The Efficiency of Every 



"American" Centrifugal Pump 

 Is Proved by the Most Rigid Test 



When you buy an "American" Centrifugal 

 there is neither experimenting or jiue.ss work, it 

 has been carefully tested under actual pumping 

 conditions, its characteristics have been plotted 

 and its accomplishment is accurately known. 



Combining known efficiency with & pump de- 

 signed especially to meet the conditions, no matter 

 what they may be, instead of attempting to adapt 

 conditions to a single type of pump, is what has 

 built the reputation for efficiency and economy of 

 the "American" Centrifugal. 



It is the result of being pump designers and 

 hydraulic engineers with the facilities for making 

 the most exacting tests instead of being merely 

 pump builders. 



At the top of the page is shown an end per- 

 spective of the "American" hydraulic laboratory, 

 located on the bank of the Fox River, immediately 

 adjoining our works, where there is an abundance 

 of water and where all pumps up to 36 inch are 

 tested under actual pumping conditions. 



No other maker of pumps has so perfect test- 

 ing facilities and it is for the reason that we have 

 deemed it necessary to go to this expense to main- 

 tain the standard of the "American" Centrifugal 

 to the highest possible efficiency that is the best 

 guarantee of its greater economy. 



Every size of every type of "American" 

 Centrifugal is carefully tested in this laboratory 

 and it must meet our standard of efficiency before 

 it is permitted to leave our works. 



Here is a sample test: 



The accompanying plotted curves are the 

 characteristics of the pump illustrated at the bot- 

 tom of the paga. , 



-3 K 9 Mr 



i-"O^^^n.VKr-.fcL^jv.?C.E4^t>utt*LlI 



This pump has a 15 inch discharge pipe and 

 was designed for irrigation pumping against a com- 

 paratively low head. 



The; characteristics show that it delivers 6,000 

 gallons per minute, against a 48 foot head when run- 

 ning at, 700 revolutions per minute, consuming 88.5 

 horsepcjwer and attains a mechanical efficiency of 

 81.5 pep cent. But also note that the power curve 

 turns djown beyond the point of highest efficiency 

 making impossible the burning out of the motor if 

 the head is lowered. 



And if you were to order any one of our 50 

 other regular styles of Centrifugals, or any of our 

 especially designed Centrifugals, we are able to show 

 the characteristics in the same manner and we are 

 ready 'to guarantee our efficiencies. 



The reason no other pump equals an 

 "American" Centrifugal in efficiency and 

 economy Is because it is not only the high- 

 est development of the most modern type 

 of pump but every claim made for it is 

 definitely proved by actual test. 



Our general Centrifugal catalog No. 117 Is the 

 most complete ever issued. Write for it. 



The American Well Works 



General Office and Works: Aurora, III. 

 Chicago Office: First National Bank Building 



