Section 6 Air, overflow and sounding pipes for column-stabilised units
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, July 2022 - Part 5 Main and Auxiliary Machinery - Chapter 13 Bilge and Ballast Piping Systems - Section 6 Air, overflow and sounding pipes for column-stabilised units

Section 6 Air, overflow and sounding pipes for column-stabilised units

Parent topic: Chapter 13 Bilge and Ballast Piping Systems

6.1 Size of air pipes

6.1.1 For each ballast tank, air pipes of sufficient size and number are to be provided to permit the efficient operation of the ballast pumping system under conditions referred to in Pt 5, Ch 13, 5.1 General requirements. To allow de-ballasting of tanks intended to be used to bring the unit back to normal draught, and to ensure no inclination after damage, air pipe openings are to be above the worst damage waterline, and positioned outside the defined damage penetration zones, see Pt 4, Ch 7, 4 Watertight integrity.

6.2 Sounding arrangements

6.2.1 Ballast tanks are to be provided with sounding pipes or other suitable sounding devices which are separate and additional to any remote sounding systems. The soundings are to be taken as near to the suction pipes as practicable. Where remote sounding systems are fitted, the indications are to be located in the central control station.

Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.