Section 15 Requirements for small craft which are not required to comply with the HSC Code
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Special Service Craft, July 2022 - Part 15 Piping Systems and Pressure Plant - Chapter 1 Piping Design Requirements - Section 15 Requirements for small craft which are not required to comply with the HSC Code

Section 15 Requirements for small craft which are not required to comply with the HSC Code

15.1 General

15.1.1 The requirements of Pt 15, Ch 1, 1 Application to Pt 15, Ch 1, 13 Flexible hoses apply, except where modified by this Section.

15.2 Details to be submitted

15.2.1 Details of fuel oil storage tanks over 0,25 m3, where these do not form part of the structure of the craft, are to be submitted.

15.2.2 Design details of the components listed in Pt 15, Ch 1, 2.1 Plans and information 2.1.6 are not required.

15.3 Materials

15.3.1 Materials for which no provision is made in this Chapter may be accepted provided that they comply with an acceptable National or International Standard and are satisfactorily tested as may be considered necessary. Manufacturer's material test certificates are not required unless the material is of unusual or special specification.

15.3.2 Shell valves and cocks, inlet chests, distance pieces and other sea connections are to be of approved ductile material. Due attention is to be paid to the compatibility of the material with that of the shell. Ordinary grey cast iron is not acceptable.

15.4 Aluminium alloy

15.4.1 Proposals for the use of aluminium alloy pipes in bilge systems in machinery spaces will be considered, provided that a single failure in any section of the pipe does not render the whole system inoperable.

15.4.2 Aluminium alloy pipes may be used for fire-fighting systems outside machinery spaces in locations of low fire risk.

15.5 Plastic pipes

15.5.2 The requirements of Pt 15, Ch 1, 8.1 General 8.1.3 do not apply but where plastic pipes are used for bilge and cooling water services they are to be of a type which has been approved by LR. However, fire endurance testing is not required, see Pt 15, Ch 1, 15.5 Plastic pipes 15.5.1.

15.5.3 Where plastic pipes are used in bilge systems in machinery spaces, a single failure in any section of the pipe is not to render the whole system inoperable.

15.5.4 For other services where there are Rule requirements, plastic pipes are to be in accordance with an acceptable National or International Standard and suitable for the intended service conditions.

15.5.5 Plastic pipes are not to be used in machinery spaces and other spaces of high fire risk or on the open deck for conveying fuel oil, lubricating oil or other flammable liquids or for air and sounding pipes to tanks containing such liquids.

15.5.6 Plastic pipes used on the open deck for air and sounding pipes to other tanks are to be located in a sheltered position, protected from mechanical damage.

15.5.7 Plastic pipes used for overboard scuppers, sanitary discharges and seawater systems are to be provided with an approved ship-side valve. When the ship-side valve is arranged such that in any operating condition of the craft it is near or below the waterline, it is to be capable of being closed from a safe position above the bulkhead deck.

15.6 Copper and copper alloys

15.6.1 Where copper and copper alloy pipes are in accordance with an acceptable National Standard/Specification which is applicable to the intended service or media, Table 1.6.1 Minimum thickness for copper and copper alloy pipes need not be applied.


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