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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. T 49 Duplex Plunger 2.4hp Solid Shaft

    General Pump

    T 49 Duplex Plunger 2.4hp Solid Shaft

    T731B
    $795.40
    T Series 49, Duplex Plunger Pump, Solid Shaft - Duplex pulsing action for improved impacted cleaning, ideal for drain cleaning and jetting application. Forged brass manifold with an exclusive lifetime warranty.
    • Forged brass manifold with an excl...
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  2. Hypro MBN3VA Bronze Gear pump only

    Hypro Pumps

    Bronze Gear pump only

    MBN3VA
    $5,401.27
    Rotary Gear pump end. 303 SS fastners, Ryton gears.

    Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. Do not operate the relief valve for more than one minute.

    Use for pressure...

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  3. T 49 Duplex Plunger 2.5hp Solid Shaft

    General Pump

    T 49 Duplex Plunger 2.5hp Solid Shaft

    T731B 2.5hp
    $793.73
    T Series 49, Duplex Plunger Pump, Solid Shaft - Duplex pulsing action for improved impacted cleaning, ideal for drain cleaning and jetting application. Forged brass manifold with an exclusive lifetime warranty.
    • Forged brass manifold with an ...
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  4. Air Diaphragm Pump

    All-Flo Pumps

    Air Diaphragm Pump

    A050-NAA-TTYT-S00

    $1,171.50

    Air Diaphragm Pump

    Aluminum Air AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. S = Standard (Suction Right / Discharge Right)Click ...

    1/2" Alum/Teflon Learn More
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  5. T 49 Duplex Plunger 2.9hp Hollow Shaft

    General Pump

    T 49 Duplex Plunger 2.9hp Hollow Shaft

    T9731EBF
    $898.78
    T Series 49, Duplex Plunger Pump, Hollow Shaft, NEMA 56 C Flange for Direct Couple to Electric Motors - Duplex pump specifically designed for the demands of the water jetting industry. Forged brass manifold with an exclusive lifetime warranty.
    • S...
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  6. Air Diaphragm pump Aluminum

    All-Flo Pumps

    Air Diaphragm pump Aluminum

    A050-NAA-VVYV-S30
    $1,314.95

    Aluminum Diaphragm Air AODD Pump 1/2". 

    All-Flo pneumatic diaphragm pumps are used throughout industry, chemical, paints, solvents and paints. Standard (Suction Right / Discharge Right). Made in USA.

    Lube-free air valve, Non-stalling, No vent ho...

    1/2" FKM Learn More
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  7. Bronze Gear pump

    Hypro Pumps

    Bronze Gear pump

    GMBN4VA5
    $1,615.42

    Rotary Gear pump 3/8". 303 SS fasteners, Ryton gears.

    Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. Do not operate the relief valve for more than one minute.

    Use for press...

    3/4" 1.5HP 115/230V ODP Learn More
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  8. Ober_N9000R.gif

    Oberdorfer Pumps

    Bronze Pedestal Gear Pump w/ relief valve

    N1000R
    $401.70
    Bronze Pedestal Gear pump with relief valve. Often used as a coolant pump on welding torch. Pump flow is reversible.
    • Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffecte...
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  9. Bronze Gear pump 1HP

    Hypro Pumps

    Bronze Gear pump 1HP

    GMBN3VA43
    $1,483.72

    Rotary Gear pump 3/8". 303 SS fasteners, Ryton gears.

    Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. Do not operate the relief valve for more than one minute.

    Use for press...

    3/8" 3phase ODP Learn More
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  10. T 50 3plex Plunger 5.5hp

    General Pump

    T 50 3plex Plunger 5.5hp

    T9971
    $1,617.48
    T Series 50, Triplex Plunger Pump with Solid shaft--Forged brass manifold with an exclusive lifetime warranty. Flex coupling and bell housing available for direct drive. Solid ceramic plungers with continuously lubricated packings. Offered with o...
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