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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 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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  1. MP - 21302: FM5 Pump w/ no engine

    MP Pumps

    FM5 Pump w/ no engine

    21302
    $987.50
    Flomax 5 are self-priming pumps, pipe size 1.5" NPT. Pump end for use with standard engines. Includes CI PUMPAK only. Mounts to standard engine with 3/4" diameter shaft. Not for use with electric motors.
    3/4" shaft pump kit Learn More
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  2. All-Flo SP-20 Stainless Steel Air Operated Double Diaphragm Pump

    All-Flo Pumps

    Stainless Steel Air Operated Double Diaphragm Pump

    A200-C33-TT3T-B70
    $14,179.59

    Stainless Steel AODD Pump 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. 316SS 2" connections are dual FNPT and Flange (ANSI 150#/DIN) design.

    ...
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  3. AMT 4225-V5 Agricultural Portable Gas Driven Pump

    AMT Pumps

    Agricultural Portable Gas Driven Pump

    4225-V5
    $1,057.19

    Discontinued, Parts Available

    Agricultural 2" Dewatering pump has FKM seals and Honda OHC engine. Cast iron pump 9600GPH for use in AG alachlor herbicides, construction, irrigation, fire fighting & general dewatering, spraying herbicides. 5 HP Ho...

    Honda GC160 FKM Learn More
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  4. All-Flo SE-20 Stainless Steel Air Operated Double Diaphragm Pump

    All-Flo Pumps

    Stainless Steel Air Operated Double Diaphragm Pump

    SE-20
    $9,874.74

    2" Stainless Steel Air Operated Double Diaphragm Pump 2". FDA Santoprene 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. 2" connections ar...

    316SS, Santo, EPDM 2" Learn More
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  5. dredge pump amt_316f-95

    AMT Pumps

    Dredge Pump - Pedestal

    316F-99
    23% Off Special Price $1,206.74 Regular Price $1,567.19
    No engine, Pedestal 3/4" keyed shaft for customer mount driver.
    • High Chromium Stainless Steel Internal Components Resist Wear from Sea Water Mixed with Abrasive Sand
    • Silicon Carbide Mechanical Seal Resists Abrasives and Extends Seal Life
    • H...
    Pedestal Mount w/ 3/4" Keyed Shaft Learn More
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  6. Graymills - IMS25E 1/4: Vertical CI Centrifugal Pump

    Graymills Pumps

    Suction coolant Pump

    IMS25E 1/4
    $512.00

    Suction Coolant pump - self priming

    Graymills 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 applica...

    1/4HP 115/230v Learn More
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  7. MP FM30-18 FM30 Pump w/ 18HP Engine

    MP Pumps

    FM30 Pump w/ 18HP Engine

    39143
    $10,350.00

    Flomax 30 are self-priming pumps, pipe size 3" NPT. FM30 Pump with single seal and 18HP Briggs & Stratton engine. Use for irrigation, dewatering, tank filling, bilge, HDD, pilings and other large water transfer or construction applications. Pump i...

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  8. MP 43928 2CT Trash Pump PEO

    MP Pumps

    2CT-3HS Trash Pump PEO

    43928
    $3,600.00

    2CT Jaeger Trash Pumps, self-priming, cast iron. Pumpak for close-coupled electric motor drive provided separately.

    The Model 2CT is a 2" x 2" Self Priming Trash Pump which can be close coupled 184TC motor 3450rpm. This unit has cast iron constru...

    For electric Learn More
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  9. MP - 21300: FM5 pump pak Engine mount

    MP Pumps

    FM5 pump pak Engine mount

    21300
    $1,675.00
    Flomax Pumps 5 are self-priming pumps, pipe size 1.5" NPT. Pump end for use with standard engines. For use with 3/4" crankshaft. PumpPack
    Pump kit, Aluminum Learn More
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  10. MP 26550 FM5 Pump w/2HP Motor

    MP Pumps

    FM5 Pump w/2HP Motor

    26550
    $2,587.50
    Flomax 5 are self-priming pumps, pipe size 1.5" NPT. Electric Motor Driven Pump using a Close-Coupled Cast Iron Electric Motor-2 HP
    2HP 115/230v CI Learn More
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