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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. All-Flo Pumps

    Diaphragm Pump Kynar

    C100-NPK-TTKT-G70

    $3,623.27
    Diaphragm Pump Kynar 1". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Replaces KN-10 All pumps carry a full 5 year manufacturers warranty. ...
    1" Kynar KN-10 Learn More
  2. General Pump

    T 69 Triplex Plunger 7.4hp

    T41

    $2,691.20
    T Series 69 Triplex Plunger Pump, Solid Shaft--The industry's choice for high-flow applications. Ball bearings and over sized connecting rods for maximum life.
    • Forged brass manifold with an exclusive lifetime warranty
    • Large Capacity Die-cast...
  3. General Pump

    T 69 Triplex Plunger 8.8hp

    TS1041

    $2,701.35
    T Series 69 Triplex Plunger Pump, Solid Shaft--The industry's choice for high-flow applications. Ball bearings and over sized connecting rods for maximum life.
    • Forged brass manifold with an exclusive lifetime warranty
    • Large Capacity Die-cast, an...
  4. General Pump

    T 76 Triplex Plunger 11.7hp

    T61

    $7,253.63
    T Series 76, Triplex Plunger Pump, Solid Shaft--Forged brass manifold with an exclusive lifetime warranty. The industry's choice for high flow applications, over sized connecting rods for maximum life.
    • Large-capacity, die-cast, anodized aluminum...
  5. All-Flo Pumps

    PVDF Air Operated Double Diaphragm Pump

    KN-5

    $1,971.59

    PVDF AODD Pump 1/2". All-Flo diaphragm pump has Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into. A050-SPK-TTKT-S70 Kynar pneumatic pump. All plastic air system are corrosion resistant. For pumping aggressive chemic...

    Kynar TFE 1/2" Learn More
  6. General Pump

    T 76 Triplex Plunger 20.9hp

    T1551

    $8,967.82

    T Series 76, Triplex Plunger Pump, Solid Shaft- Obsolete

    -Forged brass manifold with an exclusive lifetime warranty. The industry's choice for high flow applications, over sized connecting rods for maximum life.

    • Large-capacity, die-cast, anodi...
  7. All-Flo Pumps

    PVDF Air Operated Double Diaphragm Pump

    KN-5E

    $1,759.44

    PVDF air operated double diaphragm pump. AODD Pump 1/2". All-Flo Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon,...

    Kyner EPDM Santoprene Learn More
  8. General Pump

    T 76 Triplex Plunger 26.3hp

    T4251

    $10,935.47
    T Series 76, Triplex Plunger Pump, Solid Shaft--Forged brass manifold with an exclusive lifetime warranty. The industry's choice for high flow applications, over sized connecting rods for maximum life.
    • Large-capacity, die-cast, anodized aluminum...
  9. All-Flo Pumps

    PVDF Air Operated Double Diaphragm Pump

    KN-10V

    $3,902.76
    PVDF AODD Pump 1". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS from .25” t...
  10. General Pump

    T 77 Sixplex Plunger 24hp

    T121

    $11,308.99
    T Series 77 Sixplex Plunger Pump--Forged brass manifold with an exclusive lifetime warranty. Dual manifolds utilizing a common crankcase for efficient performance in high flow applications.
    • High flow applications
    • Dual manifolds utilizing a commo...
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