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    5.5 HP - 14 HP Gas Engine, Cast Iron Pump Units, 2" & 3", Vac-U-Seal

    When it comes to high volume, low pressure pumping of liquid fertilizers, agchemicals, liquid deicing, water, etc., this series of John Blue Vac-U-Double Seal Centrifugal pumps is considered the leader. The patented Vac-U-Seal system is derived from an inner function of the pump. The impeller applies vacuum pressure or suction to the seal, along with a double "wet" seal, keeps harmful corrosive liquids and abrasive particles from entering the seal. This unique method of lubrication provides extended life for the seal, eliminates thrust loads increasing bearing life, and allows the pump to be operated dry without damaging the unit.

    • Patented Vac-U-Double Seal design eliminates pressure on the seal resulting in long seal life.
    • Closed type hydraulically balanced impeller eliminates thrust loads for increased bearing life. Wear actually improves impeller efficiency.
    • No adjustments of impeller necessary with shims.
    • Pump can be operated DRY without damaging the seal.
    • Cast iron heavy wall section provides extended life to unit.
    • Total Dependability and Versatility.
    • Designed for Many Chemicals and Fertilizers.
    • Speeds to 3600 RPM.
    • 2 Year Unconditional Warranty (Centrifugal Pumps Only).
    • Long Coupled Units Include "Orange Peel" OSHA Approved Guard.

    1.0 Specific Gravity Pumps for Water Only; Use 1.3 & Higher Specific Gravity Pumps for Fertilizer & Other Heavy Liquids.
    Manufacturer: John Blue
    0Types Available
    Picture of Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 5.5 HP Honda Engine, 2" FPT Ports, 200 GPM, 112 Flow @ 25 PSI, 1.4 Spec. Grav
    Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 5.5 HP Honda Engine, 2" FPT Ports, 200 GPM, 112 Flow @ 25 PSI, 1.4 Spec. Grav
    Centrifugal Pump, Cast Iron, 2IN X 2IN, Self Priming, 5 HP Honda Engine (GX160K1QX)
    SKU: DUBU25GHSP
    VIEW CATALOG PAGE E1140
    $1,241.00 / EA
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    Picture of Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 13 HP Honda Engine, 3" FPT Ports, 400 GPM, 365 Flow @ 25 PSI, 1.3 Spec. Grav
    Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 13 HP Honda Engine, 3" FPT Ports, 400 GPM, 365 Flow @ 25 PSI, 1.3 Spec. Grav
    Centrifugal Pump, 3IN x 3IN FPT, Self Prime, Honda Engine (GX390) 389cc, 11.7 Hp, Recoil Start, High Flow, Double Viton Seal
    SKU: DUBU313GH-HF
    VIEW CATALOG PAGE E1140
    $2,085.00 / EA
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    Picture of Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 13 HP Honda Engine (Electric Start), 3" FPT Ports, 400 GPM, 365 Flow @ 25 PSI, 1.3 Spec. Grav
    Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 13 HP Honda Engine (Electric Start), 3" FPT Ports, 400 GPM, 365 Flow @ 25 PSI, 1.3 Spec. Grav
    Centrifugal Pump, 3IN x 3IN, Self Prime, 11.7 HP Honda Electric Start (GX390), High Flow, Double Viton Wet Seal
    SKU: DUBU313GHE-HF
    VIEW CATALOG PAGE E1140
    $2,492.00 / EA
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    Picture of Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 13 HP Honda Engine (Electric Start), 3" Flanged Ports, 400 GPM, 365 Flow @ 25 PSI, 1.3 Spec. Grav
    Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 13 HP Honda Engine (Electric Start), 3" Flanged Ports, 400 GPM, 365 Flow @ 25 PSI, 1.3 Spec. Grav
    Centrifugal Pump, 3IN x 3IN Flanged, Self Prime, 11.7 HP Honda, 12 Volt Start (GX390), High Flow, Double Viton Seal
    SKU: DUBU313GHE-HF-F
    VIEW CATALOG PAGE E1140
    $2,523.00 / EA
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    Picture of Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 14 HP Kohler Engine (Electric Start), 3" Flanged Ports, 425 GPM, 380 Flow @ 25 PSI, 1.3 Spec. Grav
    Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 14 HP Kohler Engine (Electric Start), 3" Flanged Ports, 425 GPM, 380 Flow @ 25 PSI, 1.3 Spec. Grav
    Centrifugal Pump, 3IN X 3IN Flanged, Self Priming, Cast Iron, with 14 HP Kohler, 12 Volt Start Engine, High Flow
    SKU: BUSP3350-G14KFLG
    VIEW CATALOG PAGE E1140
    $2,798.00 / EA
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    Picture of Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 13 HP CRX Engine (Electric Start), 3" FPT, 400 GPM, 365 Flow @ 25 PSI, 1.3 Spec. Grav
    Vac-U-Seal Self Priming Centrifugal Pump Unit, Cast Iron with 13 HP CRX Engine (Electric Start), 3" FPT, 400 GPM, 365 Flow @ 25 PSI, 1.3 Spec. Grav
    Centrifugal Pump, 3IN x 3IN, Self Prime, 12 HP CRX Engine with 12 Volt Start, High Flow, Double Viton Wet Seal
    SKU: DUBU313CRXE-HF
    VIEW CATALOG PAGE E1140
    $2,091.00 / EA
    i h
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    Additional Information

    Next Generation Self-Priming Centrifugal Pumps
    FEATURES:

    • 2-in-1 Inlet Design (patent pending). (2) Inlet Locations on (1) 3" Self Priming Pump.
    • The Standard Lower Inlet (top pump), with Backflow Check Valve, Yields Maximum Pump Flow.
    • The Higher Inlet (lower pump), Allows the Outlet Lines to Drain After Shutoff While Retaining Self-Priming Capability On Next Start-Up.
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