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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. Pulsafeeder

    METERING PUMP 12GPD/100 PSI

    LPA3MA-PTC1

    $1,176.48
    The Series E Plus offers the option to choose between4-20mAfor external pace inputs for automatic control.
    • 20 flow/pressure envelops
    • 100:1 turn down ratio
    • Optional 4-20mA with stop function
    • Optional External Pacing with stop function
    • Auto-off-Ma...
  2. All-Flo Pumps

    PP Air Operated Double Diaphragm Pump

    C150-FPP-GGPN-B70

    $3,890.97
    PolyPro AODD Pump 1 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS from...
  3. All-Flo Pumps

    PP Air Operated Double Diaphragm Pump

    A050-SPP-SSPE-S70

    $966.42
    PolyPro Air AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Click here to Learn How to Size your Diaphragm Pump and for a Mater...
  4. All-Flo Pumps

    Aluminum Air Operated Double Diaphragm Pump

    AB-15

    $1,531.20
    Diaphragm pump. Aluminum AODD Pump 1 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Geolast is a nitrile and polypropylene blend. When checki...
  5. All-Flo Pumps

    Air Operated Double Diaphragm Pump Bolted Series

    A050-NAA-GGPN-S00

    $1,171.50

    Diaphragm Pump, Aluminum Air AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Click here to Learn How to Size your Diaphragm Pump and ...

  6. All-Flo Pumps

    Stainless Steel Air Operated Double Diaphragm Pump

    651017

    $3,021.57

    Stainless Steel AODD Pump 1". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS fro...

    1" Husky D74GGG Learn More
  7. All-Flo Pumps

    Aluminum Air Operated Diaphragm Pump

    A150-NAA-TTYT-B30

    $3,119.85
    Aluminum AODD Pump 1 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. 3/4" npt air supply. Models available in PP, PVDF, Nylon, Conductive Ny...
    Teflon Diaphragm Learn More
  8. All-Flo Pumps

    Air Operated Double Diaphragm Pump Bolted Series KE-05

    A050-SPK-SSKE-S70

    $1,791.42

    Air AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Replaces  KE-05

    FOR SOFTWASHING, ROOF CLEANING THE ALL-FLO 1/2" KYNAR AIR DIAPHR...

    Kynar 1/2" Learn More
  9. All-Flo Pumps

    Air Operated Kynar Diaphragm Pump

    A050-SPK-TTKT-S70

    $1,973.27
    Air AODD Kynar PVDF Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Replaces kt-05, kn-5 Commercial applications include roof / house c...
    Kynar Teflon 1/2" Learn More
  10. All-Flo Pumps

    Kynar Air Double Diaphragm Pump Bolted Series

    A050-SPK-VVKV-S70

    $2,067.56
    Air AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Replaces KV-05 Click here to Learn How to Size your Diaphragm Pump and for a...
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