Use Fig. 6.3 to specify suitable Schedule 40 pipe sizes for carrying the given volume fl ow rate of water in the suction line and in the discharge line of a pumped distribution system. Select the pipe sizes both above and below the curve for the given fl ow rate and then calculate the actual velocity of flow in each.

Use Q = 800 gal / min.

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DN (mm) NPS (in) 250 10 200 150 6. 125 Suction lines 100 4 312 90 80 212 65 50 Discharge lines מ'ן 32 25 - З4 20 15 1/2 6000 8000 10000 15 20 30 40 200 400 600 800 1000 2000 4000 60 80 100 10 Volume Flow Rate, Q (gal/min) 15 6 8 10 60 ++++ ++++ + Volume Flow Rate, Q (m/h) 20 25 30 40 80 100 150 200 300 400 500600 800 1000 1200 2000 ++++ ++++++ Schedule 40 Pipe Size