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Gear Pumps

Gear pumps, or rotary gear pumps, are positive displacement (or fixed displacement), meaning they pump a constant amount of fluid for each revolution. They consist of at least two separate and rotating gears with inter-meshing teeth. As these meshed teeth separate, they create a partial vacuum which is filled by the fluid being pumped. As the gears then continue to rotate the fluid becomes trapped and is carried around the casing to the discharge side of the pump. Here as the gear teeth begin to re-mesh the fluid is ejected creating a pumping action. Gear pump brands Oberdorfer Hypro Shertech

Typical Applications for Gear Pumps

  • Petrochemicals: Pure or filled bitumen, pitch, diesel oil, crude oil, lube oil etc.
  • Chemicals: Sodium silicate, acids, plastics, mixed chemicals, isocyanates etc.
  • Paint and ink.
  • Resins and adhesives.
  • Pulp and paper: acid, soap, lye, black liquor, kaolin, lime, latex, sludge etc.
  • Food: Chocolate, cacao butter, fillers, sugar, vegetable fats and oils, molasses, animal food etc.
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  1. Oberdorfer Pumps

    N993 Pump & motor

    N993RM-J07

    $1,238.00
    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
  2. Oberdorfer Pumps

    Close Coupled Bronze Rotary Gear Pump w/ relief valve

    N991RM-J07

    $984.00
    Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Bearings are designed of high performance carbongraphite material selected for wear resistance and long service life. Gear pumps are positive displacement pum...
    1/2HP 115/230v Learn More
  3. Oberdorfer Pumps

    N994 Gear Pump & Motor

    N994H-J46

    $2,040.00
    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...

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

    Bronze gear pump

    N993Q-J46

    $1,749.00
    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 Learn More
  5. Oberdorfer Pumps

    N992 Pump & Mtr.

    N992S5Q-J97

    $1,138.50
    Bronze rotary gear pump with electric motor. 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 s...
    230/460v 1/2HP FKM Learn More
  6. Oberdorfer Pumps

    Close Coupled Bronze Rotary Gear Pump

    N999Q-J46

    $1,411.00

    Features N999 Series:

    • Compact design eases installation and use in limited space areas.
    • Construction is bronze and stainless steel wetted components.
    • Close tolerance design allows for consistent performance
    • Helical gears for quiet operatio...
  7. Oberdorfer Pumps

    Close Coupled Bronze Rotary Gear Pump

    N999Q-32-J46

    $987.00

    Features N999 Series:

    • Compact design eases installation and use in limited space areas.
    • Construction is bronze and stainless steel wetted components.
    • Close tolerance design allows for consistent performance
    • Helical gears for quiet operation.

    Pu...

  8. Hypro Pumps

    Bronze Gear pump 1/2 hp

    GCBN33V

    $1,379.39
    Bronze Gear pump close coupled to a 1/2 hp Carbonator type motor. Bronze spur gears with 304 stainless steel shaft and carbon/graphite shaft supports. Standard pressure relief valves that can be ported internally or externallyand adjusted.

    She...

    3/8" 115v Learn More
  9. Oberdorfer Pumps

    N993 Bronze Pump & Motor

    N993M-J07

    $1,146.00
    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
  10. Oberdorfer Pumps

    N992R Gear Pump & Mtr

    N992RM-J07

    $1,142.90
    Rotary bronze gear pump with electric motor. 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 s...
    1/2Hp 115/230v ODP Learn More
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