The penetration of watertight bulkheads and watertight decks by rigid non-metallic piping is prohibited except when __________.

Question

Accepted Answer

using an acceptable metallic fitting, welded or otherwise is attached to the bulkhead or deck by an acceptable method

Answer

the rigid non-metallic plastic pipe is at least of schedule 160 and a metallic shut off valve is provided adjacent to the through deck or bulkhead fitting

Answer

metallic shut off valves are welded to nonmetallic hull materials

Answer

two non-remotely operated metallic valves are installed on either side of the deck or bulkhead regardless of accessibility

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