in which dangerous water-hammer action may occur.
3	Where a steam pipe or component may receive steam from any source at a higher pressure than that for which it is designed, it shall be fitted with a suitable reducing valve, relief valve and pressure gauge.
4	Each steam generating system that provides services essential for the safety of the ship, or that could be rendered dangerous by the failure of its feed-water supply shall be fitted with at least two separate feed- water systems, including feed pumps, but a single penetration of the steam drum is acceptable.
5	Unless over-pressure is prevented by the pump characteristics, means shall be provided to prevent over-pressure in any part of the system.