No Other Pump Equals This 



Economy for Deep Well Water 



Works Installations 



COMBINING in one pump the rais- 

 ing of water to the surface and 

 producing automatically a uniform 

 pressure in the mains in a design of pump 

 that occupies small space and which can 

 be located in any convenient position so 

 that wells can be distributed throughout 

 the waterworks system and each deliver 

 water the shortest possible distance 

 through the mains, necessitating only 

 the adding of small mains to connect the 

 pumps when a larger quantity of water 

 is required instead of replacing the 

 principal mains with pipe of larger size 

 are some of the economies of the use of the 



American Combination Deep Well 

 Turbine and Booster Centrifugals 



The accompanying illustration shows, in a 

 general way, a pump of this type installed in the 

 city water works at Rockford, 111. As shown 

 pump is completely equipped with gauges for 

 making tests but the Rockford installation has 

 only four turbine stages at bottom of well instead 

 of six as illustrated. 



This combination consists of a multiple stage 

 turbine at the bottom, or pumping level, in the 

 well for raising water to the surface and a two 

 stage vertical type centrifugal at the surface, operating on the 

 same shaft, for "producing a pressure in the mains. 



The pump in the Rockford installation operates in a 17-inch 

 drillhole, inside of well casing, and id designed to raise 1000 gallons 

 of water per minute 134 feet to the surface and deliver it into the 

 mains at 68 pounds pressure or, in other words, it is designed to 

 operate against a total head of 302 feet, velocity, friction and 

 hydrostatic heads included. 



In this pump a check valve is placed in the discharge pipe and 

 an automatic regulating device regulates the pressure within three 

 pounds, this variation being sufficient to stop or start the motor. 

 An important feature of this pump is the carrying of the. entire 

 weight of the shaft and attached impellers on an improved' thrust 

 bearing devipe at the surface. 



A large number of highly successful installations of this type of 

 turbine enables us to say that it is entirely practical to raise up to 

 3000 gallons of water per minute from depths down to 250 feet with 

 with this combination pump and deliver it against any ordinary 

 domestic or fire' pressure. 



This is only another example of the advanced practice in centrif- 

 ugal pump design which is proving the "American" centrifugal to 

 be the most economical pump in a wide range of uses. Tell us 

 your pumping conditions and let our engineering department sub- 

 mit a design which will be most economical for your requirements. 

 Complete centrifugal catalog No. 117 mailed free for the asking. 



The American Well Works 



General Office and Works: Aurora, 111. 

 Chicago Office: First Nat'l Bank BIdg. 





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