Positive Displacement Pumps
These pumps are often thought of as high-pressure pumps. Their
positive displacement of fluid and fixed volume are the result of
the fluid being mechanically moved through their pump passage on a
regular cycle. This means that regardless of the system they
discharge into, the pressure and volume will remain constant. The
power of the driving device and its speed, limit the volume and
pressure.Positive Displacement pumps:Flow rates of GPD, CC/min to
100 GPM typically.Discharge pressures of a 1 to 1000 PSI.Low speed
and fixed volume per cycle, they handle very viscid fluids
well.Smaller than centrifugal pumps.Quiet, do not ad much heat to
the fluid, suitable for shear sensitive fluids.Diaphragm pumps can
easily pass solids, stringy and fibrous foreign matter. Are made in
materials from CI to Titanium and PP, PVDF and PPS engineering
resins.
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Oberdorfer Pumps
Bronze Pedestal Gear Pump
N9000S1
$996.01Bronze Pedestal Gear pump. Often used as a oil pump on large ships to pre-lube the bearings.- Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the backpressure in the...
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Hypro Pumps
Bronze gear pump
GPBN5V
$1,658.7220 GPM Bronze pedestal mounted gear pump. For oils and other lubricating liquids. Exellent for water based fluids. Ryton PPS spur gears provide quiet operation and chemical compatibility. No metal to metal contact. 1/2Hp to 2HP motor required dep...1" Learn More -
Hypro Pumps
Bronze gear pump
GPBN6V
$1,355.72Bronze pedestal mounted gear pump. For oils and other lubricating liquids. Excellent for water based fluids. Ryton PPS spur gears provide quiet operation and chemical compatibility. No metal to metal contact.1" Learn More -
Oberdorfer Pumps
N992R Gear Pump & Mtr
N992RM-J07
$1,485.77Rotary bronze gear pump with electric motor. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long s...1/2Hp 115/230v ODP Learn More -
Hypro Pumps
Bronze Rotary Gear pump
GMBN5VB6
$1,693.77Rotary Gear pump with electric motor. 303 SS fastners, Ryton gears. Heavy duty rotary external Gear pump, heavy duty with motor.Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discha...
3/4" 2HP 115/230v Learn More -
Oberdorfer Pumps
Bronze Pedestal Gear Pump
N9000S15
$1,247.81Bronze Pedestal Gear pump. Often used as a oil pump on large ships to pre-lube the bearings.- Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the backpressure in the...
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Oberdorfer Pumps
Bronze Pedestal Gear Pump
N9000S16
$1,147.97Bronze Pedestal Gear pump. Often used as a oil pump on large ships to pre-lube the bearings.- Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the backpressure in the...
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Hypro Pumps
Bronze Gear pump
GMBN2VA33
$1,369.42Rotary Gear pump end. 303 SS fasteners, Ryton gears.Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. Do not operate the relief valve for more than one minute.
Use for pres...
1/4" 1/3HP 230/460v Learn More -
Oberdorfer Pumps
Bronze Pedestal Gear Pump
N9000S17
$1,254.50Bronze Pedestal Gear pump. Often used as a oil pump on large ships to pre-lube the bearings.- Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the backpressure in the...
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Oberdorfer Pumps
Bronze Pedestal Gear Pump
N4000L
$854.10Bronze Pedestal Gear pump. Often used as a oil pump on large ships to pre-lube the bearings. See performance chart for motor speed VS HP VS performance.- Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite a...
1/2" Learn More
