Section 6 Emergency bilge drainage
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 2 Ship Piping Systems - Section 6 Emergency bilge drainage

Section 6 Emergency bilge drainage

Parent topic: Chapter 2 Ship Piping Systems

6.1 Emergency bilge drainage

6.1.1 In machinery spaces the emergency bilge suction required by Pt 15, Ch 2, 4.1 General 4.1.5 and Pt 15, Ch 2, 5.1 General 5.1.4 is to be led to the largest available power pump, which is not a bilge, propulsion or oil pump, from a suitable low level in the machinery space and is to be fitted with a screw-down non-return valve with an extended spindle and hand wheel situated above the floor plating.

6.1.2 As an alternative to Pt 15, Ch 2, 6.1 Emergency bilge drainage 6.1.1, or in compartments other than machinery spaces, the emergency bilge pumping arrangements may be provided by a portable submersible self-priming pump of capacity not less than that required by Pt 15, Ch 2, 8.3 Capacity of pumps 8.3.5.

6.1.3 The pump referred to in Pt 15, Ch 2, 6.1 Emergency bilge drainage 6.1.2 together with its suction and delivery hoses is to be stored in a locker marked `For emergency use only' and is to be available for immediate use. Arrangements to facilitate safe handling under adverse conditions are to be provided. If the pump is electrically driven it is to be supplied from the emergency switchboard.

6.1.4 Where UMS (Unattended Machinery Space) notation is to be assigned, the requirements of Pt 16, Ch 1, 4.7 Bilge level detection 4.7.2 are not applicable for valves serving an emergency bilge system, provided that:

  1. the emergency bilge valve is normally maintained in a closed position;

  2. a non-return device is installed in the emergency bilge piping; and

  3. the emergency bilge suction piping is located inboard of a shell valve that is fitted with the control arrangements complying with Pt 16, Ch 1, 4.7 Bilge level detection 4.7.2.

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.