Definition of downcomer in English:

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Pronunciation: /ˈdounˌkəmər/


A pipe for the downward transport of water or gas from the top of a furnace or boiler.
Example sentences
  • They responded by putting forward a new plan - using the tides of the Huangpu to wash the existing downcomers and main sewer regularly.
  • The size and number of downcomers installed varies from one type of boiler to another, but downcomers are installed in all naval boilers.
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