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

N993 Pump & motor 12VDC

N993Q-J75

$1,776.00

12VDC gear Pump 1/2HP.

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.

12 volt Gear pu...

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Graymills Pumps

Vertical CI Centrifugal Pump & Mtr

SG4F 1/2

$1,104.44

The SG series are gear pumps specially designed for high pressure applications. These pumps are recommended for use with liquids that have some lubricating qualities and are relatively free of abrasives and scale. These pumps mount vertically and...

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Graymills Pumps

Suction Coolant Pump & Mtr

IMS50E 1/2

$752.91

Graymills Coolant pumps

are typically found on OEM machine tool equipment and are thus well suited for replacement or retrofit machine tool pumping applications. These pumps can also be used on other industrial applications requiring a vertical c...

1/2hp 115/230v Learn More

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