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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. Oberdorfer N992RMS5-F01 Bronze Gear Pump Mtr

    Oberdorfer Pumps

    Bronze Gear Pump & Mtr

    N992RMS5-F01
    $1,231.23
    Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life. Includes relief valve in pump head...
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  2. Oberdorfer N990RH-N26 Bronze Rotary Gear Pump w/ motor relief valve

    Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ motor & relief valve

    N990RH-N26
    $2,455.70
    Oberdorfer Close coupled bronze rotary gear pumps.
    • Bronze Construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • The pump drive shaft is connected to the motor shaft by ...
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  3. Oberdorfer N61K10G-01C33 Bronze Rotary Gear Pump Motor

    Oberdorfer Pumps

    Bronze Rotary Gear Pump & Motor

    N61K10G-01C33
    $716.30
    PUMP AND MOTOR, no relief valve.

    This Bronze Rotary Gear Pump is popular among OEM users like generator Onan. It is a diesel fuel transfer pump featuring an all bronze design and 303 stainless steel shafts with options of non-metallic gears and a...

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  4. Oberdorfer N61010GR-01F02 Bronze Rotary Gear Pump Motor R

    Oberdorfer Pumps

    Bronze Rotary Gear Pump & Motor R

    N61010GR-01F02
    $677.30
    PUMP AND MOTOR with relief valve.

    This Bronze Rotary Gear Pump is popular among OEM users. It is a diesel fuel transfer pump featuring an all bronze design and 303 stainless steel shafts with options of non-metallic gears and a variety of shaft s...

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  5. Oberdorfer N61K10G-01 Bronze Rotary Gear Pump End

    Oberdorfer Pumps

    Bronze Rotary Gear Pump End

    N61K10G-01
    $302.90
    PUMP END ONLY

    This Bronze Rotary Gear Pump is popular among OEM users. It is a diesel fuel transfer pump featuring an all bronze design and 303 stainless steel shaft.

    Special Features:

    • Bronze Body
    • Helical Gears for Quiet Operation
    • Self-...
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  6. Oberdorfer N92061GRC Bronze Rotary Gear Pump End

    Oberdorfer Pumps

    Bronze Rotary Gear Pump End

    N92061GRC
    $474.70
    PUMP END ONLY

    This Bronze Rotary Gear Pump is popular among OEM users. Gear Pump, RYT GRS, Carb mount. It is a diesel fuel transfer pump featuring an all bronze design and 303 stainless steel shaft.

    Special Features:

    • Bronze Body
    • Helical Ge...
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  7. Oberdorfer N990D1GOC Bronze Rotary Gear Pump PEO

    Oberdorfer Pumps

    Bronze Rotary Gear Pump PEO

    N990D1GOC
    $1,300.00
    Oberdorfer Close coupled bronze rotary gear pump end only. Contains Buna Mechanical Seal.
    • Bronze construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • Pump End On...
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  8. Oberdorfer N990S15 Bronze Rotary Gear Pump PEO

    Oberdorfer Pumps

    Bronze Rotary Gear Pump PEO

    N990S15
    $1,331.20
    Oberdorfer Close coupled bronze rotary gear pump end only.
    • Bronze Construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • Pump End Only (Motor Not Included)
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  9. Oberdorfer N99011GR Bronze Rotary Gear Pump PEO w/ ryton gears

    Oberdorfer Pumps

    Bronze Rotary Gear Pump PEO w/ ryton gears

    N99011GR
    $1,430.00
    Oberdorfer Close coupled ryton rotary gear pump end only.
    • Ryton gears with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • Pump End Only (Motor Not Included)
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  10. Oberdorfer N990J-T45 Bronze Rotary Gear Pump w/ motor

    Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ motor

    N990J-T45
    $2,999.10
    Oberdorfer Close coupled bronze rotary gear pumps.
    • Bronze Construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • The pump drive shaft is connected to the motor shaf...
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