FLEXIBLE IMPELLER
How It Works:
A. Flexible impeller blades, upon leaving offset cam, create a nearly perfect vacuum for
instant self-priming
B. As impeller rotates, each successive blade draws liquid and carries from intake to outlet
port
C. As flexible impeller blades contact the offset cam they bend with a squeezing action that
provides continuous, uniform flow.
FEATURES:
Versatile - The flexible impeller pump combines the priming feature of positive displacement
type pumps with the general transfer ability of centrifugals. It will pump either thin or viscous
liquids - can handle more solids in suspension than other types of rotary pumps. It operates at low
or high speeds - can be mounted at any angle and pumps in either direction with equal efficiency.
Self-Priming - Pumps instantly with dry suction lifts up to 10 feet; up to 25 feet when
wetted. Permits cleaner, safer installation. No foot valve required.
Simplicity - One moving part - a tough, long-lived, wear resistant flexible impeller
lubricated by the liquid being pumped. No metal-to-metal pumping action - no gears to jam, clog, or
become noisy.
More Capacity - Flexible impeller pumps, in general require less space because they deliver
greater flow for weight, size and price than other types of pumps. |
CENTRIFUGAL
How It Works:
A. Liquid enters inlet port of pump. Level of liquid must be high enough above the pump
for gravity to push it into pump or pump must be initially primed.
B. Rotating impeller gives velocity energy to the liquid moving it to the periphery of the
volute casing and towards the discharge port.
C. Volute casing discharge arrangement converts velocity energy into static pressure or
available pump head. Flow rate is dependent upon restrictions in the inlet and outlet piping and the
height change and the liquid needs to be moved.
FEATURES:
High Volume Flow - Centrifugal pumps handle high volumes with a smooth, non-pulsating flow.
The flow rate can be regulated from maximum output to no flow with no damage to the pump. An
excellent pump for general transfer applications.
Low Maintenance - Wear due to operation is minimal. Easily disassembled for quick service.
Few moving parts
Easy Installation - Compact size. Discharge port can be rotated to various positions for ease
of piping. |
DIAPHRAGM
How It Works:
A. As diaphragm rises, liquid is pulled into pump chamber, while outlet valve is pulled
closed.
B. When diaphragm comes down, the liquid is forced through the outlet valve, while the intake
valve is pressed shut.
C. Diaphragm pumps can have single or multiple chambers, with smoother flow the result of
more chambers.
FEATURES:
Run Dry Ability - Diaphragm pumps do not depend on pumped liquid for lubrication, thus can be
run dry without damage.
Self-Priming - Liquid can be lifted up to six feet, with no need for external check valves.
Versatile - The compact size, low power requirement, and quiet operation make it the ideal
pump for many marine applications.
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VANE
How It Works:
A. Vanes, upon leaving eccentric portion of liner create a partial vacuum for priming.
B. As rotor rotates, each successive vane draws and carries liquid from intake to discharge
port.
C. When the vanes again contact the eccentric portion of the liner, they force liquid out the
discharge port.
FEATURES:
Durable - heavy duty construction in quality materials gives long life. Body is designed to
resist environmental damage. The vanes and rotor are constructed of a wear resistant long life
material.
Self-Priming - Liquid can be lifted up to three feet for self-priming. Permits less
complicated and more economical installations.
Simplicity - Few moving parts to replace. Maintenance is as simple as loosening three screws.
Rotor, vanes, and seal are lubricated by the liquid being pumped.
Versatile - Excellent compact unit for general utility or transfer applications. Will pump
thin or somewhat viscous products. Can be mounted at any angle and run in either direction.
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