If the purpose is high flow rates to distances and alot of places like cooling pump in engines where high pressure is not required, then the centrifugal pump will be good.
If u want high pressure or high capability of overcoming the resistance like water elevating pump and fuel pump in engines, then the displacement pump will be good.
The centrifugal has more flowrates than positive pumps.
The positive pump has more pressures at output than centrifugal pump.
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