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Question: water flows through a 4cm wrought iron horizontal pipeline from...

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Water flows through a 4-cm, wrought iron, horizontal pipeline from point A to point B. The pipeline is 50m long and contains a fully open gate valve and two elbows (R/D = 4). If the pressure at B (downstream) is 192kPa and the flow rate is 0.006m^3/s, determine the pressure at point A.
Please show the work and solution.
NOTE: The answer is supposed to be 510kPa

alu TABLE 3.6 Values of K, for Common Hydraulic Valves A. Gate valves Closed K, 0.15 (fully open) Open B. Globe valves Closed K, 10.0 (fully open) Open C. Check valves Closed Hinge (swing type) Swing type: K, = 2.5 (fully open) Ball type: K, 70.0 (fully open) Lift type: K,-12.0 (fully open) Open D. Rotary valves Closed K, 10.0 (fully open) Open
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