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.

Hypro Pumps

Cast Iron Gear pump 3/8

GMCV3VA4

$1,114.00

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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Oberdorfer Pumps

Bronze gear pump

N993C-M26

$1,298.70

Bronze 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 p...

3/4HP 115/230v Learn More

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Oberdorfer Pumps

N994 Gear Pump with motor

N994S15H-M95

$1,493.70

Gear Pump bronze with 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 ...

3/4HP 230/460v Bronze / FKM Learn More

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Hypro Pumps

Cast Iron Gear pump 1/4"

GMCV2VA3

$1,230.00

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

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