Section 1 General requirements

1.1.1 The requirements of this Chapter apply to piping systems on all types of ship except where otherwise stated.

1.1.2 Whilst the requirements satisfy the relevant regulations of the SOLAS - International Convention for the Safety of Life at Sea, and applicable amendments, attention should be given to any relevant regulations of the MARPOL - International Convention for the Prevention of Pollution from Ships, and applicable amendments, where these impact the design or construction of piping systems. Attention should also be given to any relevant statutory requirements of the National Authority of the country in which the ship is to be registered.

1.1.3 Consideration will be given to special cases or to arrangements which are equivalent to those required by these Rules. Consideration will also be given to the pumping arrangements of small ships and ships to be assigned class notations for restricted or special services.

1.1.4 Piping design is to comply with Pt 5, Ch 12 Piping Design Requirements as applicable.

1.2.1 For ships to which subdivision and damage stability requirements apply, precautions are to be taken to prevent progressive flooding between compartments resulting from damage to piping systems. For this purpose, piping systems are to be located inboard of the assumed extent of damage applicable to the ship type.

1.2.2 Where it is not practicable to locate piping systems as required by Pt 5, Ch 13, 1.2 Prevention of progressive flooding in damage condition 1.2.1, the following precautions are to be taken:

1. Bilge suction pipes are to be provided with non-return valves of approved type.

2. Other piping systems are to be provided with shut-off valves capable of being operated from positions accessible in the damage condition, or from above the bulkhead deck where required by the Rules.

These valves are to be located in the compartment containing the open end or in a suitable position such that the compartment may be isolated in the event of damage to the piping system.

1.2.3 Where subdivision and damage stability requirements apply and where penetration of watertight divisions by pipes, ducts, trunks or other penetrations is necessary, arrangements are to be made to maintain the watertight integrity.

1.2.4 Protection from mechanical damage. Sea water pipes in cargo holds for dry cargoes, including cargo spaces of container ships and ro-ro ships, are to be protected from impact of cargo where they are liable to be damaged.

1.3.1 The following plans (in diagrammatic form) and particulars are to be submitted for approval. Additional plans should not be submitted unless the arrangements are of a novel or special character affecting classification:

1. Arrangements of air pipes and closing devices for all tanks and enclosed spaces.

2. Sounding arrangements for all tanks, enclosed spaces and cargo holds.

3. Arrangements of level alarms fitted in tanks, cargo holds, machinery spaces, pump rooms and any other spaces.

4. Arrangements of any cross flooding or heeling tank systems.

5. Bilge drainage arrangements for all compartments which are to include details of location, number and capacity of pumping units on bilge service. In the case of passenger ships, the bilge pump numeral, as defined in the SOLAS - International Convention for the Safety of Life at Sea , and applicable amendments are to be stated, together with the number of flooded compartments which the ship is required to withstand under damage conditions.

6. Ballast filling and drainage arrangements: a schematic piping drawing showing connection of the ballast water treatment system to the ballast filling and drainage arrangement is to be submitted.

7. Fuel oil filling, transfer, relief and spill/drainage arrangements.

8. Tank overflow arrangements.

9. Blanking arrangements for bilge and ballast piping systems for bulk carriers having floodable holds.

10. Isolation arrangements for bilge systems where cargo holds are intended for the carriage of dangerous goods.

11. Details verifying compliance with the sizing of air pipes required by Pt 5, Ch 13, 12.8 Size of air pipes.

12. Arrangements of fuel oil piping in connection with oil burning installations and oil fired galleys.

13. Arrangements of fuel oil burning units for boilers and thermal fluid heaters.

14. Arrangement of boiler feed system.

15. Arrangements of thermal fluid circulation systems.

16. Arrangement of compressed air systems for main and auxiliary services.

17. Arrangements of lubricating oil systems.

18. Arrangements of flammable liquids used for control and heating systems.

19. Arrangements of power transmission systems for services essential for safety or for the operation of the ship at sea.

20. Arrangements of cooling water systems for main and auxiliary services.

21. Fuel oil settling service and other fuel oil tanks not forming part of the ship’s structure and lubricating and hydraulic oil tanks with a capacity of 500 litres or more, not forming part of the ship’s structure.

22. Arrangements and dimensions of all steam pipes where the design pressure or temperature exceeds 1,6 MPa or 300°C, respectively, and the outside diameter exceeds 76,1 mm, with details of flanges, bolts and weld attachments, and particulars of the material of pipes, flanges, bolts and electrodes.

23. Details verifying compliance with the capacity of the fuel oil treatment plant required by Pt 5, Ch 14, 3.9 Fuel oil treatment for supply to main and auxiliary engines and gas turbines 3.9.1.

24. Details verifying compliance of demands on low pressure air systems by supplying essential services as required by Pt 5, Ch 14, 10.1 General 10.1.3.

25. For water ingress detection arrangements, see Pt 5, Ch 13, 14 Water ingress detection arrangements, plans and information in accordance with Pt 6, Ch 1, 1.2 Documentation required for design review and, additionally, general arrangement plans showing the spaces provided with water ingress detectors, installed equipment locations and cable routes. Details of National Administration approvals are to be included.