Appendix 9 - Pipe Connectors, Joints, Hangers and Supports

Clasification Society 2024 - Version 9.40

Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.647 – Guidelines to Minimize Leakages from Flammable Liquid Systems – (Adopted on 6 June 1994) - Annex - Guidelines to Minimize Leakages from Flammable Liquid Systems - Appendix 9 - Pipe Connectors, Joints, Hangers and Supports

Appendix 9 - Pipe Connectors, Joints, Hangers and Supports

There are many different types of pipe connectors and joints, some of which are not considered suitable for oil systems. In general, flanged joints conforming to recognized standards should be used. Compression fittings and other types of connectors should be approved for the intended service. The number of joints should be kept to a minimum in oil systems.

Pipes in oil systems should be adequately supported. Supports or hangers should not be used to force alignment of piping or system components where the alignment is incorrect. Any hangers or supports which have been removed for maintenance purposes should be refitted when the task is completed.

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