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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

    Bronze Rotary Gear Pump w/ relief valve & Motor

    N991RM-32F01

    $743.00
    Bronze Rotary Gear Pump. Includes electric motor. 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 se...
    115v 1/4" Learn More
  2. Oberdorfer Pumps

    Close Coupled Bronze Rotary Gear Pump w/ relief valve

    N991RN32-F08

    $881.00
    Bronze Rotary Gear Pump with electric motor. 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...
    Pump & 1/3HP Motor 115v 1/4" Learn More
  3. Hypro Pumps

    Bronze Gear pump

    GMBN4VA5

    $2,616.44
    Rotary Gear pump 3/8". 303 SS fasteners, Ryton gears.

    Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. Do not operate the relief valve for more than one minute.

    Use for pre...

    3/4" 1.5HP 115/230V ODP Learn More
  4. Oberdorfer Pumps

    N992R Gear Pump & EXP Motor

    N992RQ-F09

    $1,611.50
    Explosion Proof Gear Pump with housings and gears are made of top quality bronze; shafts are from stainless steel 303. Hazardous Duty gear pump fitted with EXP motor. Bearings are designed of high performance carbon-graphite material selected f...
    1/3HP 115v Explosion Proof Learn More
  5. Hypro Pumps

    Cast Iron Gear Pump 1/4"

    GCCN22V

    $807.73
    Cast Iron Gear pump close coupled to a 1/3 hp Carbonator type motor. Includes adjustable relief valve. For lubricating liquids, not water.
    115v/230v Learn More
  6. Hypro Pumps

    Cast Iron Gear pump 1/4"

    GMCV2VA3

    $1,530.98

    Rotary Cast Iron Gear pump end. 303 SS fasteners, steel gears.

    Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. Do not operate the relief valve for more than one minute.

    Hypr...

    3/4HP 115/230v ODP 1/4" Learn More
  7. Hypro Pumps

    Explosion Proof Cast Iron Gear pump

    GMCV4VAX4

    $2,541.23

    Explosion Proof Cast Iron Gear pump 1HP.

    303 SS fasteners, steel gears, FKM shaft seal.

    Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. Do not operate the relief valve for m...

    1HP 115/230v Exp 1/2" Learn More
  8. Hypro Pumps

    Cast Iron Gear pump 3/8

    GMCV3VA4

    $1,826.07

    Rotary Cast Iron Gear pump 3/8". 303 SS fasteners, steel gears.

    Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. Do not operate the relief valve for more than one minute.

    Use...

    1HP 3/8" Learn More
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