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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.

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  1. All-Flo KV-038 PVDF Air Operated Double Diaphragm Pump

    All-Flo Pumps

    PVDF Air Operated Double Diaphragm Pump

    KV-038
    $969.69
    Kynar 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...
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  2. Hypro MCN6VB Rotary Gear pump only

    Hypro Pumps

    Rotary Gear pump only

    MCN6VB
    $5,266.34
    Rotary Gear pump end. Cast Iron with 303 SS fastners, CI 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.

    U...

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  3. Oberdorfer N990H-N26 Bronze Rotary Gear Pump w/ motor

    Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ motor

    N990H-N26
    $2,276.30
    Oberdorfer Close coupled bronze rotary gear pumps.
    • Bronze Construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • The pump drive shaft is connected to the motor shaft by ...
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  4. PumpBiz RBR8645T Rainbow Industrial pumping unit

    PumpBiz

    Rainbow Industrial pumping unit

    RBR8645T
    $37,000.00
    Rainbow R-Prime Industrial Pumping unit. Large water pumps. Rainbow's thirty + years of pumping experience has resulted in the introduction of the "RAINBOW R-PRIME SERIES PUMPING UNITS." We are now offering a complete line of automatic self-pri...
    Rainbow 8" Learn More
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  5. Oberdorfer N990J-T47 Bronze Rotary Gear Pump w/ motor

    Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ motor

    N990J-T47
    $3,624.13

    Oberdorfer Close coupled bronze rotary gear pumps.

    • Bronze Construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • The pump drive shaft is connected to the motor shaf...
    1-1/2HP 115/230v 1" Learn More
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  6. All-Flo - A100-FPK-SSKE-S70: PVDF Air Operated Double Diaphragm

    All-Flo Pumps

    PVDF Air Operated Double Diaphragm Pump

    A100-FPK-SSKE-S70
    $3,252.86

    Kynar PVDF Air AODD Pump 1". Chemical double diaphragm pump made in USA. Featuring All-Flo's Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Replaces...

    1" KE-10 kynar Santo Learn More
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  7. Oberdorfer N9000RS18 Bronze Pedestal Gear Pump w/ relief valve

    Oberdorfer Pumps

    Bronze Pedestal Gear Pump w/ relief valve

    N9000RS18
    $1,708.20
    Bronze Pedestal Gear pump with relief valve. Often used as a oil pump on large ships to pre-lube the bearings.
    • Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the b...
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  8. Air Diaphragm Pump

    All-Flo Pumps

    Air Diaphragm Pump

    AE-15
    $1,694.55
    Air Diaphragm Pump 1.5". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS from .2...
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  9. Oberdorfer N990RJ-N96 Bronze Rotary Gear Pump w/ motor relief valve

    Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ motor & relief valve

    N990RJ-N96
    $2,483.00
    Oberdorfer Close coupled bronze rotary gear pumps.
    • Bronze Construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • The pump drive shaft is connected to the motor shaf...
    Learn More
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  10. Plastic Flexible Impeller Pump

    Jabsco Pumps

    Plastic Flexible Impeller Pump

    17430-0003
    $1,730.00
    Jabsco'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
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