I have a centrifugal pump model ETA 80/26, capacity 495 GPM, head 210 feet, BHP 35.5 attached to a chiller for circulation of chilled water in the pipes coming out of chiller.
I want to add 100 more GPM in the same system, is there any method that the same pump capacity increased to 600 GPM?
Methods like increasing diameter of impeller or decreasing head?

Faizan Mkd
Mechanical Engineer