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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 - N992R-01C81: Gear Pump

    Oberdorfer Pumps

    Gear Pump & 1/4HP Motor

    N992R-01C81
    $2,119.26

    Bronze Gear Pump with housings and gears are made of top quality bronze; shafts are from stainless steel 303. Continuous Duty gear pump fitted with 115/230v 1/4hp motor. Bearings are designed of high performance carbon-graphite material selected f...

    1/4HP 115/230V ODP Learn More
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  2. Oberdorfer N992r-c81 Gear Pump & 12VDC Motor

    Oberdorfer Pumps

    Gear Pump & 12VDC Motor

    N992R-C81
    $2,103.53
    12V DC Gear Pump with relief valve. Housings and gears are made of top quality bronze; shafts are from stainless steel 303. Continuous Duty gear pump fitted with 12V DC motor. Bearings are designed of high performance carbon-graphite material s...
    1/3HP 12V DC Relief valve Learn More
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  3. Remco - 2240-1B1-101

    Remco

    12v Demand Spray Pump

    2240-1B1-10I
    $96.12

    12v Demand Spray Pump.

    1gpm 12v pump with On / Off switch. Economy Plus series. Far and away the best selling 12vdc pump in the industry. Choose from standard models or configure to meet the special needs of your OEM application. Replace Delevan ...

    12vdc On/Off switch 1gpm 40psi Learn More
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  4. G70C EXPLOSION PROOF BEVERAGE ALCOHOL PUMP g70C202A

    Flojet Pumps

    Explosion Proof beverage alcohol pump for high proof spirits

    G70C202A
    $926.00

    Flojet G70C202A Explosion-Proof Alcohol Pump


    Reliable, High-Performance Pump for High-Proof Beverages

    The Flojet G70C202A Little Explosion-Proof Alcohol Pump is specifically designed for high-proof beverage alcohol and other low flashpoint flamm...

    G70C ATEX Kalrez® Air Operated Diaphragm Pump for alcohol and high proof spirits Learn More
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  5. marco mate gear pump 12v up14

    Marco Mate

    Oil Transfer Pump UP14/Oil

    M164-520-12
    $489.00

    Oil transfer gear pump, 12V DC.4.0 GPM Self-priming electric pump with helical bronze gears for transferring lubricating oils and viscous liquids. Nickel-plated brass body and stainless steel shaft. Particularly suitable for draining engine sumps ...

    4gpm 290GPH 12v Learn More
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  6. oberdorfer gear pump bronze 1/2

    Oberdorfer Pumps

    N994 12v DC Gear Pump

    N994H-H75
    $2,247.70
    12v DC 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.

    12 volt Gear ...

    1HP 12VDDC Learn More
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  7. bronze gear pump with motor n992

    Oberdorfer Pumps

    N992 Pump & Mtr.

    N992-F41
    $1,453.40
    Bronze 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. Motor may not ...
    1/3HP 115v Learn More
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  8. Oberdorfer N993M-J07 N993 Bronze Pump Motor

    Oberdorfer Pumps

    N993 Bronze Pump & Motor

    N993M-J07
    $1,489.80
    Bronze 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 ar...

    1/2 HP 115v Learn More
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  9. Flojet-G57-diaphragm-pump-PumpBiz.jpg

    Flojet Pumps

    Duplex Diaphragm pump

    G573205A
    $345.00
    Glass filled Polypropylene double diaphragm pump with FKM diaphragms and check valve seats. Springs are Hastalloy.

    Connections are 3/8" straight. Air connection is 1/4" BARB brass. Air operated diaphragm pumps used for cleaning chemicals an...

    3/8" FKM Learn More
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  10. Oberdorfer N993RM-J07 N993 Pump motor

    Oberdorfer Pumps

    N993 Pump & motor

    N993RM-J07
    $1,609.40
    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 positive displac...

    1/2HP 115/230v Relief Vavle Learn More
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