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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. General Pump

    VH 3Plex Plunger 35.8hp

    VH14

    $20,950.47
    A heavy-duty, high pressure industrial pump with a stainless steel manifold.
    • For more information on this pump see the performance graph(to the right under the picture)
  2. All-Flo Pumps

    PP Air Operated Double Diaphragm Pump

    C050-SPP-VVPV-G70

    $1,274.55
    PolyPro 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. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS from ....
    PolyPro FKM 1/2" Learn More
  3. All-Flo Pumps

    PP Air Diaphragm pump 1/2"

    C050-SPP-TTPT-G70

    $1,161.74

    PolyPro AODD Pump 1/2". Double diaphragm or air operated diaphragm pump. Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Model available in PP Click ...

  4. General Pump

    Plunger Pump

    TSP1821

    $3,351.68
    Plunger Pump, High Pressure - Forged brass manifold with an exclusive lifetime warranty. Innovative seal design to extend seal life. New valve cap design improves hydrostatic performance.
    • Max. Inlet Pressure: 125 PSI
    • Min. Inlet Pressure: 30 PSI
    • ...
  5. General Pump

    T 49 Duplex Plunger 1.8hp Hollow Shaft

    T9711EBF

    $898.78
    T Series 49, Duplex Plunger Pump, Hollow Shaft, NEMA 56 C Flange for Direct Couple to Electric Motors - Duplex pump specifically designed for the demands of the water jetting industry. Forged brass manifold with an exclusive lifetime warranty.
    • S...
  6. General Pump

    Triplex Plunger High Flow

    TSF2421

    $4,709.60
    Triplex Plunger Pump, High Flow - Forged brass manifold with an exclusive lifetime warranty. Innovative seal design to extend seal life. New valve cap design improves hydrostatic performance.
    • Max. Inlet Pressure: 125 PSI
    • Min. Inlet Vacuum: 9 ft....
  7. General Pump

    Triplex Plunger pump

    TSP1819

    $3,073.20
    Triplex Plunger Pump, High Pressure - Forged brass manifold with an exclusive lifetime warranty. Innovative seal design to extend seal life. New valve cap design improves hydrostatic performance.
    • Max. Inlet Pressure: 125 PSI
    • Min. Inlet Pressure:...
  8. Pulsafeeder

    METERING PUMP 20GPD/250 PSI

    LPF4MA-PTC1

    $1,756.17
    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...
  9. General Pump

    Triplex Plunger High Pressure pump

    TSP1621

    $3,183.26
    Triplex Plunger Pump, High Pressure - Forged brass manifold with an exclusive lifetime warranty. Innovative seal design to extend seal life. New valve cap design improves hydrostatic performance.
    • Max. Inlet Pressure: 125 PSI
    • Min. Inlet Pressure:...
  10. Pulsafeeder

    METERING PUMP 42GPD/150 PSI

    LPG4MA-PTC1

    $1,841.67
    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...
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