So, if you know the speed and the power usage, then you can determine the flow and the total head loss.

For example, if the speed is 3,450 rpm and the power usage is about 1,938 watts, then the flow is about 40 gpm and the head loss is about 92 feet of head.

If the power usage was 2,775 watts, then the flow would be about 100 gpm and the head loss would be about 76 feet of head.