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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. Remco

    115v Demand Pump 5.3GPM

    5537-1E1-58C

    $332.00

    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 p...

    5.3GPM 60PSI 120v NPT Learn More
  2. Remco

    Demand/Bypass

    5517-1E1-58C

    $339.00

    115v AC electric diaphragm pump. PROFLO 5500 OVERVIEW Engineered to withstand the most rigorous and punishing duty cycles, the ProFlo 5500 Series Pump is a top-line performer. We make this claim because we use the highest quality American Made pum...

    5.3/gpm 60psi 115v Learn More
  3. Remco

    FatBoy Demand Diaphragm Pump

    5518-1E1-94A

    $474.99

    THE PROFLO FATBOY PUMPS UP THE VOLUME WITH 7GPM 12vdc. Demanding industrial pump environments require precise engineering and quality components. ProFlo FatBoy was designed with both. To maximize the potential of all five diaphragm chambers, Remco...

    7GPM 60PSI 12VDC QC Learn More
  4. Hypro Pumps

    12V DC Cast Iron Gear pump

    GMCV4VA-12

    $1,253.00

    12 volt 12v DC Rotary Cast Iron Gear pump. 303 SS fasteners, steel gears. Battery powered self priming heavy duty gear pump.

    Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. D...

    12vdc 1HP Learn More
  5. Aquatec Pumps

    Hi-Flo Dem Pump

    5503-1E12-J526

    $289.08
    4.9 GPM 60PSI Demand delivery pump. OPERATION: The 550 pumps can draw water from a holding tank and pressurizeit, or boost the pressure from a low pressure source. It is designed to operate intermittently, but most versions can run continuously f...
    5GPM 60PSI 115v Learn More
  6. Remco

    Street Sweeper Pump 60PSI Bi-pass

    5538-2E1-94A

    $426.00

    Street Sweeper pump.

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

    7GPM 60PSI 12VDC Learn More
  7. Pumptec

    High pressure pump

    80022

    $461.54
    High pressure low volume electric pump. Pump has 2 sets of inlets and outlets.

    POPULAR MODEL IN CARPET CLEANING INDUSTRY FOR 200PSI EXTRACTORS. With '02 nozzle flow is .71GPM.205V-095M5380547

  8. Remco

    AquaJet RV Pump

    55Aquajet-ARV

    $483.00

    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 Accumulat...

    High Flow Water Pump 12v 318GPH Learn More
  9. Remco

    12vdc Bypass Pump 4GPM

    5516-2E6-63A

    $214.92

    New Model Number to Review: 5536-2E1-63B

    12v diaphragm pump with by-pass. Quick Connect QD ports accept various size fittings. Industrial pump environments require precise engineering and quality components - the demand pump was designed with bot...

    4GPM 60PSI 12VDC Buna QD Bypass Learn More
  10. Riverside

    Electric diaphragm pump 2 in.

    DP2H-1

    $1,596.00

    Electric diaphragm pump 2 in.

    Riverside Pumps' rugged and reliable Diaphragm Pumps are sometimes called "mudhogs" for their ability to pump heavy mud and sludge, thicker than any centrifugal pump can handle. They also have the advantage of being ...

    2" Electric Learn More
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