Actual, Field, Site pump performance curve

Mostly field conditions that can actually change the pump field H-Q and/or HP-Q (Horse Power-Capacity) performance, compared to the factory conducted results, Due to 

  1. Operating a pump in reverse (wrong direction) will have a very large impact on the pump performance, resulting in a much steeper (lower flow rate) H-Q curve. This most often happens on initial startup

Finally 

  • The pumps performed the way the factory system (pipe, temperature, viscosity, … etc. ) allowed the pumps to perform ( Design )
  • The pumps perform the way the plant (pipe, temperature, viscosity, . etc. ) system allows the pumps to perform (Actual )