Pneumatic diaphragm pump--can the flow rate be adjusted?
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The question is as stated: can the flow rate of a pneumatic diaphragm pump be adjusted? If the switching position of the pneumatic valve spool is fixed, then it cannot be adjusted, right?
It can be adjusted, but it’s rather complicated; I haven’t tried it. In theory, electric heating works, for example, it’s determined by the gas pressure and flow rate, as well as the inlet and outlet sizes of the pneumatic diaphragm pump
Of course, it can be adjusted by changing the pressure and flow rate of the power gas to regulate the pump flow rate. The flow rate is adjusted by regulating the frequency of reciprocation through the size of the power gas manual valve or pressure reducing valve before the pump.
It can be adjusted, but the accuracy won’t be very high
Install a valve at the inlet? Is that okay?
Adjust the air intake volume. If its back-and-forth speed is high, the flow rate will be high; if the speed is low, the flow rate will be low
Reply to 4# zhiyuan1100: How large can the adjustment range be?
Reply to 8# majing*an: The flow rate adjustment range is from 0 to the maximum value (the maximum flow rate specified in the pump’s design)
Reply to 6# Waiting for the beloved: Adjusting the inlet valve can result in insufficient liquid intake by the pump, allowing air to be drawn in, which affects the service life of the diaphragm.
The flow rate of the medium can be adjusted by regulating the pressure of the power air; a higher pressure of the power air results in a faster operating frequency of the diaphragm pump, thereby allowing more volume of the medium to be discharged per unit of time.
By adjusting the valve opening of the air supply, it is possible to control the flow rate of the air pump.