Metering Pumps - Four Pump Series
- JN Series: 5 models from 1 to 7 GPH (4-28 L/hr), simplex,
duplex and triplex metering pumps available.
- MF Series: 11 models from 5 to 90 GPH (19-340 L/hr), ),
simplex, duplex, triplex and quadruplex metering pumps available
- MH Series: 5 models from 96 to 180 GPH (363-681 L/hr), ),
simplex and duplex metering pumps available
- JR series
has been superseded by the JN Series. While fully
supported, it is no longer being sold.
 Madden diaphragm metering pumps are designed for tough industrial
jobs where chemicals must be pumped 24 hours a day, 365 days
a year. Engineered materials are used for the wetted end to pump
virtually any chemical, from acids to caustics. Even viscous
liquids and suspended solids can be pumped with volume controlled
accuracy.
Metering Pump - Accuracy
Repetitive accuracy of +/- 1% over a 10:1 turndown ratio is
achieved with the stroke adjustment knob located conveniently
on the top of the pump.
Metering Pumps - Long Service Life, Low Maintenance
The simple mechanically actuated diaphragm design eliminates
pesky hydraulic systems and packing glands used in many metering
pumps. Large bearings and shafts, continuously lubricated with
a bath of oil give many years of reliable service. Precision
bronze worm gears and steel worm drive shafts convert motor rpms
to linear piston pumping power. Replacing worn parts is fast,
simple, with common tools.
Rugged Construction Madden metering pumps are heavy duty industrial
grade, using standard industrial 56 frame motors and worm gear
reducers to produce reliable pumping power designed to provide
many years of reliable service. Heavy duty aluminum gear box
and pump body
castings, precision machined and bolted assembly. Wetted end
parts made from a selection of corrosion resistant materials.
Thick Nylon reinforced diaphragms for tough pumping service.
Industrial grade 56 frame electrical motors are available to
meet any enclosure and power supply requirement.
Madden metering pumps are industrial grade construction, with
heavy gearing, shafts and bearings, and industrial grade electric
motors.
Some
of the lower capacity competitors do not use electric motors
to drive the diaphragm, using a solenoid instead. The Madden
pumps will outlast these consumer grade products by decades.
Compared to some competitors hydraulically actuated diaphragm
type metering pumps the Madden pumps do not have hydraulics to
keep in operation. Madden pumps do not need replacement of hydraulic
fluid, seals and components, and the Madden pumps will never
leak hydraulic fluid into the industrial process. Madden diaphragm
metering pumps are simple in design and construction, requiring
minimal maintenance.
Repairs are done with common tools.
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