21. To calculate hydraulic horsepower (HHP) multiply discharge pressure in (P) by pump output (Q) in gallons per minute. The numerator is then divided by a conversicn factor of 1714.
21. To calculate hydraulic horsepower (HHP) multiply discharge pressure in (P) by pump output (Q) in gallons per minute. The numerator is then divided by a conversicn factor of 1714.