APPENDIX H – Check Valves
Surge Analysis and the Wave Plan Method
Supplementary Material: Example Problems and Solutions
Appendix H – Problem 4
H.4 Determine the stationary hydraulic torque for on a 200 mm straight-seat swing check valve carrying a flowrate at a velocity of 2.5 m/s when the disc is inclined at 75 degrees with respect to the vertical axis. Use a suitable drag coefficient for the stationary disc from any fluid mechanics textbook or online sources.
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