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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. Oberdorfer Pumps

    Bronze Rotary Gear Pump 1"

    N990H-T47

    $6,037.63

    1" Close coupled bronze rotary gear pump with motor. 1.5HP

    • Bronze Construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • The pump drive shaft is connected to the mo...
    1-1/2HP 115/230v 1" Learn More
  2. Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ motor & relief valve

    N990RH-M46

    $2,748.20
    Oberdorfer Close coupled bronze rotary gear pumps.
    • Bronze Construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • The pump drive shaft is connected to the motor shaf...
  3. Oberdorfer Pumps

    3/4" Bronze gear pump 3/4HP

    N970H-M46

    $1,597.70
    3/4" Bronze rotary gear pump with relief valve and close coupled to a 3/4 HP 115v/1/60 1150 RPM TEFC motor. Shaft speed and flow are directly proportional. Motor HP needs to increase with a increase in pump pressure. The nature of a positive disp...
  4. Oberdorfer Pumps

    Bronze Rotary Gear Pump & Motor

    N61K10G-01F02

    $721.50
    PUMP AND MOTOR. No relief valve.

    This Bronze Rotary Gear Pump is popular among OEM users. It is a diesel fuel transfer pump featuring an all bronze design and 303 stainless steel shafts with options of non-metallic gears and a variety of sha...

  5. Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ motor

    N990H-N26

    $2,276.30
    Oberdorfer Close coupled bronze rotary gear pumps.
    • Bronze Construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • The pump drive shaft is connected to the motor shaft by ...
  6. Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ motor

    N990J-T47

    $3,624.13

    Oberdorfer Close coupled bronze rotary gear pumps.

    • Bronze Construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • The pump drive shaft is connected to the motor shaf...
    1-1/2HP 115/230v 1" Learn More
  7. 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
  8. 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
  9. 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
  10. 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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