4.11 Protection against flooding
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Codes - 2009 MODU Code - Code for the Construction and Equipment of Mobile Offshore Drilling Units, 2009 – Resolution A.1023(26) - Chapter 4 - Machinery Installations for All Types of Units - 4.11 Protection against flooding

4.11 Protection against flooding

  4.11.1 Each seawater inlet and discharge in spaces below the assigned load line should be provided with a valve operable from an accessible position outside the space on:

  • .1 all column-stabilized units;

  • .2 all other units where the space containing the valve is normally unattended and is not provided with high bilge water level detection.

  4.11.2 The control systems and indicators provided in paragraph 3.6.5.1 should be operable in both normal conditions and in the event of main power failure. Where stored energy is provided for this purpose, its capacity should be to the satisfaction of the Administration.

  4.11.3 Non-metallic expansion joints in piping systems, if located in a system which penetrates the unit’s side and both the penetration and the non-metallic expansion joint are located below the deepest load waterline, should be inspected as part of the dry-dock survey in section 1.6 and replaced as necessary, or at an interval recommended by the manufacturer.

Parent topic: Chapter 4 - Machinery Installations for All Types of Units
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