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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. Aquatec 5503-1FE1-J526 5 chamber diaphragm pump

    Aquatec Pumps

    5 chamber diaphragm pump

    5503-1FE1-J526
    $289.08
    550 Series Super Flow Pump: Reverse Osmosis System Pump, High Powered RO/DI Reverse Osmosis Pump

    OPERATION: The 550 pumps can draw water from a holding tank and pressurize it, or boost the pressure from a low pressure source. It is designed to...

    5GPM 70PSI 115v Learn More
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  2. Aquatec 5852-1F12-B423 24v Elect. diaphragm pump

    Aquatec Pumps

    24v Elect. diaphragm pump

    5852-1F12-B423
    $281.78
    580 Series Super Flow Pump: These pumps are specifically designed for mobile low flow or low voltage applications such as RO water systems, pesticides and fertilizers. 24 VAC. Pressure switch set at 70 PSI. Connections are 3/8 " John Guest fittin...
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  3. Jabsco 23920-9313 Run dry 24vdc

    Jabsco Pumps

    Run dry 24vdc

    23920-9323
    $615.00
    Jabsco pump. For general purpose pumping where self-priming and extended run dry capability are required. Liquid stored in the specially designed pumphead provides 10 minutes or more of run dry operation after liquid supply tank is empty. Heavy...
    23920-9 Learn More
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  4. Run dry 24vdc Washdown

    Jabsco Pumps

    Run dry 24vdc Washdown

    32605-0094
    $238.00
    This 4.0 GPM (15 LPM) Washdown Pump provides the boater of small to medium vessels with a cost conscious and size maximised higher pressure pump. With a sealed pump head and motor, this new model provides the same ease of installation as all Jabsc...
    Marine Washdown Learn More
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  5. Jabsco 23920-9423 Run dry 12VDC Pump

    Jabsco Pumps

    Run dry 12VDC Pump

    23920-9423
    $517.30
    Jabsco pump 8gpm. For general purpose pumping where self-priming and extended run dry capability are required. Liquid stored in the specially designed pumphead provides 10 minutes or more of run dry operation after liquid supply tank is empty. He...
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  6. Aquatec_550 pump

    Aquatec Pumps

    24VDC diaphragm pump

    5510-1A12-B726
    $290.54
    24VDC DDP550 Series Super Flow Pump: Reverse Osmosis System Pump, High Powered RO / DI Reverse Osmosis Pump. Coolant pump on Do-All CNC saws.

    OPERATION: The 550 pumps can draw water from a holding tank and pressurize it, or boost the pressure f...

    24VDC Learn More
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  7. Aquatec 5513-1E12-J526 5 chamber diaphragm pump

    Aquatec Pumps

    5 chamber diaphragm pump

    5513-1E12-J526
    $290.54
    550 Series Super Flow Pump: Reverse Osmosis System Pump, High Powered RO / DI Reverse Osmosis 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 t...

    115v 5GPM 60psi Learn More
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  8. Aquatec 5513-1E12-J606 5 chamber diaphragm pump

    Aquatec Pumps

    5 chamber diaphragm pump

    5513-1E12-J606
    $290.54

    550 Series Super Flow Pump: Reverse Osmosis System Pump, High Powered RO / DI Reverse Osmosis 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 o...

    115v 6GPM 60psi Learn More
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  9. Aquatec 5501-2D01-N526 5 chamber diaphragm pump

    Aquatec Pumps

    5 chamber diaphragm pump

    5501-2D01-N526
    $290.54
    550 Series Super Flow Pump: Great for water, paints, wine, soap and other liquids.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 intermitte...
    3GPM 50PSI 115v Learn More
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  10. Aquatec 5512-1F02-J526 Demand diaphragm pump

    Aquatec Pumps

    Demand diaphragm pump

    5512-1F02-J526
    $290.54
    550 Series Super Flow Pump: Water system, wash down, watering. Reverse Osmosis System Pump, High Powered RO / DI Reverse Osmosis Pump

    OPERATION: The 550 pumps can draw water from a holding tank and pressurizeit, or boost the pressure from a ...

    4gpm or 70psi Learn More
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