EQUIPMENT A M P DESIGN
pump ... m e t e r . . . proportion e x a c t fluid quantities o v e r e x t e n d e d p e r i o d s of t i m e ! New McCannameter Diaphragm Pump* delivers exact amounts of fluids for any length of time. Pumps at pressures up to 2500 psi without staging. Operates at speeds up to 900 strokes per minute and flows up to 6GPH.
news N e w Teflon-faced diaphragm permanently bonded to elastomeric backing provides chemical resistance, exceptionally long life. Packless design, positive displacement capsulated cons t r u c t i o n , lifelong lubrication, n o fluid contact with frictional moving parts—these and many other features add up to new performance highs, new low cost!
Write today for bulletin #301 describing and illustrating this completely new McCannameter Diaphragm Pump,*
Summary of Experiences
*Pof. Appl. for.
hills~ mc canna company THE PEOPLE WHO KNOW AND CONTROL FLOW
LEAK T I G H T F L O W C O N T R O L ! H I L L S - M c C A N N A DIAPHRAGM VALVES
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An empirical a n d practical a p proach has characterized nearly all of the test programs carried out to d a t e with the Doyle scrubber. Development work has, in the main, been d o n e to determine the feasibility of wet collection on specific jobs and to obtain design d a t a for full scale installations. Power requirements of the scrubber give positive advantages in higher recoveries a n d a compact u n i t with m i n i m u m space requirements. T h e more difficult cleaning operations require more energy. T h e Doyle scrubber, a device which applies m a n y of the fundamental principles of wet collection in a compact a n d simple m a n n e r , possibly will complement its success as a practical a n d highly efficient scrubber by proving to be a new and useful a p p a r a t u s for basic studies of the mechanisms of wet-particle collection a n d of gas-liquid contact.
Positive flow control for all air, water, liquids, slurries, gases and corrosive services! Exclusive sealing bead diaphragm . . . simplified low-cost, inline maintenance. Write for 12-page catalog #104. HILLS-McCANNA COMPANY, 2345 W. Nelson St., Chicago 18, llliiwii
62 A
rated at 64,000 cubic feet per minute, is m a d e u p of eight scrubber units— two-stage or series scrubbers arranged as four pairs in parallel. T h e space requirements m a y be j u d g e d from a typical scrubber, say, one of 13,000-cubic-feet-per-minute capacity. T h e approximate dimensions of such a unit, expressed as length X width X height (from base to tank top) would be 10 X 6 X 11.5 feet. T h e simple shape of the scrubber permits préfabrication or field fabrication a n d erection with a wide choice of materials of construction. I n addition to standard scrubbers fabricated from mild steel and stainless steels, m a n y installations have been completed using lead sheet supported on a welded steel framework, rybber-covered mild steel (including nozzle), acid-resisting brick and stainless steel nozzle, a n d wood with stainless steel or lead nozzle.
INDUSTRIAL AND ENGINEERING CHEMISTRY
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