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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

    3/4" Bronze gear pump 1HP

    N970H-N75

    $2,659.00
    3/4" Bronze rotary gear pump without relief valve and close coupled to a 1 HP 12VDC 1725 RPM motor. Often used to pump Diesel fuel. Pump housings and gears are made of top quality bronze, shafts are stainless steel 303. Bearings are made of high ...
    12vdc Learn More
  2. Pumptec

    200PSI Spray Sytem 12V

    80326

    $477.86
    Spray Pump Module 200 PSI. Basic Sprayer Pump System easily converts spot sprayer to a high-performance 200 PSI sprayer for tree spraying, ditch and fence line spraying, plus eave/overhand spraying. 114T PumpTec Pump, Nylon Body, FKM O-rings, Tefl...
    12VDC spray system Nylon body Learn More
  3. Hypro Pumps

    Cast Iron Gear Pump 1/2"

    GCCN33V

    $940.81
    Cast Iron Gear pump close coupled to a 1/2 hp Carbonator type motor. Use with lubricating liquids only, not water based.
    115/230v 1/2HP Learn More
  4. Jabsco Pumps

    24V Bronze Vane Puppy Pump

    18680-0940

    $463.00
    The Jabsco Reversible Rotary Vane Pump is ideal for transferring diesel fuel. NO reversing switch, it is ideal for moving fuel.
    • Rotor: Vectra
    • Vanes: Ryton
    • Seal: Lip Type, Nitrile
    • 24V motor
    • Self-priming up to about 3 ft.
    • Duty cycle-30 minu...
  5. Pumptec

    Portable Toilet Service Sytem

    80729

    $1,335.00

    Series 356U - M60 Pump 12 Volt 0-700 PSI. Waterhorse 80729 PWK-713-12V.

    Includes unloader, gun, and inlet filter. Does NOT include hose. This electric pressure washer cleaner is one work horse in the pressure washing business and in power washing...

    12VDC pressure pump Learn More
  6. Hypro Pumps

    Cast Iron Gear Pump 1/4"

    GCCN22V

    $807.73
    Cast Iron Gear pump close coupled to a 1/3 hp Carbonator type motor. Includes adjustable relief valve. For lubricating liquids, not water.
    115v/230v Learn More
  7. Aquatec Pumps

    AquaJet RV Pump

    PVP55-Aquajet-ARV

    $326.00
    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 Accumulator ...
    High Flow Water Pump 12v Learn More
  8. Little Giant Pumps

    Flexible impeller pump PP-1S

    555110

    $224.54

    Non-Submersible, Self-Priming Stainless Steel Transfer Pump This lightweight, self-priming, portable pump with stainless steel pump head can be used to empty waterbeds, drain water heaters or aquariums, pump out a basement, transfer water to an...

    115v AC Learn More
  9. Aquatec Pumps

    Low flow misting pump kit

    8851-2P01-S424

    $219.00
    Veg. misting or Pre-Filter water treatment RO Booster pump. In / Outlets are 1/4" push-to-connect JG style for easy installation into R.O. water supply line. Kit includes 24vac to 115vac transformer with plug and 20-40 psi pressure switch for...
  10. Aquatec Pumps

    Low flow misting pump kit

    8851-2J03-B424

    $199.00
    Veg. misting or Pre-Filter water treatment RO Booster pump. In / Outlets are 1/4" push-to-connect JG style for easy installation into R.O. water supply line. Kit includes 24vac to 115vac transformer with plug and 20-40 psi pressure switch for use...
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