Reasons for valve vibration
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This post was last edited by Catalyzing a Grain on 2018-5-20 23:09. There is a pressure reducing valve in the workshop; the pressure before the valve is 8 MPa, while the pressure after it is 0.8 MPa. The flow rate is around 15 cubic meters per unit time. The manager said that this vibration is caused by the large pressure difference before and after the valve. But why does a large pressure difference cause vibration in the valve?
The unbalanced force between the front and rear valves increases, resulting in airflow impact； Cavitation is also likely to occur if there is oxygen in the gas
This operating condition requires multi-stage sleeves or labyrinth valves to reduce pressure
The flow vibration is 15 m3/h, which means that the readings on the flow meter fluctuate significantly, with fluctuations of 15 m3/h.
A large pressure difference before and after the valve results in unbalanced forces being generated as the medium passes through the internal components, especially the valve core
Is the source of the unbalanced force resulting from the large pressure difference before and after the valve the fluctuating pressure beneath the valve core, caused by an increase in flow velocity and a higher level of turbulence as the fluid passes through the valve core?
How are the unbalanced forces generated before and after the valve?