V O L U M E 3 0, N O . 4 5 » N O V E M B E R 1 0 , 1 9 5 2 4765

Higli volumetric and mechanical efficiency make these famous pumps economical and reliable units in any vacuum sys tem.

Capacities of Stokes Micro vac Pumps run from 15 to 500 cfm ... pressures to LO microns absolute. Power consumption is l o w and the top-mounte< motor contributes to conn pact design requiring minimum floor space.

Lubrication o f the four moving parts (including the exhaust valve of corrosion resistant Teflon) is fully automatic There are no stuffing-boxes or grease-fittings, and no packing.

Parts are precision-finished, standard an< interchangeable. Freedom from wear assures years of trouble-proof service.

Stores i s the only manufacturer of equipment for complete vacuum systems, including

Microvac mechanical p u m p s , oil diffusion pumps,

McLeod Gages a n d V a c u u m Valves-

Consult with Stokreson t h e application of vacuum

to drying, freeze-diying, impregnating, extraction,

solvent recovery, evaporating, v a c u u m metallizing,

and to other purposes for -which vacuum

deserves exploration,

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STOKES

" Typical installation of Stokes Vacuum Pumps. ' \

Sand lof ntw Vacuum Calculator for rapid„ ., slid·*rule calculations/Includes standard ABCD tog scale. Also stnd for Catalog 700,

- "Stokes Microvac Pumps for High Vacuum" , with copious reference material·^

STOKES MAKES

Plastics Molding Presses;

Industrial Tabletting ·]

and Powder Metal Presses,

Pharmaceutical; Equipment,

Vacuum Processing Equipment,

High Vacuum Pumps and Gages»

Special Machinery;

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