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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. Riverside_DP3h diaphragm pump

    Riverside

    3 in. Honda diaphragm pump

    DP3H
    $2,130.00

    Diaphragm pumps are positive displacement pumps. They pump a specific volume for each pump cycle. Diaphragm pumps move fluids more slowly than centrifugal pumps, but can handle mud and larger amounts of solids including abrasive materials. They al...

    5.5 hp Honda engine Learn More
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  2. General Pump KEZ20A KE 3plex Plunger 23.6hp

    General Pump

    KE 3plex Plunger 23.6hp

    KEZ20A
    $11,256.35
    EKN Series, Triplex Plunger Pump with 316SS Manifold and Wetted Parts; 431 SS Valve Plate and Seat**Max. Inlet Pressure: 45 PSI**Max. Fluid Temperature: 140FPump Dimensions: 18.2" x 17.5" x 7.3" Click here to view more information on this pu...
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  3. Oberdorfer N993C-M26 Bronze gear pump

    Oberdorfer Pumps

    Bronze gear pump

    N993C-M26
    $1,298.70
    Bronze gear pump. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

    Gear pumps are p...

    3/4HP 115/230v Learn More
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  4. Remco 5538-1i1-63A 100PSI Bypass

    Remco

    100PSI Bypass

    5538-1i1-63A
    $306.88

    NEW MODEL NUMBERS TO REVIEW: 5518-2I1-94A or 5538-2I1-94A

    THE PROFLO FATBOY® PUMPS UP THE VOLUME WITH 5.3gpm. Demanding industrial pump environments require precise engineering and quality components the ProFlo FatBoy® was designed with both. T...

    5.3/gpm 100psi 12VDC Learn More
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  5. General Pump KE28HA KE 3plex Plunger 24.0hp

    General Pump

    KE 3plex Plunger 24.0hp

    KE28HA
    $7,500.85
    EKN Series, Triplex Plunger Pump with 316SS Manifold and Wetted Parts; 431 SS Valve Plate and Seat**Max. Inlet Pressure: 45 PSI**Max. Fluid Temperature: 140FPump Dimensions: 18.2" x 17.5" x 7.3"
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  6. Oberdorfer N993R N993 bronze Gear pump

    Oberdorfer Pumps

    N993 bronze Gear pump

    N993R
    $1,019.20
    Pump Only PEO, no motor.Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

    Gear pu...

    Pump Only PEO Relief Learn More
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  7. Pulsafeeder 068-XA-AAAAXXX 68 GPD/60 PSI Metering Pump

    Pulsafeeder

    68 GPD/60 PSI Metering Pump

    068-XA-AAAAXXX
    $693.00
    68 GPD / 257.38 LPD 100 PSI metering pump 115 vac. 51 strokes / minute max. 1.0 Amps full load.

    Dimensions: 6.75" x 8.875" x 7.25" (H x W x D)

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  8. Aquatec PVP55-Aquajet-ARV AquaJet RV Pump

    Aquatec Pumps

    AquaJet RV Pump

    PVP55-Aquajet-ARV
    Call For Price
    AquaJet RV water pump, high flow. 12 volt Variable speed RV water pump.Controls Pressure by Changing Motor Speed and therefore is nearly silent operation / no cycling. • Speeds Up As Demand Increases • Self-priming / Runs Dry • No Accumulator ...
    High Flow Water Pump 12v This Pump has been discontinued and is no longer available. See the related pumps section or give us a call for an alternative. Learn More
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  9. Remco_demand pump

    Remco

    115v Demand Pump 2GPM

    3323-1E1-52C
    $206.41

    Demanding industrial pump environments require precise engineering and quality components. The demand pump was designed with both. Demand pumps operate as a positive displacement pump which has a pressure switch built in. When flow is open the pum...

    2.2 GPM Demand 60 PSI Viton Santoprene 3/8″ FNPT 110/120 VAC Learn More
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  10. Remco - 3323-1E1-82B: 12v Demand Pump 2GPM

    Remco

    12v Demand Pump 2GPM

    3323-1E1-82B
    $196.58

    Demanding industrial pump environments require precise engineering and quality components the demand pump was designed with both. Demand pumps operated as a positive displacement pump which has a pressure switch built in. When flow is open the pum...

    2.2 GPM Demand 60 PSI Viton Santoprene 3/8″ FNPT 12 VDC Learn More
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