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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

    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
  2. 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
  3. Flojet Pumps

    Diaphragm pump

    G575208

    $198.00
    Air driven, pneumatic pump. Glass filled Polypropylene double diaphragm pump with Santoprene diaphragms and EPDM check valve seats. Springs are Hastalloy.

    Connections are 3/8" HB . Air connection is 1/4" PLASTIC.

  4. Flojet Pumps

    Duplex Diaphragm pump

    G575245

    $198.00
    Air driven, pneumatic pump. Glass filled Polypropylene double diaphragm pump with Santoprene diaphragms and EPDM check valve seats. Springs are Hastalloy.

    Connections are 1/2" 90 degree elbow. Air connection is 1/4" FNPT brass.

  5. Flojet Pumps

    Duplex Diaphragm pump

    G573185

    $221.00
    Glass filled Polypropylene double diaphragm pump with FKM diaphragms and check valve seats. Springs are Hastalloy.

    Connections are 3/8" MNPT" . Air connection is 1/4HB brass.

  6. 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
  7. Remco

    Demand/Bypass

    5517-1E1-58C

    $217.33

    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
  8. Remco

    115v Demand Pump 2.2GPM

    3313-1E1-52C

    $206.41

    115v Demand Pump 2.2GPM

    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....

    2.2GPM 60PSI 115AC Learn More
  9. Remco

    24v Demand Pump

    5536-1E1-731A

    $217.33
    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 24DC Learn More
  10. Riverside

    Diaphragm pump repair kit 3"

    03438

    $162.00

    Repair diaphragm for Riverside Homelite mud pump DP3. Diaphragm pumps are positive displacement pumps. They pump a specific volume for each pump cycle. Diaphragm pumps move fluids more slowly than centrifugal pumps, but can handle mud and larger a...

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