How to calculate the flow rate of a pneumatic control valve? Urgent! Urgent! Urgent!
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The pneumatic control valve is used in the return inlet pipeline at the outlet of the water ring vacuum pump. The outlet pressure is 120 kPa(a), while the inlet vacuum level is 16 kPa(a); it is required that the vacuum level be adjusted within the range of -0.08 to -0.09. The opening degree of the pneumatic valve is controlled based on the signal from the pressure transmitter at the inlet. The maximum pumping capacity of the vacuum pump is 280 m3/h. How should the flow rate of the pneumatic control valve be determined? Maximum and minimum flow rates! Thank you so much!
Based on the inlet and outlet pressures you provide, as well as the pipe size, it is possible to calculate the flow rate