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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All-Flo Pumps
PP Air Operated Double Diaphragm Pump Bolted Series
PV-038
$648.14PolyPro Air AODD Pump 3/8". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. For handling large size solids order the Max-pass valve under accessor... -
All-Flo Pumps
Kynar Air Operated Double Diaphragm Pump
S038-SQK-SEKE-S70
$1,124.37Kynar Air AODD Pump 3/8". PVDF Kynar body, Santoprene elastomers, PTFE Teflon diaphragm. Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Often use...3/8" 9GPM Kynar Learn More -
Hypro Pumps
Bronze Gear pump only
GMBN3VA
$1,295.88Rotary Gear pump end. 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 pres...
3/8" motor mount kit Learn More -
All-Flo Pumps
PVDF Air Operated Double Diaphragm Pump
KV-038
$969.69Kynar PVDF Air AODD Pump 3/8". 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 for a Mat... -
Jabsco Pumps
Plastic Flexible Impeller Pump
17430-0003
$1,730.00Jabsco's self-priming plastic flexible impeller pump is designed for transfers, circulation, spill returns, filtration and filling line use. Easily handles pure solutions, foaming liquids, emulsions, suspended solids, gels and metallic contam...115v 1/2HP Learn More -
Hypro Pumps
Bronze Gear pump only
MBN3VA
$5,401.27Rotary 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 pressure...
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All-Flo Pumps
Air Diaphragm Pump
A050-NAA-TTYT-S00
$1,171.50Air Diaphragm 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. S = Standard (Suction Right / Discharge Right)Click ...
1/2" Alum/Teflon Learn More -
All-Flo Pumps
Air Diaphragm pump Aluminum
A050-NAA-VVYV-S30
$1,314.95Aluminum 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 vent ho...
1/2" FKM Learn More -
Oberdorfer Pumps
Bronze Pedestal Gear Pump w/ relief valve
N1000R
$401.70Bronze Pedestal Gear pump with relief valve. Often used as a coolant pump on welding torch. Pump flow is reversible.- Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffecte...
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Hypro Pumps
Bronze Gear pump 1HP
GMBN3VA43
$1,483.72Rotary 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
