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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. Hypro Pumps

    Cast Iron Gear pump 1/4"

    GMCV2VA3

    $1,230.00

    Rotary Cast Iron Gear pump end. 303 SS fasteners, steel 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.

    Hypr...

    3/4HP 115/230v ODP 1/4" Learn More
  2. Oberdorfer Pumps

    Chemical Gear pump PEO

    S2101BCJ-C1

    $3,021.88
    Highly Engineered Chemical Helical Gear pump designed to handle highly corrosive liquids that must be pumped under pressure. Pump End Only with close coupled mtr adapter. Its rugged, three-section, thru-bolt construction provides ease of servicin...
  3. Hypro Pumps

    Cast Iron Gear pump PEO

    GMCV3VA

    $899.00

    Rotary Cast Iron Gear pump end. 303 SS fasteners, steel 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 ...

    No motor 3/8" Learn More
  4. General Pump

    Triplex Plunger 4.7hp

    TC1809E175

    $898.78
    TC Series 60, Triplex plunger pump, hollow shaft, flanged for direct couple to electric motors (NEMA-56C). Forged brass manifold with an exclusive lifetime warranty. Ideal for all general cleaning and misting applications.
    • Die cast, anodized...
  5. General Pump

    Triplex Plunger High Flow

    TSF2019

    $3,242.71
    Triplex Plunger Pump, High Flow - Forged brass manifold with an exclusive lifetime warranty. Innovative seal design to extend seal life. New valve cap design improves hydrostatic performance.
    • Max. Inlet Pressure: 125 PSI
    • Min. Inlet Vacuum: 9 ft....
  6. Hypro Pumps

    Cast Iron Gear pump only

    MCN3A

    $5,071.99
    Rotary Cast Iron 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...

  7. General Pump

    Triplex Plunger High Flow

    TSF2021

    $3,301.65
    Triplex Plunger Pump, High Flow - Forged brass manifold with an exclusive lifetime warranty. Innovative seal design to extend seal life. New valve cap design improves hydrostatic performance.
    • Max. Inlet Pressure: 125 PSI
    • Min. Inlet Vacuum: 9 ft....
    8GPM 3600PSI Learn More
  8. General Pump

    Triplex Plunger High Flow

    TSF2219

    $3,892.79
    Triplex Plunger Pump, High Flow - Forged brass manifold with an exclusive lifetime warranty. Innovative seal design to extend seal life. New valve cap design improves hydrostatic performance.
    • Max. Inlet Pressure: 125 PSI
    • Min. Inlet Vacuum: 9 ft....
  9. Hypro Pumps

    CI gear pump 11 gpm

    C4V

    $1,493.69
    11 GPM Cast iron pedestal mounted gear pump. For oils and other lubricating liquids. Not for use on water. Vellumoid Gasket Material, FKM Lip Seal
  10. General Pump

    Triplex Plunger High Flow

    TSF2221

    $3,892.79
    Triplex Plunger Pump, High Flow - Forged brass manifold with an exclusive lifetime warranty. Innovative seal design to extend seal life. New valve cap design improves hydrostatic performance.
    • Max. Inlet Pressure: 125 PSI
    • Min. Inlet Vacuum: 9 ft....
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