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.
Table 45-1. Steam Pipe Capacity at 5 psig—Schedule 40 Pipe Table 45-4. Steam Pipe Capacity at 60 psig—Schedule 40 Pipe Table 45-5. Steam Pipe Capacity at 100 psig—Schedule 40 Pipe 4 10 24 52 81 160 270 490 730 1,040 1,930 3,160 6,590 12,020 19,290 6 15 31 68 100 210 350 650 970 1,370 2,540 4,170 8,680 15,840 25,420 9 21 44 97 150 300 500 ...
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