Regulation 30 Boilers and other pressure vesselsI1
United Kingdom
In every ship every boiler or other pressure vessel and its respective mountings shall, before being put into service for the first time, be subjected to a hydraulic test to a pressure suitably in excess of the working pressure which will ensure that the boiler or other pressure vessel and its mountings are adequate in strength and design for the service for which it is intended and having regard to—
the design and the material of which it is constructed;
the purpose for which it is intended to be used; and
the working conditions under which it is intended to be used;
and every such boiler or other pressure vessel and its respective mountings shall be maintained in an efficient condition.
In every such ship provision shall be made which will facilitate the cleaning and inspection of every pressure vessel.
Means shall be provided which will prevent overpressure in any part of boilers and other pressure vessels, and in particular every boiler and every unfired steam generator shall be provided with not less than two safety valves. The Certifying Authority may, having regard to the output or any other feature of any boiler or unfired steam generator, permit only one safety valve to be fitted if it is satisfied that adequate protection against overpressure is provided.
Additional requirements for ships constructed on or after 1st September 1984
Every unattended oil fired boiler shall be provided with arrangements to shut off the fuel supply and give an alarm at an attended location in the event of low boiler water level, combustion, air supply failure or flame failure.
Every boiler designed to contain water at a specific level shall be provided with at least two means for indicating the water level, at least one of which shall be a direct reading gauge glass.
Every water-tube boiler serving turbine machinery shall be fitted with a high water level alarm.
Means shall be provided to test and control the quality of the water in boilers.