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Rotary Pumps - Gear, Flexible Impeller, Screw

These pumps have a set of rotating gears, flexible impellers, screw rotor or vanes connected to a driven shaft. Therefore most of these pumps incorporate a mechanical seal, packing or lip seal along the shaft at its back end in order to keep the fluid from leaking along the shaft. There are a few models, which are magnetically coupled and thus seal-less. Another type which is seal-less is the Peristaltic which uses a rotating roller assembly to compress a hose over a given arc length. These pumps are very reliable in pumping medium to thick liquids which typically are not handled by Centrifugal pumps and in applications where medium to high discharge pressures are needed at low flow rates. Varying the motor speed easily controls their output. Most units include some sort of built in relief valve, but those that do not must have one installed into the piping to prevent a dangerous over pressure condition. Not recommended for liquids with fine abrasives or thin non-lubricating liquids like water that will accelerate pump wear.Typical Positive Displacement Rotary pumps include helical gear, spur gear, lobe, progressive cavity, peristaltic, flexible impeller and sliding vane to name a few.
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  1. 316 Stainless Steel Gear pump

    Hypro Pumps

    316 Stainless Steel Gear pump

    GMSV6C3T
    $1,799.44

    Rotary Gear pump with motor. 316 Stainless construction, Ryton gears.

    Use for pressure spraying, circulation of lubricants, tank / drum filling. Will handle water like liquids to very thick. Bi-rotational allows for flow direction reversal. Flush...

    3HP 230/460V TEFC Learn More
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  2. Hypro GMSV6C 316SS Gear pump end only

    Hypro Pumps

    316SS Gear pump end only

    GMSV6C
    $1,593.04

    Rotary Gear pump PEO pump end only. 303 SS fasteners, Ryton gears.

    Use for pressure spraying, circulation of lubricants, tank / drum filling. Will handle water like liquids to very thick. Bi-rotational allows for flow direction reversal. Flush po...

    3HP Learn More
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  3. stainless steel gear pump with electric motor

    Hypro Pumps

    316SS Gear pump

    GMSV4A53
    $2,048.36

    316SS 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
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  4. Hypro GMSV4A 316SS Gear pump

    Hypro Pumps

    316SS Gear pump

    GMSV4A
    $1,962.16

    316SS 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
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  5. Hypro BB1 Bronze Pedestal Gear Pump

    Hypro Pumps

    Bronze Pedestal Gear Pump

    BB1
    $2,141.48

    Bronze Pedestal Gear Pump, light duty. Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applications, providing a nearly pulseless flow and ar...

    bb Learn More
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  6. Hypro B1 Bronze Pedestal Gear Pump

    Hypro Pumps

    Bronze Pedestal Gear Pump

    B1
    $1,939.52
    Bronze Pedestal Gear Pump, light duty with zerk grease fittings. Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applications, providing a n...
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  7. Hypro C2K Cast Iron Pedestal Gear Pump

    Hypro Pumps

    Cast Iron Pedestal Gear Pump

    C2K
    $1,364.15
    Cast Iron Pedestal Gear Pump, light duty with grease zerks that requires greasing.

    Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applicati...

    1/4" Kevlar packing Learn More
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  8. Hypro C1V Cast Iron Pedestal Gear Pump

    Hypro Pumps

    Cast Iron Pedestal Gear Pump

    C1V
    $1,253.63
    Cast Iron Pedestal Gear Pump, light duty NO grease zerks that requires greasing.

    Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial application...

    1/4" FKM Learn More
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  9. Hypro C5K Cast Iron Pedestal Gear Pump

    Hypro Pumps

    Cast Iron Pedestal Gear Pump

    C5K
    $1,493.69
    Cast Iron Pedestal Gear Pump, light duty with grease zerks that requires greasing.

    Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applicati...

    3/4" Cast Iron Learn More
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  10. Hypro C6K Cast Iron Pedestal Gear Pump

    Hypro Pumps

    Cast Iron Pedestal Gear Pump

    C6K
    $1,634.69
    Cast Iron Pedestal Gear Pump, light duty with grease zerks that requires greasing. NO relief valve.

    Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and ...

    1" Cast Iron Learn More
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