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 SOME 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. These would be diaphragm / mud Pumps.
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. While some are limited to only a few feet vertical suction lift.
Self Prime pumps come in all materials like Cast Iron, FRP, Aluminum and Stainless. Powered by electric motors, gas / diesel engines, PTO / pedestal and air / pneumatic.
Many self priming pumps are able to handle debris / trash / solids, while others are for high pressure (fire fighting, irrigation, washdown).
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Oberdorfer Pumps
N994 Gear Pump w/brkt
N994-37
$1,717.30Gear Pump. 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 service life.Gea...
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Flojet Pumps
Industrial Demand Pump
2100-789
$675.60Spray pump is a Duplex Diaphragm demand pump 115v. Use as a carpet cleaning machines, solar water pump or any other powered shower, sprinkler, misting system. Demand switch automatically turns the spray pump on and off when discharge valve is o... -
Aquatec Pumps
5 chamber 12V diaphragm pump
5513-1E12-B636
$290.5412vdc 550 Series Super Flow Pump: Reverse Osmosis System Pump, High Powered RO / DI Reverse Osmosis Pump
OPERATION: The 550 pumps can draw water from a holding tank and pressurizeit, or boost the pressure from a low pressure source. It is designe...
12vdc Learn More -
Hypro Pumps
316SS Gear pump
GMSV4A53
$2,048.36316SS Rotary Gear pump. Ryton gears. Stainless steel gear pump for aggressive chemicals.
Use for pressure spraying, circulation of lubricants, tank / drum filling. Will handle water like liquids to very thick. Bi-rotational allows for flow direct...
3/4HP 230/460v , 1/2" Learn More -
Hypro Pumps
316SS Gear pump
GMSV4A
$1,962.16316SS Rotary Gear pump end PEO*. 303 SS fasteners, Ryton gears. Stainless steel gear pump for aggressive chemicals.
Use for pressure spraying, circulation of lubricants, tank / drum filling. Will handle water like liquids to very thick. Bi-rota...
No motor, 1/2" Learn More -
All-Flo Pumps
Air Operated Double Diaphragm Pump Bolted Series
A050-NAA-GGPN-S00
$1,171.50Diaphragm Pump, Aluminum Air AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Click here to Learn How to Size your Diaphragm Pump and ...
Aluminum 1/2" Learn More -
Jabsco Pumps
Bronze Utility Pump
18610-0271
$889.00Portable Pump For general transfer pumping where self-priming, 6 gpm flow, debris tolerance and portable 115VAC operation is desired. Long lasting AC induction motor has no brushes to wear out. Do not pump gasoline or other flammable liquids. D...115v Learn More -
Jabsco Pumps
Bronze Utility Pump
18610-0273
$889.00Portable Pump. For general transfer pumping where self-priming, 6 gpm flow, debris tolerance and portable 115VAC operation is desired. Long lasting AC induction motor has no brushes to wear out. Do not pump gasoline or other flammable liquids. ... -
All-Flo Pumps
Conductive Nylon AODD Pump
CN-025B
$513.15Although the air powered pump eliminates ignition from electrical motors and internal combustion engines when pumping flammable fluids there is still the possibility of static electrical charge build up on the outside of the pump. All-flo now p... -
All-Flo Pumps
Air Diaphragm pump Stainless
A050-NA3-VV3V-000
$1,867.80Stainless Steel Diaphragm Air AODD Pump 1/2".
All-Flo pneumatic diaphragm pumps are used throughout industry, chemical, paints, solvents and paints. Standard (Suction Right / Discharge Right). Made in USA.
Lube-free air valve, Non-stalling, No ...
1/2" Stainless Learn More
