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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. Close Coupled Bronze Rotary Gear Pump w/ relief valve

    Oberdorfer Pumps

    Close Coupled Bronze Rotary Gear Pump w/ relief valve

    N991RN32-F08
    $1,145.30
    Bronze Rotary Gear Pump with electric motor. Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Bearings are designed of high performance carbongraphite material selected for wear resistance and long service...
    Pump & 1/3HP Motor 115v 1/4" Learn More
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  2. Hypro B1 Bronze Pedestal Gear Pump

    Hypro Pumps

    Bronze Pedestal Gear Pump

    B1
    $1,939.52
    Bronze Pedestal Gear Pump, light duty with zerk grease fittings. Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applications, providing a n...
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  3. Hypro C2K Cast Iron Pedestal Gear Pump

    Hypro Pumps

    Cast Iron Pedestal Gear Pump

    C2K
    $1,364.15
    Cast Iron Pedestal Gear Pump, light duty with grease zerks that requires greasing.

    Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applicati...

    1/4" Kevlar packing Learn More
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  4. Hypro C1V Cast Iron Pedestal Gear Pump

    Hypro Pumps

    Cast Iron Pedestal Gear Pump

    C1V
    $1,253.63
    Cast Iron Pedestal Gear Pump, light duty NO grease zerks that requires greasing.

    Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial application...

    1/4" FKM Learn More
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  5. Hypro C5K Cast Iron Pedestal Gear Pump

    Hypro Pumps

    Cast Iron Pedestal Gear Pump

    C5K
    $1,493.69
    Cast Iron Pedestal Gear Pump, light duty with grease zerks that requires greasing.

    Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applicati...

    3/4" Cast Iron Learn More
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  6. Hypro C6K Cast Iron Pedestal Gear Pump

    Hypro Pumps

    Cast Iron Pedestal Gear Pump

    C6K
    $1,634.69
    Cast Iron Pedestal Gear Pump, light duty with grease zerks that requires greasing. NO relief valve.

    Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and ...

    1" Cast Iron Learn More
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  7. Hypro C6V Cast Iron Pedestal Gear Pump

    Hypro Pumps

    Cast Iron Pedestal Gear Pump

    C6V
    $1,821.38

    Cast Iron Pedestal Gear Pump 1"

    without relief valve.

    Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applications, providing a nearly puls...

    Frame mount 1" Learn More
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  8. Oberdorfer N999-spec Bronze Rotary Gear Pump EXP

    Oberdorfer Pumps

    Bronze Rotary Gear Pump EXP

    N999-spec
    $1,560.00
    1/2 gpm diesel oil pump with EXP motor.

    Features N999 Series:

    • Compact design eases installation and use in limited space areas.
    • Construction is bronze and stainless steel wetted components.
    • Close tolerance design allows for consistent perf...
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  9. Bronze oberdorfer ear Pump w/ relief valve

    Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ relief valve

    N991R-F41
    $1,056.90
    Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Bearings are designed of high performance carbongraphite material selected for wear resistance and long service life. Gear pumps are positive displacement p...
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  10. Oberdorfer Gear Pump w/ relief valve

    Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ relief valve

    N991R
    $596.70
    Rotary Gear Pump w/ relief valve ONLY, no motor. Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Bearings are designed of high performance carbon graphite material selected for wear resistance and long se...
    1/4" PEO Learn More
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