Transcription of Pipe Sizing Steam Supply andCondensateReturn Lines
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Pipe Sizing Steam Supply andCondensateReturn Lines
45 Pipe Sizing Steam Supply and condensate return LinesDefinitionsSteam mains or mains carry Steam fromthe boiler to an area in which multiplesteam-using units are branch Lines take Steam fromsteam main to Steam -heated discharge Lines move condensateand flash Steam from the trap to a return Lines receive conden-sate from many trap discharge Lines andcarry the condensate back to the : The velocity ranges shown in SteamPipe Capacity Tables 45-1 through 46-4 canbe used as a general guide in Sizing steampiping. All the Steam flows above a givencolored line are less than the velocities shownin the SizingTwo principal factors determine pipesizing in a Steam system:1. The initial pressure at the boiler andthe allowable pressure drop of the totalsystem.
Trap discharge lines move condensate and flash steam from the trap to a return line. Condensate return lines receive conden-sate from many trap discharge lines and carry the condensate back to the boiler room. NOTE: The velocity ranges shown in Steam Pipe Capacity Tables 45-1 through 46-4 can be used as a general guide in sizing steam piping.
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