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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 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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  2. 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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  3. 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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  4. 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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  5. 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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  6. 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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