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This post was last edited by Guanzhong Caizi on 2015-11-24 at 11:59. Dear friends, the head of a centrifugal pump is related to the diameter of its impeller, the flow rate, as well as the number of stages and speed of the pump. So what determines the head of a metering pump? ?
The head of a metering pump is determined by the back pressure.
. . . . . . For positive-displacement pumps, as long as the pump chamber is damaged, the head can be adjusted arbitrarily
Haha, classmates in grade two, let the seniors in grade three tell you that the flow rate of the fluid in the pump, the pressure, and the heights of the inlet and outlet are all factors that have an impact; the properties of the fluid are obviously the flow rate and pressure
I’m sorry; I misread the question. I’m not too sure about this either
It is determined by the back pressure; otherwise, in the case of positive-displacement pumps, the pressure keeps rising until the pump is damaged!
Back pressure! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !
Metering pumps are generally positive displacement pumps, and their head is determined by their own power, back pressure, and the pressure tolerance limits of the equipment
They should all be equipped with safety valves; without them, the pump is prone to damage. Therefore, it depends on the set pressure of the safety valve.
Metering pumps are generally positive displacement pumps, and their head is determined by their own power, back pressure, and the pressure tolerance limits of the equipment