2013年3月18日 · Refer to pump curves and engine table file f43.720. Engine hp is only for installations up to 300ft elevation above sea level and ambient temperature of 77°f. At higher elevations, and higher ambient temperatures, engine must be …
2020年2月9日 · While manufacturer's pump curves go way beyond the ratings above, NFPA 20 section 4.8.1 only allows you to use a fire pump out to 150% of its rated capacity. That means that a 300 gpm pump can be run out to 400 gpm (300 x 1.5) and could easily meet the example demand flow rate.
SFFECO Fire Pumps are the right Choice for most of the Fire Fighting Applications like: Fire Hose Cabinet Systems, Automatic Sprinkler Systems, Deluge Systems, Fire Hydrant Systems, Foam Systems, etc.
General Pumps offers FGBS series state-of-the-art fire pumps with diesel engine or electric motor driven, single-stage End-Suction pump. These pumps are typically used in fire-fighting applications for supplying water to fire hose reels, fire hydrants or sprinkler systems. • Casing Relief Valve for Motor Fire pump
Determine the net horsepower/kilowatts of the engine at the engine speed required for the ‘‘critical” pumping condition(s). To accomplish this, determine the ‘‘critical’’ test from the performance sheets or curves for the selected pump and capacity rating considering maximum horsepower/ kilowatts and maximum rpm required.
2021年12月22日 · A selection of a 1,000 gpm fire pump would put the flow at 147.5% of rated capacity and could work, but is slightly out of the recommended range. A 1,250 gpm fire pump would put the flow at 118% of rated capacity.
® fire pumps selection tables 60 hertz electric/diesel vertical turbine ul listed / fm approved stainless steel impellers 250 gpm, 10fem total head (ft. h20) pressure (psi)* number of stages max. bhp required required motor hp rating full load speed (rpm) flange rating (psi) approximate shipping weight pump only (lbs.) approximate shipping ...