IMPELLER DESIGN MAKES DURCO MARK Π PUMPS SUPERIOR!

COMPARE THESE EXCLUSIVE FEATURES WITH ANY OTHER IMPELLER DESIGN:

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silicone rubber " O " ring impeller gasket provides positive corrosion resistant

seal. 4 . Lowest stuff ing box pressures — the back vanes

continually reduce pressures in s t u f f i n g box. 5. Lowes t N P S H r e q u i r e m e n t s — l o n g

sweeping change of flow direc­t ion and wide-open eye area pro­

v i d e t h e l owes t NPSH requ i re ­m e n t s in t h e i n d u s t r y . 6. Good

S lu r ry H a n d l i n g C h a r a c t e r i s t i c s -Vanes extend into the impeller eye

providing pre-rotation of f lu id. Slurries are held in suspension and do not clog

or plug. • Remember, anyone can make a pump to standard dimensions, but ONLY

DURCO GIVES YOU SO MUCH MORE INSIDE, including the exclusive MARK II impeller. For ful l

facts on MARK II pumps, ask your DURCO engineer, or write for Bulletin P-10-lOOa.

|DURCO T H E D U R I R O N C O M P A N Y , I N C . . D A Y T O N 1 , O H I O DURCO

1 . Impeller clearance set in maintenance shop without casing —n< other standard dimension chemical pump has this advantage. Fiel< adjustment can also be made where desirable —without disassembly of pump. 2. Rear cover plate is normal wear surface—not the casing. Reduced maintenance costs resu l t because rear cover is less : ^ j J i ^ ^ P * · than l/2 the replacement cost of the H H I casing. 3. Fully contained, Teflon encased, ι ^ i i ^ %*m