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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. Graco FP24-M 24v Electric Fuel Transfer

    Graco Pumps

    24v Electric Fuel Transfer

    FP24-M
    $428.00
    24v Electric Fuel Transfer pump kit, includes 260079 Regular gas / diesel Manual nozzle.

    Features:

    • Manufacturer recognized and designed for Methanol
    • Positive displacement, self priming gear pump design
    • Built in relief valve and strainer
    • Speci...
    260020 Learn More
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  2. Oberdorfer N993R N993 bronze Gear pump

    Oberdorfer Pumps

    N993 bronze Gear pump

    N993R
    $1,019.20
    Pump Only PEO, no 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 pu...

    Pump Only PEO Relief Learn More
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  3. 24vDC gear pump and motor oberdorfer bronze

    Oberdorfer Pumps

    N992R Gear Pump & Mtr

    N992R-C82
    $2,103.53
    24vDC gear pump and 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. Inclu...
    1/4HP 24vDC Learn More
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  4. Oberdorfer N991R-32 N991 Bronze gear pump PEO

    Oberdorfer Pumps

    N991 Bronze gear pump PEO

    N991R-32
    $596.70

    Bronze gear pump

    NO motor. 1/4" Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Include relief valve built in. Bearings are designed of high performance carbon-graphite material selected for wear resis...

    Pump End ONLY Learn More
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  5. Oberdorfer N992 N992 Gear Pump PEO

    Oberdorfer Pumps

    N992 Gear Pump PEO

    N992
    $825.57

    Gear Pump pump end only, 1/4". 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. Incl...

    3/8" Bronze Pump Only Learn More
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  6. Oberdorfer N13HDM 1.5 Bronze gear pump

    Oberdorfer Pumps

    1.5" Bronze gear pump

    N13HDM
    $3,200.00
    1.5" Bronze rotary gear pump without relief valve. Pedestal mount pump only. Upper drive shaft location. See performance graph for flow rates vs motor RPM and HP. If used above 900 RPM, then duty cycle is limited to intermittent.
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  7. Serfilco APM-56CSQM-3 WOBBLE STATOR PUMP 3 phase MOTOR

    PumpBiz

    WOBBLE STATOR PUMP & 3 phase MOTOR

    APM-56CSQM-3
    $4,706.56
    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 d...
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  8. Fill-Rite FR701V AC Utility Rotary Vane Pump

    Fill-Rite

    AC Utility Rotary Vane Pump

    FR701V
    $649.00

    This rugged, positive displacement, Heavy Duty pump is UL listed. Explosion proof UL listed 1/3 HP motor (115 VAC-60Hz) with sealed bearings, Heavy Duty switch, thermal overload protection and junction box. Carbon vanes and ceramic/carbon seals re...

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  9. Little Giant 555110 Flexible impeller pump PP-1S

    Little Giant Pumps

    Flexible impeller pump PP-1S

    555110
    $324.54

    Non-Submersible, Self-Priming Stainless Steel Transfer Pump This lightweight, self-priming, portable pump with stainless steel pump head can be used to empty waterbeds, drain water heaters or aquariums, pump out a basement, transfer water to an...

    115v AC Learn More
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  10. Oberdorfer N1100XN46 1.25 Bronze gear pump

    Oberdorfer Pumps

    1.25" Bronze gear pump

    N1100XN46
    $4,751.50
    1 1/4" Bronze rotary gear pump with relief valve and close coupled to a 1 HP ODP motor.

    Use to pump oil and other viscous thick liquids.

    1HP 115/230v ODP Learn More
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