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> > > Sizing cooling water piping in new plants: > Maximum allowable flow, velocity and pressure drop > ---------------------------------------------------------------------- > Laterals Mains > ---------------------------------------------------------------------- > Norminal pipe, Flow Vel. DP Flow Vel. DP > in. m3/hr m/sec m/100m m3/hr m/sec m/100m > ---------------------------------------------------------------------- > 3 22.66 1.32 4.47 15.86 .93 2.31 > 4 45.32 1.54 4.29 31.72 1.08 2.22 > 6 113.30 1.69 3.19 86.11 1.29 1.92 > 8 203.94 1.76 2.48 147.29 1.27 1.36 > 10 339.90 1.86 2.11 249.26 1.37 1.19 > 12 543.85 2.08 2.10 407.88 1.56 1.23 > 14 702.47 2.19 2.10 498.52 1.56 1.14 > 16 1019.71 2.41 2.09 747.78 1.80 1.16 > 18 1359.62 2.53 1.99 1019.70 1.90 1.17 > 20 ... ... ... 1359.62 2.03 1.17 > 24 ... ... ... 2492.60 2.38 1.19 > 30 ... ... ... 4305.40 2.64 1.11 > ---------------------------------------------------------------------- >
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