Self-Priming Pump

Self priming pumps are able to pull prime after loosing prime or in some cases can run dry and initiate priming. Centrifugal pumps which are called self-priming actually need to be primed the very first time and then after should hold prime or start up again if pump has retained its priming liquid in its volute. These pumps do not prime from a dry condition.

The second type of Self Priming pump is a positive displacement one and can pull prime completely on its own from often a dry condition.

Self-priming pumps all have a common limit to how high they can lift or prime. This is often 25 feet maximum and with some pumps may take up to 5 minutes.

Oberdorfer Pumps

N994 Gear Pump & Motor w/Relief Valve

N994RH-N26

$3,432.00

Gear Pump, Oberdorfer.

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...

1HP 115/230v 1/2" Learn More

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Oberdorfer Pumps

3/4" Bronze gear pump 1HP Oberdorfer

N970H-N76

$2,611.08

Oberdorfer 3/4" Bronze rotary gear pump with relief valve and close coupled to a 1 HP 24VDC 1725 RPM motor. Often used to pump Diesel fuel. Pump housings and gears are made of top quality bronze, shafts are stainless steel 303. Bearings are made ...

24vDC Learn More

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Hypro Pumps

Bronze Gear pump 1HP

GMBN3VA43

$1,483.72

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 press...

3/8" 3phase ODP Learn More

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