46 MODERN STEAM PRACTICE . ing , were deposits forming to any great extent , it would soon prove fatal to the boiler . To partially remedy this evil the boiler should … Fig . 21 . — Systems of Tubing . be emptied every day , while for other boilers the water must be blown off frequently . With the triangulär System of tubing the steam generated from the bottom row of tubes must take many a zigzag course before reaching the top , or the steam space . To obviate the…
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