Section 9 Air and sounding pipes
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, July 2022 - Part 4 Steel Unit Structures - Chapter 7 Watertight and Weathertight Integrity and Load Lines - Section 9 Air and sounding pipes

Section 9 Air and sounding pipes

Parent topic: Chapter 7 Watertight and Weathertight Integrity and Load Lines

9.1 General

9.1.1 The requirements of Pt 3, Ch 12, 3 Air and sounding pipes of the Rules for Ships and Pt 5, Ch 13, 12 Air, overflow and sounding pipes of the Rules for Ships are to be complied with, as applicable.

9.1.2 Air pipes are generally to be led to an exposed deck and are to be well protected from mechanical damage.

9.1.3 Air pipes are also to satisfy the requirements for intact and damage stability, see Pt 4, Ch 7, 4.5 External openings related to damage stability and Pt 4, Ch 7, 4.7 Weathertight integrity related to stability.

9.1.4 All openings of air and sounding pipes are to be provided with approved automatic type closing appliances which prevent the free entry of water and excessive pressure imposed on the tank.

9.1.5 Pressure/vacuum valves as required by Pt 5, Ch 15, 1 General may be accepted as closing appliances for oil storage tanks.

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