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

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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Hypro Pumps

Hot Oil Gear Pump Relief Valve

NG11V

$2,600.00

NG NSF Listed Industrial Gear Pumps. Obsolete

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 ...

Obs Learn More

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Hypro Pumps

Cast Iron Gear pump 1/4"

GMCV2VA3

$1,530.98

Rotary Cast Iron Gear pump end. 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 one minute.

Hypr...

3/4HP 115/230v ODP 1/4" Learn More

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