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 w/ relief valve
N9000R
$1,044.00Bronze 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 t...
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Jabsco Pumps
Bronze pump Flexible Impeller Lip Seal
777-0001
$483.00Flexible impeller pump. Full cam. Neoprene for water and general purpose pumping. Nitrile impeller is ideal for oil based products. Reduce flow 50% for half cam operation. Use face seal to extend pump life. Do not pump gasoline or other flammable...Frame / Bearing pedestal mount Learn More -
Oberdorfer Pumps
Bronze Pedestal Gear Pump
N9000
$871.00Bronze Pedestal Gear pump. Often used as a oil pump on large ships to pre-lube the bearings or honey production systems.- Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively una...
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Hypro Pumps
Bronze gear pump 24 gpm
BB6
$850.5424 GPM Bronze pedestal mounted gear pump 1". For oils, paint , inks and other lubricating liquids. Pump has packing along the shaft. Do not pulley drive. Without Relief Valve, Seal Kevlar Packing, Bronze Spur Gear, Pump RPM 1725 Max.
Bronze 1" Learn More -
Oberdorfer Pumps
Bronze Pedestal Gear Pump
N9000ES3
$861.84Bronze 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 Rotary Gear Pump w/ motor & relief valve
N990RH-N26
$1,889.00Oberdorfer Close coupled bronze rotary gear pumps.- Bronze Construction with SS shaft
- Helical gears for quiet operation
- Self-lubricating carbon bearings
- O-ring seal for max. leak protection
- The pump drive shaft is connected to the motor shaft by ...
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Oberdorfer Pumps
Bronze Pedestal Gear Pump
N9000S1
$766.16Bronze 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
$1,314.8220 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 -
Oberdorfer Pumps
Bronze Pedestal Gear Pump
N9000S15
$959.85Bronze 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
$883.05Bronze 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...
