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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. Myers-Seth DD-4HAS Industrial Diaphragm pump Diesel Skid

    Myers-Seth

    Industrial Diaphragm pump Diesel Skid

    DD-4HAS
    $23,992.00
    Myers Seth Pumps we manufacture pumps that can handle more gallons per minute and a larger solid than any other 6 inch pump manufacturer on the market today. Our "Bread and Butter" are our High Volume pump line and our Double Diaphragm pumps, whi...
    Diesel Skid mounted Learn More
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  2. Riverside DP3KD 3 in. Kohler Diesel diaphragm pump

    Riverside

    3 in. Kohler Diesel diaphragm pump

    DP3KD
    $3,622.00

    Obsolete due to engine. Parts are still available.

    Diaphragm pumps are positive displacement pumps. They pump aspecific volume for each pump cycle. Diesel Diaphragm pumps move fluidsmore slowly than centrifugal pumps, but can handle mud and large...

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  3. All-Flo A200-CA3-GG3N-080 Stainless Steel Air Operated Double Diaphragm Pump

    All-Flo Pumps

    Stainless Steel Air Operated Double Diaphragm Pump

    A200-CA3-GG3N-B70
    $7,128.68

    316 Stainless Steel Diaphragm Pump 2"NPT. Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. 316SS 2" connections are dual FNPT and Flange (ANSI 150#/DI...

    Stainless, Geolast, Nitrile 2 inch Learn More
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  4. Industrial Diaphragm pump 4" Diesel

    Myers-Seth

    Industrial Diaphragm pump 4" Diesel

    DD-4HAT
    $23,992.00
    Myers Seth Pumps we manufacture pumps that can handle more gallons per minute and a larger solid than any other 6 inch pump manufacturer on the market today. Our "Bread and Butter" are our High Volume pump line and our Double Diaphragm pumps, w...
    Diesel Trailer Mount Learn More
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  5. amt_by_gorman-rupp_3_inch_self-priming_honda_diaphragm_pump_335h-96.jpg

    AMT Pumps

    3" Honda Driven Diaphragm Pump

    69-H533
    $2,688.13

    Honda GX160 gas engine 5.5HP. 3" Diaphragm pumps features 2-stage, 44 to 1 gear reduction with a large diameter output gear and heavy duty ball bearing construction. Often referred to as Mud pumps or Sludge pumps, diaphragm pumps are designed to p...

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  6. Riverside DP2B 2 BS 550 Diaphragm Pump

    Riverside

    2" B&S 550 Diaphragm Pump

    DP2B
    $1,442.00

    Riverside Pumps' rugged and reliable Diaphragm Pumps are sometimes called "mudhogs" for their ability to pump heavy mud and sludge, thicker than any centrifugal pump can handle. They also have the advantage of being able to run dry without damage,...

    3.5HP diaphragm pump Learn More
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  7. Tsurumi TD4-200 Diaphragm Trash pump

    Tsurumi

    Diaphragm Trash pump

    TD4-200
    $2,275.00
    Diaphragm mud trash pumps. Honda powered diaphragm trash pumps are designed to be reliable, easy to start, easy to prime, easy to maintain and are built to last. QUALITY 4-STROKE Honda GX ENGINES with OHV, and a transistorized pointless ignition ...
    Honda 4HP GX120 Learn More
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  8. All-Flo ST-15 Stainless Steel Air Operated Double Diaphragm Pump

    All-Flo Pumps

    Stainless Steel Air Operated Double Diaphragm Pump

    ST-15
    $3,486.62
    Stainless Steel 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 31...
    Teflon Dia. 1.5" Learn More
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  9. All-Flo C100-NPP-GGPN-G70 PP Air Operated Double Diaphragm Pump

    All-Flo Pumps

    PP Air Operated Double Diaphragm Pump

    C100-NPP-GGPN-G70
    $1,739.24
    PolyPro 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 from .25...
    NC-10 Learn More
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  10. Pulsafeeder 100-XA-AAAAXXX 100 GPD/60 PSI Metering Pump

    Pulsafeeder

    100 GPD/60 PSI Metering Pump

    100-XA-AAAAXXX
    $971.10
    100 GPD/60 PSI metering pump 115 vac. 70 strokes / minute max. 1.0 Amps full load.

    Dimensions: 6.75" x 8.875" x 7.25" (H x W x D)

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