Fire pump

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◆ According to NFPA20,centrifugal pump shall be of the overhung impeller design with close or separate coupled end suction type
◆ Pump capacities are based on the calculated system demand
◆ Fire pump shutoff head should not exceed 140% of the nominal value
◆ Recommended the maximum system demand flow correlate to a point on pump curve between 90% to 140% of the pump capacity