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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

    T 63 Triplex Plunger 6.2HP Hollow Shaft

    TX1508G6

    $875.44
    TX Series 63, Triplex Plunger Pump.
    • Flanged for direct couple to gasoline engines (SAE J609)
    • Set screw for key way
    • Oversized bearings and dual sight glasses
    • Large, light weight connecting rods
    • Longer life low and high pressure seals
    • Forged brass...
  2. 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
  3. General Pump

    EKZ 3plex plunger 5.8hp

    EKZ20

    $15,949.64
    EKZ Series, Triplex Plunger Pump with 316 SS Manifold and Wetted Parts, including Valve Plate and Seat**Max. Inlet Pressure: 45 PSI**Max. Fluid Temperature: 140FPump Dimensions: 18.2" x 17.5" x 7.3"

    Click here to view more information on this pu...

  4. 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
  5. General Pump

    EZ 44 3plex 6.2hp Hollow Shaft

    EZ2536E

    $1,094.75
    EZ 44 E Triplex Plunger Pump with Hollow Shaft, Flanged for Direct Couple to Electric Motors (NEMA-184TC) - Forged brass manifold with an exclusive lifetime warranty.
    • Ideal for all pressure cleaning and washing applications
    • Solid ceramic plu...
    3.6gpm 6hp 2500psi Learn More
  6. General Pump

    EZ 44 3plex 6.2hp Solid Shaft

    EZ2536S

    $1,045.45
    EZ 44 S Triplex Plunger Pump with Solid Shaft - Forged brass manifold with an exclusive lifetime warranty.
    • Solid ceramic plunger design
    • Flex coupling and bell housing available for direct drive
    • Die-cast, anodized aluminum, oil-bath crankcase
    • Pre...
  7. General Pump

    EZ 44 3plex 6.3hp Hollow Shaft

    EZ2536EUI

    $1,245.55
    EZ 44 E Triplex Plunger Pump with Hollow Shaft, Flanged for Direct Couple to Electric Motors (NEMA-184TC) - Forged brass manifold with an exclusive lifetime warranty. This pump includes Unloader and Downstream Injector.
    • Ideal for all pressure cl...
  8. General Pump

    TriPlex Plunger Pump 5.8hp

    T921

    $1,459.06
    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...
  9. General Pump

    TriPlex Plunger Pump 5.9hp

    TS921

    $1,749.06
    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...
  10. General Pump

    TriPlex Plunger Pump 6.1hp

    T1011

    $1,459.06
    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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