Mid-West Associates
Manufacturer's Representatives in Southern California
And Southern Nevada Since 1996
Useful Formulas

Break Horsepower (BHP) at duty point =

                                 GPM x TDH x S.G.
                              3960 x pump efficiency

Water Horsepower (WHP) =

                                GPM x TDH
                                     3960

Horsepower=

                             KW x 1.34               or                 KW= HP x .756

GPM = CFS x 448.8

GPM = CFM x 7.48

GPM = MGD x 694.4
Mid-West Associates
4070 Palm St.
Unit 703
Fullerton, CA 92835
Phone # (714)441-0950
Fax # (714)441-0951
Email: info@mid-westassociates.com

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