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.

Oberdorfer Pumps

Rubber Impeller Bronze Pump

405M-04M35

$1,616.00

Oberdorfer rubber (flex) impeller pump with solid cast bronze housing. Close coupled Rubber Impeller Pumps are made of high quality bronze for maximum corrosion resistance. The rubber impeller is mounted on a separate stainless steel shaft which i...

115v 3/4HP 1" TEFC Learn More

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Oberdorfer Pumps

Bronze Rotary Gear Pump w/ motor & relief valve

N990RH-M46

$2,114.00
Oberdorfer 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 shaf...
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Hypro Pumps

Cast Iron Gear pump 1/4"

GMCV2VA33T

$2,131.57

Rotary Cast Iron Gear pump with electric motor. 303 SS fasteners, steel 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 o...

3/4HP 230/460v TEFC 1/4" Learn More

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PumpBiz

WOBBLE STATOR PUMP & 3 phase MOTOR

APM-44CSFM-3

$3,821.55

Liberty Pumps are backed by over fifty years of progressive cavity pump product sales and technical service experience. American Pump Series Progressive Cavity Pumps are designed with a singular helical rotor that eccentrically turns within a dou...

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Graco Pumps

230v Electric APEX Oil Transfer pump

260104

$800.00

The PBL oil transfer pumps are designed specifically to transfer bulk oils and hydraulic fluids, motor oil, antifreeze. Larger horsepower electric motors with a smaller displacement gear pump assure adequate power to pump viscous fluids at low ...

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Oberdorfer Pumps

N994 Gear Pump Only

N994R-S15

$699.00

Gear Pump Only. No motor. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Gear Pump KIT. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long servi...

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Oberdorfer Pumps

N994 Gear Pump with motor

N994S15H-M95

$1,149.00

Gear Pump bronze with 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 service life.
Gear ...

3/4HP 230/460v Bronze / FKM Learn More

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Hypro Pumps

Hot Oil Gear Pump

NG7V

$2,168.60

NG NSF Listed Industrial Gear Pumps. OBSOLET

Gear pumps are recommended for non-abrasive, non-flammable liquids compatible with pump component materials. They can be used for liquid circulation, lubrication, pressure boosting, filtering, medium p...

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Jabsco Pumps

6050 Bronze Utility Pump Flexible Impeller

6050-0003

$1,367.00

Flexible Impeller pump for general transfer pumping using 115V AC power where self-priming, 23 gpm flow and debris tolerance are required. Oil-resistant nitrile impeller is standard. Do not pump gasoline or other flammable liquids. DO NOT RUN D...

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Jabsco Pumps

6050 Bronze Utility Pump Flexible Impeller

6050-0013

$1,376.88

Flexible Impeller pump for general transfer pumping using 115V AC power where self-priming, 23 gpm flow and debris tolerance are required. Oil-resistant nitrile impeller is standard. Do not pump gasoline or other flammable liquids. DO NOT RUN D...

115v 3/4HP TEFC Learn More

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