The names given to tubes where the circulation is in a downward direction. These tubes are not in the hot gases, and the boiler water goes down through them to supply generating tubes. Steam is not generated in these tubes.
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Eduardo Lopez · ·
The names given to tubes where the circulation is in a downward direction. These tubes are not in the hot gases, and the boiler water goes down through them to supply generating tubes. Steam is not generated in these tubes.
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