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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. allflo_61zbq1r7sql._sl1000_.jpg

    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 ...

    Aluminum 1/2" Learn More
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  2. All-Flo 651017 Stainless Steel Air Operated Double Diaphragm Pump

    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
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  3. All-Flo - A150-NAA-TTYT-B30: Aluminum Air Operated Diaphragm Pump

    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
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  4. Air Operated Double Diaphragm Pump Bolted Series KE-05

    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
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  5. allflo_a050-spp-sspe-s70_5.jpg

    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
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  6. Kynar Air Double Diaphragm Pump Bolted Series

    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...
    Kynar FKM 1/2" Learn More
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  7. Conductive Nylon AODD Bolted Model

    All-Flo Pumps

    Conductive Nylon AODD Bolted Model

    A050-SPY-TT3T-SF0
    $1,485.00
    Although the air powered pump eliminates ignition from electrical motors and internal combustion engines when pumping flammable fluids there is still the possibility of static electrical charge build up on the outside of the pump. All-flo now p...
    Teflon diaphragm 1/2" Learn More
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  8. Conductive Nylon AODD Bolted Model

    All-Flo Pumps

    Conductive Nylon AODD Bolted Model

    A050-SPY-GN3N-SF0
    $1,412.40
    Although the air powered pump eliminates ignition from electrical motors and internal combustion engines when pumping flammable fluids there is still the possibility of static electrical charge build up on the outside of the pump. All-flo now p...
    Learn More
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  9. Conductive Nylon AODD Bolted Model

    All-Flo Pumps

    Conductive Nylon AODD Bolted Model

    A050-SPY-VV3V-SF0
    $1,582.65
    Although the air powered pump eliminates ignition from electrical motors and internal combustion engines when pumping flammable fluids there is still the possibility of static electrical charge build up on the outside of the pump. All-flo now p...
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  10. Flojet-G57-diaphragm-pump-PumpBiz2.jpg

    Flojet Pumps

    Diaphragm pump

    G575208
    $214.51
    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.

    Learn More
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