My Cart

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.
View as List Grid

Items 381-390 of 853

Set Descending Direction
per page
  1. Oberdorfer Pumps

    18 GPM CI GEAR PUMP & PED

    18GB1111S

    $1,593.80
    Medium duty CI gear pump with relief valve and pedistal for long coupling. Mechanical sealed, bronze bearings. CW rotation.

    b>Features:

    1. Shafts: Ground and polished steel.
    2. Helical Gears: For quiet running.
    3. Housing: Of close grain cast iron. Three...
  2. General Pump

    HDN 3Plex Plunger 39.3hp

    HDN18

    $21,929.29
    HDN Series, Triplex Plunger Pump with 316 SS Manifold and Wetted Parts; 431 SS Valve Plate and Seat**Max. Inlet Pressure: 45 PSI**Max. Fluid Temperature: 140FPump Dimensions: 20.4" x 17.7" x 8.1"

    Click here to view more information on this pump

  3. 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
  4. Aquatec Pumps

    Spray pump

    5502-IDN2-V77D

    $405.88
    5502-1DN2-V77D Spray Pump. Variable speed, constant pressure pumps. These pumps integrate a state-of-the-art digital controller. This unique intelligent controller makes the spray pump able to maintain a constant pressure (within 2 PSI) for var...
    Variable speed 115v Learn More
  5. General Pump

    HDN 3Plex Plunger 39.8hp

    HDN20

    $21,929.29
    HDN Series, Triplex Plunger Pump with 316 SS Manifold and Wetted Parts; 431 SS Valve Plate and Seat**Max. Inlet Pressure: 45 PSI**Max. Fluid Temperature: 140FPump Dimensions: 20.4" x 17.7" x 8.1"

    Click here to view more information on this pump

  6. Aquatec Pumps

    Variable speed constant PSI 115v

    5501-IEN2-V77D

    $405.88

    Variable speed, constant pressure pumps. These pumps integrate a state-of-the-art digital controller. This unique intelegant controller makes the pumps able to maintain a constant pressure (within 2 PSI) for variable flow rates throughout their op...

  7. Aquatec Pumps

    Variable speed constant PSI 115v

    5501-2D01-V578

    $467.20
    Variable speed, constant pressure pumps. 3 min time out if no water present. These pumps integrate a state-of-the-art digital controller. This unique intelegant controller makes the pumps able to maintain a constant pressure (within 2 PSI) for ...
  8. 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)

  9. General Pump

    HDS 3plex plunger pump

    HF22A

    $14,479.70
    HDS Triplex Plunger pump. A heavy-duty industrial pump with a nickel-treated, spheroidal cast iron manifold for Jetting (intermittent use).
    • Max. Inlet Pressure: 45PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thread: 1" BSP-F
    • Discharge Port Thread: 3...
  10. General Pump

    Jetter Pump KLS 3Plex Plunger

    KF36A

    $15,036.50
    KF Triplex Plunger Pump for Jetting. A heavy-duty industrial pump with a nickel-treated, spheroidal cast iron manifold. Rated for intermittent use.
    • Three horizontal plungers
    • Vertically-arranged valves
    • Double V-shaped pressure packings lubri...
    Right hand drive Learn More
View as List Grid

Items 381-390 of 853

Set Descending Direction
per page