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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. Graymills Pumps

    Vertical CI Centrifugal Pump & Mtr

    SG4E 1/2

    $1,121.05
    The SG series are gear pumps specially designed for high pressure applications. These pumps are recommended for use with liquids that have some lubricating qualities and are relatively free of abrasives and scale. These pumps mount vertically and...
  2. General Pump

    MH Triplex GB 150.5hp

    MH6515R

    $33,228.27
    A heavy-duty industrial pump with a nickel-treated, spheroidal cast iron manifold and gearbox. Gearbox may be positioned as shown or at 45ï½°, 90ï½°, 135ï½° or 180ï½° from position shown.
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inl...
  3. Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ relief valve

    N991RM-F07

    $1,202.50
    Bronze gear pump with motor. Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Includes relief valve. Bearings are designed of high performance carbongraphite material selected for wear resistance and long se...
    115/230v 1/3HP Learn More
  4. Graymills Pumps

    Vertical CI Centrifugal Pump & Mtr

    SG1B 1/25

    $750.21
    The SG series are gear pumps specially designed for high pressure applications. These pumps are recommended for use with liquids that have some lubricating qualities and are relatively free of abrasives and scale. These pumps mount vertically and...
  5. General Pump

    MH Triplex GB 150.7hp

    MH5018R

    $33,228.27
    A heavy-duty industrial pump with a nickel-treated, spheroidal cast iron manifold and gearbox. Gearbox may be positioned as shown or at 45ï½°, 90ï½°, 135ï½° or 180ï½° from position shown.
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inl...
  6. Graymills Pumps

    Vertical CI Centrifugal Pump & Mtr

    SG2B 1/8

    $886.03
    The SG series are gear pumps specially designed for high pressure applications. These pumps are recommended for use with liquids that have some lubricating qualities and are relatively free of abrasives and scale. These pumps mount vertically and...
  7. General Pump

    MH Triplex GB 152.3hp

    MH5015R

    $33,228.27
    MH Series, Triplex Plunger pump with Gear Box**Max. Inlet Pressure: 45 PSI**Max. Fluid Temperature: 140FPump Dimensions: 33.3" x 28.2" x 13.5"
  8. Graymills Pumps

    Vertical CI Centrifugal Pump & Mtr

    SG1A 1/25

    $640.80
    The SG series are gear pumps specially designed for high pressure applications. These pumps are recommended for use with liquids that have some lubricating qualities and are relatively free of abrasives and scale. These pumps mount vertically and...
  9. Hypro Pumps

    Bronze Gear pump 1/2 hp

    GCBN33V

    Call For Price
    Bronze Gear pump close coupled to a 1/2 hp Carbonator type motor. Bronze spur gears with 304 stainless steel shaft and carbon/graphite shaft supports. Standard pressure relief valves that can be ported internally or externallyand adjusted.

    She...

    3/8" 115v This Pump is no longer available. Please call us for possible alternatives Learn More
  10. General Pump

    MH Triplex GB 152.5hp

    MH5515R

    $3,213.27
    A heavy-duty industrial pump with a nickel-treated, spheroidal cast iron manifold and gearbox. Gearbox may be positioned as shown or at 45ï½°, 90ï½°, 135ï½° or 180ï½° from position shown.
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½...
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