Plunger pump outlet flow regulation method
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Common methods for adjusting the outlet flow rate of piston pumps include frequency conversion control and stroke adjustment. I was wondering if there are any good ways to use outlet valves for regulation, as the output of one pump goes to several different locations, and each of these locations requires separate flow control
The main valve at the outlet of the positive displacement pump cannot be adjusted; the valves connected to the branches can be changed. If one of them is closed, the flow rate in the other valves increases accordingly
The main valve at the outlet of the positive displacement pump cannot be adjusted; the valves of the various branch pipes can be adjusted, but they cannot all be set to the minimum flow rate at the same time.
A flow control valve is installed on each circuit to regulate the pressure at the outlet of the pump in the bypass circuit.
That’s possible; it’s best to add an additional return flow, as the total volume of the pump is fixed.
The suggestions from the 5th floor can be considered. However~~~\"The flow rate of positive displacement pumps...\"~~the flow rate of positive displacement pumps is often adjustable~~~
Yes, it is adjustable, but if one pump supplies several pipelines at the same time, it becomes impossible to adjust them individually
There are some issues with this pump in supplying fluid in multiple directions at once, and you must have noticed that while using it. It is best not to adjust the outlet valve of positive displacement pumps arbitrarily; I have seen cases where the shafts broke as a result. It is recommended to upgrade the piping system, for example by installing some small diaphragm pumps
Using a bypass for adjustment in plunger pumps is a good choice
Thank you. But isn’t variable frequency regulation better?