What makes a fire pump different from other kinds of pumps?
A. Although Aurora fire pumps are nearly identical in appearance to their 410 and 420 horizontal split-case pumps, they differ in a few subtle ways that make them more suitable for use as Listed Fire Pumps. First, they meet the stringent requirements of NFPA Pamphlet 20, Underwriters Laboratories and Factory Mutual Research Corporation for reliability and unfailing service under the most difficult and demanding circumstances. This fact alone should speak well for Aurora’s product quality and premium design features. Fire pumps are required to produce specific flow rates (GPM) and pressures of 40 PSI or greater. Further, the above mentioned agencies advise that the pumps should produce at least 65% of that pressure at 150% of the rated flow — and all the while operating at a 15 foot lift condition. The performance curves must be such that the shut-off head, or “churn,” is from 101% to 140% of the rated head, depending upon the agency’s definition of the term. Aurora’s fire pumps are no
