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Rotary Pumps - Gear, Flexible Impeller, Screw

These pumps have a set of rotating gears, flexible impellers, screw rotor or vanes connected to a driven shaft. Therefore most of these pumps incorporate a mechanical seal, packing or lip seal along the shaft at its back end in order to keep the fluid from leaking along the shaft. There are a few models, which are magnetically coupled and thus seal-less. Another type which is seal-less is the Peristaltic which uses a rotating roller assembly to compress a hose over a given arc length. These pumps are very reliable in pumping medium to thick liquids which typically are not handled by Centrifugal pumps and in applications where medium to high discharge pressures are needed at low flow rates. Varying the motor speed easily controls their output. Most units include some sort of built in relief valve, but those that do not must have one installed into the piping to prevent a dangerous over pressure condition. Not recommended for liquids with fine abrasives or thin non-lubricating liquids like water that will accelerate pump wear.Typical Positive Displacement Rotary pumps include helical gear, spur gear, lobe, progressive cavity, peristaltic, flexible impeller and sliding vane to name a few.
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  1. graco_fp12 gtp12 fuel gas diesel pump

    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
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  2. graco_fp1 fuel pump 115v

    Graco Pumps

    115v Electric Fuel Transfer

    FP115A
    $499.00
    Graco Fuel Transfer Pumps GTP have an efficient motor and gear design that allows for high output and with minimal current draw. They can easily be mounted on any tank design, on either side of the truck. 260026 has regular / leaded gas nozzle ...
    Automatic 260026 Leaded Fuel Pump Learn More
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  3. PumpBiz APM-44CSFM-3 WOBBLE STATOR PUMP 3 phase MOTOR

    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...
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  4. 12v Electric Fuel Transfer - Automatic 260001

    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
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  5. Graco OP12 12v Electric Oil Transfer 260116

    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...

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  6. PBL_Oil.jpg

    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
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  7. Graco 260109 (TP32-15) 115v Electric APEX Oil Transfer pump

    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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  8. graco_260106.jpg

    Graco Pumps

    115v Electric APEX Oil Transfer pump

    260108 (TP16-15)
    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 ...

    115V- 4.2gpm Learn More
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  9. Graco 260106 (TP9-15) 115v Electric APEX Oil Transfer pump

    Graco Pumps

    115v Electric APEX Oil Transfer pump

    260106 (TP9-15)
    $628.00

    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- 3gpm Learn More
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  10. Graco 260105 (TP8-15) 115v Electric APEX Oil Transfer pump wall mount unit

    Graco Pumps

    115v Electric APEX Oil Transfer pump wall mount unit

    260105 (TP8-15)
    $633.00

    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- 3gpm Learn More
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