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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

    N994 12v DC Gear Pump

    N994H-H75

    $1,729.00
    12v DC 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.

    12 volt Gear ...

    1HP 12VDDC Learn More
  2. Oberdorfer Pumps

    N993 Pump & motor 12VDC

    N993Q-J75

    $1,776.00

    12VDC gear Pump 1/2HP.

    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.

    12 volt Gear pu...

    12VDC Learn More
  3. Oberdorfer Pumps

    Gear Pump & 12VDC Motor

    N992R-C81

    $1,618.10
    12V DC Gear Pump with relief valve. Housings and gears are made of top quality bronze; shafts are from stainless steel 303. Continuous Duty gear pump fitted with 12V DC motor. Bearings are designed of high performance carbon-graphite material s...
    1/3HP 12V DC Relief valve Learn More
  4. Remco

    12v Demand Spray Pump

    2240-1B1-10I

    $96.12

    12v Demand Spray Pump.

    1gpm 12v pump with On / Off switch. Economy Plus series. Far and away the best selling 12vdc pump in the industry. Choose from standard models or configure to meet the special needs of your OEM application. Replace Delevan ...

    12vdc On/Off switch 1gpm 40psi Learn More
  5. Remco

    12v Demand Spray Pump

    2240-1B1-10E

    $96.12

    12v Demand Spray Pump.

    Far and away the best selling 12vdc pump in the industry. Choose from standard models or configure to meet the special needs of your OEM application. Replace Delevan 2200 pumps on Snowex Trynex spreaders. Long-life (2000 ho...

    12vdc Learn More
  6. 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
  7. Oberdorfer Pumps

    3/4" Bronze gear pump 1HP

    N970RH-N75

    $2,689.00
    3/4" Bronze rotary gear pump with 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 per...
    12vdc Relief Valve Learn More
  8. Oberdorfer Pumps

    Gear Pump & 12VDC Motor

    N992Q-01F94

    $1,626.90
    12V DC Gear Pump with housings and gears are made of top quality bronze; shafts are from stainless steel 303. Continuous Duty gear pump fitted with 12V DC motor. Bearings are designed of high performance carbon-graphite material selected for we...
    1/3HP 12V DC REVERSIBLE Learn More
  9. Remco

    FatBoy Demand Diaphragm Pump

    5538-1E1-94A

    $397.15

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

    7GPM 60PSI 12VDC NPT Demand Learn More
  10. Remco

    115v Demand Pump 5.3GPM

    5537-1E1-58C

    $232.62

    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...

    5.3GPM 60PSI 120v NPT Learn More
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