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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. Bronze Rotary Gear Pump w/ relief valve & Motor

    Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ relief valve & Motor

    N991RM-32F01
    $965.90
    Bronze Rotary Gear Pump. Includes 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 se...
    115v 1/4" Learn More
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  2. Hypro BB1 Bronze Pedestal Gear Pump

    Hypro Pumps

    Bronze Pedestal Gear Pump

    BB1
    $2,141.48

    Bronze Pedestal Gear Pump, light duty. 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 pulseless flow and ar...

    bb Learn More
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  3. 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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  4. 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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  5. Metering Pump 50-1000cc/min

    March Pumps

    Metering Pump 50-1000cc/min

    212
    15% Off Special Price $569.91 Regular Price $670.48
    Positive displacement chemical feed pumps designed for precision metering & accurate dispensing. Recommended for intermittent duty only. Flow rates can be precisely regulated while the pump is running by adjusting the flow control lever and loc...
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  6. March 210-10 Metering Pump 5-350cc/min

    March Pumps

    Metering Pump 5-350cc/min

    210-10
    15% Off Special Price $546.98 Regular Price $643.50
    March positive displacement chemical feed pumps aredesigned for precision metering and accurate dispensing. 5 to 350 cc/min adjustable flow rates.They are recommended for intermittent duty only.

    Flow rates can be precisely regulated while the ...

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  7. 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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  8. 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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  9. 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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  10. allflo_a050-spp-sspe-s70_1.jpg

    All-Flo Pumps

    PP Air Operated Double Diaphragm Pump

    A050-SPP-TTPT-S70
    $1,234.50
    PolyPro / Teflon Air AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. For handling large size solids order the Max-pass valve under...
    PolyPro / Teflon 1/2" Learn More
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