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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. Jabsco Pumps

    Bronze pump Flexible Impeller Lip Seal

    777-0001

    $578.00
    Flexible impeller pump. Full cam. Neoprene for water and general purpose pumping. Nitrile impeller is ideal for oil based products. Reduce flow 50% for half cam operation. Use face seal to extend pump life. Do not pump gasoline or other flammable...
    Frame / Bearing pedestal mount Learn More
  2. General Pump

    MSS 3Plex Plunger GB 117.5hp

    MSS4015R

    $31,317.32
    MSS Series, Triplex Plunger Pump with Gear Box for Jetting (intermittent use).
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thread: 2 1/2" NPT-F
    • Discharge Port Thread: 1 1/4" NPT-F
    • Pump Dimensions: 27.7" x 23.8" x 11.9"
    • Shaft...
  3. Hypro Pumps

    Bronze gear pump

    GPBN2V

    $1,917.86

    5 GPM Bronze pedestal mounted gear pump. For oils and other lubricating liquids. Excellent for water based fluids. Ryton PPS spur gears provide quiet operation and chemical compatibility. No metal to metal contact.

    For smaller gear pumps see Ligh...

  4. General Pump

    MSS 3Plex Plunger GB 117.8hp

    MSS5018R

    $37,580.78
    MSS Series, Triplex Plunger Pump with Gear Box for Jetting (intermittent use).
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thread: 2 1/2" NPT-F
    • Discharge Port Thread: 1 1/4" NPT-F
    • Pump Dimensions: 27.7" x 23.8" x 11.9"
    • Shaft...
  5. General Pump

    MSS 3Plex Plunger GB 117.9hp

    MSS4518R

    $31,317.32
    MSS Series, Triplex Plunger Pump with Gear Box for Jetting (intermittent use).
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thread: 2 1/2" NPT-F
    • Discharge Port Thread: 1 1/4" NPT-F
    • Pump Dimensions: 27.7" x 23.8" x 11.9"
    • Shaft...
  6. Hypro Pumps

    Bronze gear pump 19 gpm

    BB5

    $2,671.12
    19 GPM Bronze pedestal mounted gear pump. For oils and other lubricating liquids. Shaft seal is a packing. Do not use pulley drive.
  7. General Pump

    MSS 3Plex Plunger GB 118.8hp

    MSS4018R

    $31,317.32
    MSS Series, Triplex Plunger Pump with Gear Box for Jetting (intermittent use).
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thread: 2 1/2" NPT-F
    • Discharge Port Thread: 1 1/4" NPT-F
    • Pump Dimensions: 27.7" x 23.8" x 11.9"
    • Shaft...
  8. Oberdorfer Pumps

    Bronze Pedestal Gear Pump

    N9000

    $1,132.30
    Bronze Pedestal Gear pump. Often used as a oil pump on large ships to pre-lube the bearings or honey production systems.
    • Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively una...
  9. General Pump

    MSS 3Plex Plunger GB 121.5hp

    MSS3615R

    $31,317.32
    MSS Series, Triplex Plunger Pump with Gear Box for Jetting (intermittent use).
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thread: 2 1/2" NPT-F
    • Discharge Port Thread: 1 1/4" NPT-F
    • Pump Dimensions: 27.7" x 23.8" x 11.9"
    • Shaft...
  10. General Pump

    MSS 3Plex Plunger GB 123.2hp

    MSS3618R

    $31,317.32
    MSS Series, Triplex Plunger Pump with Gear Box for Jetting (intermittent use).
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thread: 2 1/2" NPT-F
    • Discharge Port Thread: 1 1/4" NPT-F
    • Pump Dimensions: 27.7" x 23.8" x 11.9"
    • Shaft...
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