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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 N994J-T45 N994 Gear Pump & Mtr.

    Oberdorfer Pumps

    N994 Gear Pump & Mtr.

    N994J-T45
    $2,350.40
    Gear Pump. 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.

    Gear pumps are posit...

    1-1/2Hp 115/230v Learn More
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  2. Oberdorfer 10GB1111S 10 GPM CI GEAR PUMP PED

    Oberdorfer Pumps

    10 GPM CI GEAR PUMP & PED

    10GB1111S
    $1,316.90
    Medium duty CI gear pump with relief valve and pedistal for long coupling. Mechanical sealed, bronze bearings. CW rotation.

    b>Features:

    1. Shafts: Ground and polished steel.
    2. Helical Gears: For quiet running.
    3. Housing: Of close grain cast iron. Three...
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  3. oberdorfer gear pump bronze

    Oberdorfer Pumps

    N994 Gear Pump & Motor

    N994H-J46
    $2,652.00

    Gear Pump, Oberdorfer.

    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.

    Gear pumps...

    1/2HP 115/230v 1/2" Learn More
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  4. oberdorfer gear pump bronze N994RH-N26

    Oberdorfer Pumps

    N994 Gear Pump & Motor w/Relief Valve

    N994RH-N26
    $3,432.00

    Gear Pump, Oberdorfer.

    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.

    Gear pumps...

    1HP 115/230v 1/2" Learn More
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  5. ober_n994mtr.jpg

    Oberdorfer Pumps

    N994 Gear Pump & Mtr.

    N994R-N75
    $1,848.60
    Gear Pump. 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.

    Gear pumps are posit...

    12VDC Learn More
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  6. Oberdorfer N994-37 N994 Gear Pump w/brkt

    Oberdorfer Pumps

    N994 Gear Pump w/brkt

    N994-37
    $1,717.30
    Gear Pump. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Gear Pump KIT. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

    Gea...

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  7. Oberdorfer 18GB1111S 18 GPM CI GEAR PUMP PED

    Oberdorfer Pumps

    18 GPM CI GEAR PUMP & PED

    18GB1111S
    $1,593.80
    Medium duty CI gear pump with relief valve and pedistal for long coupling. Mechanical sealed, bronze bearings. CW rotation.

    b>Features:

    1. Shafts: Ground and polished steel.
    2. Helical Gears: For quiet running.
    3. Housing: Of close grain cast iron. Three...
    Learn More
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  8. Jabsco 6050-0003 6050 Bronze Utility Pump Flexible Impeller

    Jabsco Pumps

    6050 Bronze Utility Pump Flexible Impeller

    6050-0003
    $1,369.00
    Flexible Impeller pump for general transfer pumping using 115V AC power where self-priming, 23 gpm flow and debris tolerance are required. Oil-resistant nitrile impeller is standard. Do not pump gasoline or other flammable liquids. DO NOT RUN D...
    115v 3/4HP ODP Learn More
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  9. Jabsco 6050-0013 6050 Bronze Utility Pump Flexible Impeller

    Jabsco Pumps

    6050 Bronze Utility Pump Flexible Impeller

    6050-0013
    $1,376.88
    Flexible Impeller pump for general transfer pumping using 115V AC power where self-priming, 23 gpm flow and debris tolerance are required. Oil-resistant nitrile impeller is standard. Do not pump gasoline or other flammable liquids. DO NOT RUN D...
    115v 3/4HP TEFC Learn More
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  10. stainless steel gear pump with electric motor

    Hypro Pumps

    316SS Gear pump

    GMSV4A53
    $2,048.36

    316SS Rotary Gear pump. Ryton gears. Stainless steel gear pump for aggressive chemicals.

    Use for pressure spraying, circulation of lubricants, tank / drum filling. Will handle water like liquids to very thick. Bi-rotational allows for flow direct...

    3/4HP 230/460v , 1/2" Learn More
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