Test video of the causes of water hammer occurrence.
The cause of water hammer is hypothesized to be related to flow rate, and we measured the internal pressure under different flow rates. Additionally, water hammer can be recreated by gradually lowering the voltage when the pump is stopped.
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Conditions Pump 50DWV5.75B Check valve is DYCV2 + shut-off valve is VP600D Piping height is 6.2m, water flow rates of 100L/m, 150L/m, 200L/m, 250L/m, and 270L/m will be tested in 5 separate trials.
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In some cases, it is possible to reduce the output from 0.75 kW to 0.4 kW, which has energy-saving effects.
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