The Series 300, 400, and 500 the 2", 3", and  4" Bowie Pumps are designed and recommended to be operated not to exceed 400 RPM and not in excess of 100 PSI of pressure.  At this speed the 2" Bowie Pump will deliver approximately 140 GPM at no discharge pressure.  The 3" Bowie Pump will deliver approximately 238 GPM.  The 4" Bowie Pump will deliver approximately 310 GPM.

The Series 8100 and 9100 the 1¼" and 1½" are designed and recommended to be operated not to exceed 780 RPM.  At this speed either size will deliver approximately 48 GPM and not in excess of 100 PSI of pressure.

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