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THE IBBIGATION AGE. 



THE UNEQUALED EFFICIENCY OF THE CEN- 

 TRIFUGAL PUMP IN IRRIGATION. 



Many persons engaged in irrigation farming are 

 not aware that where water must be elevated to the land 

 tnd in conditions favorable to the in&tnllation of cen- 

 trifugal pumps, this type of pump has a much higher 

 efficiency than any other. Pumps of this type fre- 

 quently attain an efficiency of 80 per cent of the me- 

 chanical power and also have the advantage over any 

 ether pump of having no valves or other delicate parts 

 likely to get out of order. 



Conditions favorable to centrifugal pump instal- 

 lation are wherever the pump can be placed close to the 

 water supply so that the head in the intake pipe will 

 wot be greater than will be overcome by the force of 

 gravity. This may be either in pumping from rivers, 

 creeks or canals, or from wells of sufficient size to 

 admit a centrifugal of the vertical type. 



In the accompanying illustration is shown the two- 

 stage type of centrifugal made by The American Well 

 Works, Aurora, 111. The makers of this pump affirm 

 that it attains unusually high efficiencies for the rea- 

 sons that the- impeller is accurately machined to the 

 casing and has a perfect cut-off at the outlet, making it 

 impossible for water to pass the discharge pipe and be 

 repumped, and there is no sudden change of direction 

 of the water in passing through the pump. In the mul- 

 tiple stage pumps the connection between the stages is 

 by means of long pipe bends of increasing diameter, af- 

 fording an easy flow and reducing friction to the mini- 

 mum. 



These features enable the single stage centrifugals 



of this make to operate against total heads up to 125 

 feet and the two stage pumps up to 250 feet, with 

 corresponding increase for additional stages, and attain 

 an actual mechanical efficiency of 60 to 80 per cent. 



The manufacturers of this pump issue a free bulle- 

 tin entitled "Cost of Irrigation," which gives much 

 practical data on costs of pumping which should be of 

 interest to every irrigator. 



Two Stage Type 01 L-entritugal Pump. 



The BUCKEYE FOUR-CYCLE 



GAS ENGINE 



SIMPLE IN CONSTRUCTION - ECONOMICAL IN OPERATION - RELIABLE 



CATALOG ON APPLICATION 



BUCKEYE ENGINE COMPANY, 



Salem, Ohio 



When writing to advertisers please mention The Irrigation Age. 



