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
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 -
Oberdorfer Pumps
Bronze Pedestal Gear Pump w/ relief valve
N9000LRS15
$1,393.47Bronze Pedestal Gear pump with relief valve. 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 b...
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Oberdorfer Pumps
Bronze Pedestal Gear Pump w/ relief valve
N9000RE
$1,357.20Bronze Pedestal Gear pump with relief valve. 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...
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Oberdorfer Pumps
Bronze Pedestal Gear Pump w/ relief valve
N9000RES17
$1,388.40Bronze Pedestal Gear pump with relief valve. 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 b...
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Oberdorfer Pumps
Bronze Pedestal Gear Pump w/ relief valve
N9000RS18
$1,708.20Bronze Pedestal Gear pump with relief valve. 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 b...
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Oberdorfer Pumps
Bronze Pedestal Gear Pump w/ relief valve
N9000RS3
$1,357.20Bronze Pedestal Gear pump with relief valve. 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 b...
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Oberdorfer Pumps
Bronze Pedestal Gear Pump w/ relief valve
N1000R
$401.70Bronze Pedestal Gear pump with relief valve. Often used as a coolant pump on welding torch. Pump flow is reversible.- Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffecte...
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Oberdorfer Pumps
Bronze Rotary Gear Pump & Motor
N61K10G-01C33
$716.30PUMP AND MOTOR, no relief valve.This Bronze Rotary Gear Pump is popular among OEM users like generator Onan. It is a diesel fuel transfer pump featuring an all bronze design and 303 stainless steel shafts with options of non-metallic gears and a...
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Oberdorfer Pumps
Bronze Rotary Gear Pump & Motor R
N61010GR-01F02
$677.30PUMP AND MOTOR with relief valve.This Bronze Rotary Gear Pump is popular among OEM users. It is a diesel fuel transfer pump featuring an all bronze design and 303 stainless steel shafts with options of non-metallic gears and a variety of shaft s...
