development of the Northern® gear pump began in the
1920’s. With the onset of the depression in late 1929,
all business activity slowed significantly. John Hawley,
owner of Northern® Pump Company, made a strategic decision
to redesign the Northern® gear pump so that it could
outperform other gear pumps in high pressure applications.
The new pump was designed in such a way that it was easily
modified to suit unique requirements imposed by customers.
The emphasis on high quality and heavy duty performance
capability guided the development of the Northern® gear
pump. The use of nitrided alloys allowed the pump to be
used in high temperature applications, custom designed roller
bearings improved pump life in high pressure applications,
and the development of a proprietary bronze alloy improved
both pump life and pump reliability.
In the 1950’s, the design of the Northern® pump
continued to evolve. The introduction of ground gears allowed
the pump to be used at higher speeds and higher pressures.
Mechanical shaft seals began to be used to accommodate higher
suction pressures. The “hydraulically balanced”
drive shaft design was introduced to eliminate the axial
forces imposed on the drive shaft by high suction pressure
gear pump design continues to change. The use of ceramic
wear plates and tungsten carbide bearings has extended the
application of the pump into abrasive applications. The
use of stainless steel materials has extended its use into
• High discharge pressures to2000 PSIG
• Flow rate capacities to 210 GPM
• Extreme suction conditions from 28” Hg to
• Handling high viscosities of up to 1,500,000 cP
• Ability to meter accurately within 98%
• Pumping temperature ranges of -65° F to 850°
• Lower maintenance
• Lower downtime expenses
• Long pump life and ease of repair
• Chemical process industries
• Refining and petrochemicals
• Adhesives products
• Pharmaceuticals and food products
• Power generation
• Oilfields and pipelines
• Military and marine
While many companies only offer
to provide a pump, Northern offers engineering as solution
to your pumping needs, providing mounting bases, motors,
couplings and security equipment, gear boxes, heating jackets,
variable frequency drives, etc.
We can provide the pump and drive equipment that you need
for your application.
4000. The 4000 series pump is made from carbon
steel and is traditionally designed with a five plate modular
construction, best for the majority of applications. This series
pumps are designed for nearly any liquid transfer application,
particularly those involving extremes of temperature, viscosity,
pressure and inlet conditions.
Northern® ECC Series with ceramic liner plates solve difficult
pumping applications including problems involving low lubricity
or abrasive liquids at higher pressures. We also provide seal
flush cavities with double mechanical seals for emission control
in critical applications.
Factory pump rebuild: Our mechanics carefully dissemble and inspect
the pump to determine which parts need replacement or reconditioning.
After we have been authorized to proceed with the rebuild, we
will reassemble the pump with the necessary new and reconditioned
• All rebuilt pumps carry a full new pump
• Remanufacturing your Northern® pump saves money
• Most repairs are completed in less than four weeks