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Gear Pumps

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

    N993 bronze Gear pump

    N993R

    $586.00
    Pump Only PEO, no 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.

    Gear pu...

    Pump Only PEO Relief Learn More
  2. Oberdorfer

    N991 Bronze gear pump PEO

    N991-32

    $309.00
    Bronze gear pump . 1/4" 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 pu...

    NO motor Learn More
  3. Oberdorfer

    N991 Bronze gear pump PEO

    N991R-32

    $355.00
    Bronze gear pump & motor. 1/4" Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Include relief valve built in. Bearings are designed of high performance carbon-graphite material selected for wear resist...
  4. Oberdorfer

    N994 Gear Pump Only

    N994R-S15 Gear pump

    $699.00
    Gear Pump Only. No motor. 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 servi...
  5. Oberdorfer

    Bronze Pedestal Gear Pump w/ relief valve

    N1000R

    $309.00
    Bronze Pedestal Gear pump with relief valve. Often used as a coolant pump on welding torch. Pump flow is reversible.
    • Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffecte...
  6. Hypro

    Bronze Gear Pump W/Relief

    BBV1

    $970.00

    Bronze Pedestal Gear Pump, light duty with relief valve.

    Obsolete see N2000 or N3000

    Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applic...

    Bronze 1/4" Learn More
  7. Oberdorfer

    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...
  8. Oberdorfer

    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...

  9. Hypro

    Bronze Gear Pump W/Relief

    BBV6 Pedestal Gear Pump

    $1,124.00
    1" Bronze Pedestal Gear Pump, light duty with relief valve. Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applications, providing a near...
    Bronze 1" Learn More
  10. Hypro

    Bronze Gear pump only

    GMBN2VA

    $1,068.00
    Rotary Gear pump end. 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 pres...

    No motor Learn More
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