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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

    N994 Gear Pump & Mtr.

    N994J-T45

    $1,808.00
    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...

    1-1/2Hp 115/230v Learn More
  2. Hypro Pumps

    Cast Iron Gear pump

    GMCV5VA6

    $2,255.39
    Rotary Cast Iron Gear pump with electric motor. 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...

    2HP 115/230v ODP 3/4" Learn More
  3. Hypro Pumps

    316SS Gear pump

    GMSV4A4

    $2,956.66

    316SS Rotary Gear pump with 1HP motor. 303 SS fasteners, 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. B...

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

    Bronze Rotary Gear Pump 1"

    N990H-T47

    $2,068.00

    1" Close coupled bronze rotary gear pump with motor. 1.5HP

    • 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 mo...
    1-1/2HP 115/230v 1" Learn More
  5. Oberdorfer Pumps

    Bronze Rotary Gear Pump EXP

    N999S5-EXP

    $1,595.00
    1/2 gpm pump with EXPlosion proof motor.

    Features N999 Series:

    • Compact design eases installation and use in limited space hazardous areas.
    • Construction is bronze and stainless steel wetted components.
    • Close tolerance design allows for cons...
    Explosion Proof 1/4" Learn More
  6. Oberdorfer Pumps

    Gear Pump & 1/4HP Motor

    N992R-01C81

    $1,630.20

    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
  7. Oberdorfer Pumps

    N991 Gear PUMP & motor reversible

    N991M-F07

    $989.00

    Reversible Gear PUMP & 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 service life. Pump ...

    115v/230v Reversible 1/4" Learn More
  8. 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
  9. 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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