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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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  1. Hypro Pumps

    Cast Iron Gear pump

    GMCV6VC7

    $1,111.00
    Rotary Cast Iron Gear pump 1" 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 ...

    3HP 230v/1 ODP 1" Learn More
  2. Oberdorfer Pumps

    N991 Oberdorfer PUMP & MTR.

    N991-F41

    $1,446.90
    Glycol circulation Pump by Oberdorfer is just one of hundreds of applications. 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 selec...
    1/3HP 115 Learn More
  3. Pumptec

    Hard surface Pump motor set (hard scape pump)

    80346

    $1,411.42
    Pumptec 120 Volt pressure washer pump provides the best in pressure cleaning and pressure washing performance. The number one tile and grout pump. This electric pressure washer cleaner is one work horse in the pressure washing business and in pow...
  4. Hypro Pumps

    Cast Iron Gear pump

    GMCV5VA6

    $1,244.00
    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...

    2HP 115/230v ODP 3/4" Learn More
  5. Hypro Pumps

    316SS Gear pump

    GMSV4A4

    $1,735.68

    316SS Rotary Gear pump with 1HP motor. 303 SS fasteners, Ryton gears. Stainless steel gear pump for aggressive chemicals.

    Use for pressure spraying, circulation of lubricants, tank / drum filling. Will handle water like liquids to very thick. B...

    1/2" 1HP 115/230v Learn More
  6. Oberdorfer Pumps

    N991 Gear PUMP & motor reversible

    N991M-F07

    $1,285.70

    Reversible Gear PUMP & 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. Pump ...

    115v/230v Reversible 1/4" Learn More
  7. Hypro Pumps

    Cast Iron Gear pump 3/8

    GMCV3VA4

    $1,114.00

    Rotary Cast Iron Gear pump 3/8". 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.

    Use...

    1HP 3/8" Learn More
  8. Oberdorfer Pumps

    N991 Oberdorfer Bronze gear pump & motor

    N991-32F41

    $1,108.90
    Oberdorfer Bronze gear pump & motor. 3/8" 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 ser...
    115v 3/8" Learn More
  9. Graco Pumps

    230v Electric APEX Oil Transfer pump

    260104

    Call For Price

    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 ...

    230V - 4.25gpm. This pump has been discontinued. Please see the list of related products for a replacement Learn More
  10. Graco Pumps

    115v Electric APEX Oil Transfer pump

    260109 (TP32-15)

    $1,200.00

    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 ...

    115V- 7.9gpm This model is obsolete and is replaced with 25U346 Learn More
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