CENCO POLAR WATER STILLS 

 ELECTRICALLY HEATED 



In Sizes from 1 to 15 Gallons per Hour 



No. 4126 



SCIENTIFICALLY DESIGNED-CAREFULLY CONSTRUCTED 



Distinctive Features of Construction 



1. TRIPLE WALLED CYLINDRICAL CONDENSER 



2. VAPOR FLUE 



3. STEAA-I SEPARATOR 



4. HEAT EXCHANGE 



5. WESTINGHOUSE BAYONET HEATERS ^^r. r^r ^r^n^^rr- 



6. BASE WITH HEATER INTERCHANGEABLE FOR ELECTRIC, 



GAS OR STEAM HEAT 



results obtained 



EFFICIENT condensation— Due to: 



A. Triple cylindrical condensing surface, with large araa exposed to vapor. 



PURITY OF DISTILLATE— Due to: 



A. Wide vapor flue, preventing "sucking" over of droplets by vapor stream. i,„.„K^r 



B. Length of vapor flue, preventing boiling over, foaming or spattering into condensing chamt>er. 



C. Steam separator, which returns to boiler any water condensed in the flue, or any entrainea souas. 



D. High temperature of cooling water, about 180°F., driving off any odors or dissolved gases. 



ECONOMY OF POWER— Due to: 



. A. High temperature of cooling water when it enters the boiler, about 180''F., requiring little energy 

 to raise it to the boiling point. . 



B. Westinghouse Bayonet Heaters, designed to secure highest efficiency. 



COLD DISTILLED WATER— Due to: 



A. A heat exchange, which cools the distillate, thereby extracting and conserving any waste heat 

 energy, as well as furnishing cold distilled water. 



For full description, send for Bulletin No. 70 B 



CENTRAL SCIENTIFIC COMPANY 



(Lake Shore Drive, Ohio and Ontario Streets) 

 460 East Ohio Street CHICAGO, U. S. A. 



