Quote:
Originally posted by nikhsub1
Can someone explain this P-Q curve to me? How does the 1250 stack up?
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I got this one.
If you run the pump with no restriction, then it's giving out 100% of its effort to move water, and since this pump is centrifugal in nature, which means that it's about 70% efficient in converting electrical energy into a waterflow (which can be calculated), then you can easily see that if you achieve half of the max flow rate once this thing is installed, your efficiency (aka energy efficiency)is somewhere around 40%.