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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 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
  2. General Pump

    LHZ 3Plex Plunger 83.0hp

    LHZ6017

    $86,534.91
    LHZ Triplex Plunger Pump with Internal Gear Reduction. A heavy-duty industrial pump with a 316 stainless steel manifold for desalination and other corrosive applications.
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½° F
    • Inlet Port Thread: ...
  3. Hypro Pumps

    Hot Oil Gear Pump Relief Valve

    NG11V

    $4,320.00

    NG NSF Listed Industrial Gear Pumps. Obsolete

    Gear pumps are recommended for non-abrasive, non-flammable liquids compatible with pump component materials. They can be used for liquid circulation, lubrication, pressure boosting, filtering, medium ...

  4. Barmesa Pumps

    2" Grinder pump 2HP

    BGP200DS

    Call For Price

    Rugged and reliable BGP Series pumps provide continuous, maintenance-free operation while effectively handling objects such as plastic, rubber, disposable diapers, towels and clothing. High Head.

    2HP Series Ideally suited for pressure sewer s...

    This product has been discontinued. It has been replaced by BGP202DS Learn More
  5. Jabsco Pumps

    Flex. Imp. Face Seal

    777-9003

    $590.00
    Flexible impeller pump. Full cam. Neoprene for water and general purpose pumping. Nitrile impeller is ideal for oil based products. Reduce flow 50% for half cam operation. Use face seal to extend pump life. Do not pump gasoline or other flammable...
  6. General Pump

    MH Triplex GB 147.5hp

    MH4518R

    $33,228.27
    A heavy-duty industrial pump with a nickel-treated, spheroidal cast iron manifold and gearbox. Gearbox may be positioned as shown or at 45ï½°, 90ï½°, 135ï½° or 180ï½° from position shown.
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inl...
  7. Barnes Pumps

    111608 Grinder pump

    SGV3022L

    $9,784.06

    Rugged and reliable SGV Series pumps provide continuous, maintenance-free operation while effectively handling objects such as plastic, rubber, disposable diapers, towels and clothing. High Head.

    3HP SGV Series Ideally suited for pressure s...

    3HP 230v/1 Learn More
  8. Jabsco Pumps

    Flex. Imp. Face Seal

    777-9051

    $618.00
    Flexible impeller pump. Half cam pump reduces flow 50% from curve chart. Neoprene for water and general purpose pumping. Nitrile impeller is ideal for oil based products. Reduce flow 50% for half cam operation. Use face seal to extend pump life. ...
  9. General Pump

    MH Triplex GB 148.5hp

    MH6518R

    $33,228.27
    MH Series, Triplex Plunger pump with Gear Box**Max. Inlet Pressure: 45 PSI**Max. Fluid Temperature: 140FPump Dimensions: 33.3" x 28.2" x 13.5"
  10. Jabsco Pumps

    Flexible Impeller pump

    777-0003

    $578.00
    Flexible impeller pump. Full cam. Neoprene for water and general purpose pumping. Nitrile impeller is ideal for oil based products. Reduce flow 50% for half cam operation. Use face seal to extend pump life. Do not pump gasoline or other flammab...
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