Colour coding used on-board Ships

Engine room has maze of pipe lines so for better understanding for the crew. The pipe line are generally coloured depending of type of fluid they are carrying. This is not only important for the crew, but also for the people less familiar with the ship. To achieve this all the pipes have colour either painted or coloured tape that stands for the liquid in that pipe.

Blue Fresh Water

Green Sea Water

Sliver Steam

Brown Bunker

Maroon Heavy fuel oil or Residual oil

Pink Diesel oil

Yellow Lube oil

White Compressed Air

Black Sludge or Bilge

Red Fire Main

For some ships it may vary slightly , but in general it remains same.

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Marine Engineering

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