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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

    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...

  2. Aquatec Pumps

    Low flow booster pump kit

    6840-2J03-A331

    $290.54
    Pre-Filter water treatment RO Booster pump. In / Outlets are 1/4" push-to-connect JG style for easy installation into R.O. water supply line. Kit includes 12vdc to 115vac transformer with plug and 20-40 psi pressure switch for use with storage ta...
  3. Oberdorfer Pumps

    1.25" Bronze gear pump

    N1100XN46

    $4,751.50
    1 1/4" Bronze rotary gear pump with relief valve and close coupled to a 1 HP ODP motor.

    Use to pump oil and other viscous thick liquids.

    1HP 115/230v ODP Learn More
  4. Stenner

    Dual head Adjustable rate 100GPD

    100DMHP5

    $695.00
    G.H. Stenner & Company offers a complete line of highly reliable peristalic chemical feeders. Use for grease trap enzymes, algaecide, biocide, biocidal, antimicrobial, chlorination - chlorine sanitizers and disinfectants injection, cooling towers...
  5. General Pump

    EKZ 3plex plunger 7.1hp

    EKZ22

    $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...

  6. Riverside

    3 in. Kohler Diesel diaphragm pump

    DP3KD

    $3,622.00

    Obsolete due to engine. Parts are still available.

    Diaphragm pumps are positive displacement pumps. They pump aspecific volume for each pump cycle. Diesel Diaphragm pumps move fluidsmore slowly than centrifugal pumps, but can handle mud and large...

  7. Stenner

    Dual Head Dual Control 70GPD

    170MDC4

    $601.00
    G.H. Stenner & Company offers a complete line of highly reliable peristalic chemical feeders. Use for grease trap enzymes, algaecide, biocide, biocidal, antimicrobial, chlorination - chlorine sanitizers and disinfectants injection, cooling towers...
  8. General Pump

    EKZ 3plex plunger 9.2hp

    EKZ25

    $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...

  9. Aquatec Pumps

    Low flow misting pump kit

    8851-2P01-S424

    $319.74
    Veg. misting or Pre-Filter water treatment RO Booster pump. In / Outlets are 1/4" push-to-connect JG style for easy installation into R.O. water supply line. Kit includes 24vac to 115vac transformer with plug and 20-40 psi pressure switch for...
  10. General Pump

    EZ 44 3plex 10.8hp Hollow Shaft

    EZ3035G

    $1,148.91
    EZ 44 G Triplex Plunger Pump with Hollow Shaft, Flanged for Direct Couple to Gasoline Engines (SAE J609B) - Forged brass manifold with an exclusive lifetime warranty. Flanged for mounting on up to 13 horsepower engines.
    • Solid ceramic plunger des...
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