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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. PumpBiz

    WOBBLE STATOR PUMP & 3 phase MOTOR

    APM-44CSFM-3

    $4,394.78
    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...
  2. 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
  3. PumpBiz

    120v Electric Fuel Transfer

    927

    $784.00

    115-120v fuel transfer pump This model is manual, meaning no automatic nozzle. Positive displacement, self-priming vane pumps are designed for efficient gasoline, kerosene, and diesel fuel transfer. Flexible mounting options fit any tank design.

    ...
    120v Diesel Learn More
  4. 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
  5. PumpBiz

    Wobble Stator Pump

    AP-33CSQM

    $536.00

    Wobble stator pump for thick liquids. 

    The progressive cavity pump is a positive displacement system that is extremely flexible in its usability in a variety of specialized fields with difficult pumping applications such as viscous and highly-abr...

  6. Graco Pumps

    12v Electric Gas Transfer - Automatic 260001

    FP12-A

    $484.00
    12 volt fuel pump 260001. Blue Devil Automatic gas diesel Transfer Pumps. CSA US mark applies only to 12 VDC motors for Class I, Div I, Group D Hazardous Locations. Automatic nozzle turns off when done. gr260001 Often on Keystone toy hauler. Bi...
    12vdc Automatic Leaded / Diesel Learn More
  7. Hypro Pumps

    Bronze Gear pump PEO

    GCBN2V

    $899.00
    Bronze Gear pump for close coupling to a 1/3 hp Carbonator type motor.

    Includes relief valve. Pump end only. Replaces 6PA26

    1/4" no motor Learn More
  8. Graco Pumps

    12v Electric Oil Transfer 260116

    OP12

    $963.00

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

  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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