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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. Riverside

    Honda 5.5 hp diaphragm pump 2 in.

    DP2H

    $1,702.00

    Honda 5.5 hp diaphragm pump 2 in., gas engine

    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 adv...

    2" 5.5HP Learn More
  2. Riverside

    3 in. Honda diaphragm pump

    DP3H

    $1,999.00

    Diaphragm pumps are positive displacement pumps. They pump a specific volume for each pump cycle. Diaphragm pumps move fluids more slowly than centrifugal pumps, but can handle mud and larger amounts of solids including abrasive materials. They al...

    5.5 hp Honda engine Learn More
  3. General Pump

    TriPlex Plunger Pump 5.5hp

    TS1331

    $1,006.25
    T Series 47, Triplex Plunger Pump.
    • The preferred pump frame in the pressure cleaning industry
    • Forged brass manifold with an exclusive lifetime warranty
    • Large-capacity, die-cast, anodized aluminum oil-bath crankcase
    • Over-sized connecting rods for...
  4. General Pump

    TriPlex Plunger Pump 5.5hp

    TS1011

    $977.50
    T Series 47, Triplex Plunger Pump.
    • The preferred pump frame in the pressure cleaning industry
    • Forged brass manifold with an exclusive lifetime warranty
    • Large-capacity, die-cast, anodized aluminum oil-bath crankcase
    • Over-sized connecting rods for...
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