Duty point


This is the point where the pump curve and the system curve intersect. If nothing changes, the centrifugal pump will pump at this point. Hopefully this will be within 10% of the pump’s best efficiency point. (BEP).

If the pump curve does not intersect the system curve at or near the BEP, you can:

  • Adjust the pump speed by using a variable frequency drive  (VFD)
  • Adjust the system curve by throttling the system curve.