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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 N991R-32 N991 Bronze gear pump PEO

    Oberdorfer Pumps

    N991 Bronze gear pump PEO

    N991R-32
    $596.70

    Bronze gear pump

    NO motor. 1/4" Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Include relief valve built in. Bearings are designed of high performance carbon-graphite material selected for wear resis...

    Pump End ONLY Learn More
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  2. Remco_Fatboy.jpg

    Remco

    12v Demand Pump

    5536-1E1-82B
    $214.92
    Demanding industrial pump environments require precise engineering and quality components葉he 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 th...
    4GPM 60PSI 12DC Learn More
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  3. General Pump KEZ24A KE 3plex Plunger 24.9hp

    General Pump

    KE 3plex Plunger 24.9hp

    KEZ24A
    $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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  4. Oberdorfer N992 N992 Gear Pump PEO

    Oberdorfer Pumps

    N992 Gear Pump PEO

    N992
    $825.57

    Gear Pump pump end only, 1/4". 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. Incl...

    3/8" Bronze Pump Only Learn More
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  5. Remco 5538-1I1-94A FatBoy Demand Pump

    Remco

    FatBoy Demand Pump

    5538-1I1-94A
    $379.00

    THE PROFLO FATBOY® PUMPS UP THE VOLUME WITH 7GPM 100psi. Demanding industrial pump environments require precise engineering and quality componentsè. The ProFlo FatBoy® was designed with both. To maximize the potential of all five diaphragm chamber...

    7GPM 100PSI 12VDC Demand NPT Learn More
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  6. Remco 54REBEL-JRV RV Pump
    Sale

    Remco

    Power RV Pump

    54REBEL-JRV
    35% Off Special Price $211.00 Regular Price $326.54

    Power RV water pump, 4GPM flow. 12 volt DUAL control RV water pump. Controls Pressure by bypass internally and therefore is nearly silent operation / no cycling. • Self-priming / Runs Dry • No Accumulator Tank Needed. Removable port adapters. ...

    Freshwater pump 4.0GPM, 60psi,12v Learn More
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  7. EKZ 3plex plunger 10.3hp

    General Pump

    EKZ 3plex plunger 10.3hp

    EKZ30
    $15,949.64
    EKZ Series, Triplex Plunger Pump with 316 SS Manifold and Wetted Parts, including 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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  8. Oberdorfer N13HDM 1.5 Bronze gear pump

    Oberdorfer Pumps

    1.5" Bronze gear pump

    N13HDM
    $3,200.00
    1.5" Bronze rotary gear pump without relief valve. Pedestal mount pump only. Upper drive shaft location. See performance graph for flow rates vs motor RPM and HP. If used above 900 RPM, then duty cycle is limited to intermittent.
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  9. Serfilco APM-56CSQM-3 WOBBLE STATOR PUMP 3 phase MOTOR

    PumpBiz

    WOBBLE STATOR PUMP & 3 phase MOTOR

    APM-56CSQM-3
    $4,706.56
    Liberty Pumps are backed by over fifty years of progressive cavity pump product sales and technical service experience. American Pump Series Progressive Cavity Pumps are designed with a singular helical rotor that eccentrically turns within a d...
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  10. Remco 55Aquajet-AES AquaJet RV Pump

    Remco

    AquaJet RV Pump

    55Aquajet-AES
    20% Off Special Price $386.40 Regular Price $483.00
    AquaJet RV water pump, 3.4GPM 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 Accumulato...
    Low Flow Water Pump 12v 3GPM Learn More
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