Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 321
e to the system. When water stands in the tank the boileroperator knows that the system is completely full, assuming, of course,all air to have been ejected. Either an altitude gauge or a return pipe from the expansion tankis provided to tell the level of the water. In case a pipe is used itis run… … ^928^ THE LOCOMOTIVE 45 connections to both supply and return mains so as to insure circula-tion sufficient to prevent freezing. The riser mentioned above may beconsidered the connection to the supply line. It should be taken fromthe main supply line as near the boiler as possible so that air…
Locomotives · Steam-boiler explosions
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