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.

Oberdorfer Pumps

N992R Gear Pump & Mtr

N992R-C82

$1,618.10

24vDC gear pump and 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. Inclu...

1/4HP 24vDC Learn More

Add to Wish List Add to Compare
Hypro Pumps

Rotary Gear pump only

GMBN4VA

$1,469.66

Rotary Gear pump end. 303 SS fastners, 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 press...

Learn More

Add to Wish List Add to Compare
Hypro Pumps

Bronze Rotary Gear pump

GMBN5VB

$1,696.46

Rotary Gear pump with electric motor. 303 SS fastners, Ryton gears. Heavy duty rotary external Gear pump, heavy duty with motor.
Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharg...

No motor Learn More

Add to Wish List Add to Compare
Oberdorfer Pumps

Bronze gear pump forward reverse

N992-37F30

$1,523.00

Oil change pump. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Close coupled to a 115vac motor including a Forward / Off / Reverse switch. Often used at dockside for changing the oil in boats. Bearing...

1/3HP 115v TEFC REVERSIBLE Learn More

Add to Wish List Add to Compare
Oberdorfer Pumps

N994 Gear Pump & Mtr.

N994H-N26

$1,554.00

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...

1HP 115/230v Learn More

Add to Wish List Add to Compare
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

Add to Wish List Add to Compare
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

Add to Wish List Add to Compare