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Positive Displacement Pumps

These pumps are often thought of as high-pressure pumps. Their positive displacement of fluid and fixed volume are the result of the fluid being mechanically moved through their pump passage on a regular cycle. This means that regardless of the system they discharge into, the pressure and volume will remain constant. The power of the driving device and its speed, limit the volume and pressure.Positive Displacement pumps:Flow rates of GPD, CC/min to 100 GPM typically.Discharge pressures of a 1 to 1000 PSI.Low speed and fixed volume per cycle, they handle very viscid fluids well.Smaller than centrifugal pumps.Quiet, do not ad much heat to the fluid, suitable for shear sensitive fluids.Diaphragm pumps can easily pass solids, stringy and fibrous foreign matter. Are made in materials from CI to Titanium and PP, PVDF and PPS engineering resins.
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  1. 12vdc Cast Iron Gear pump battery dc hypro shertech GMCV

    Hypro Pumps

    12V DC Cast Iron Gear pump

    GMCV4VA-12
    $1,253.00

    12 volt 12v DC Rotary Cast Iron Gear pump. 303 SS fasteners, steel gears. Battery powered self priming heavy duty gear pump.

    Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. D...

    12vdc 1HP Learn More
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  2. marco mate gear pump 12v up14

    Marco Mate

    Oil Transfer Pump UP6

    M164-080-12
    $299.00

    12v DC Oil transfer gear pump. GPM Self-priming electric pump with helical bronze gears for transferring lubricating oils and viscous liquids. Nickel-plated brass body and stainless steel shaft. Particularly suitable for draining engine sumps wit...

    4gpm 290GPH 12v Learn More
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  3. Remco 5518-1E1-94A FatBoy Demand Diaphragm Pump

    Remco

    FatBoy Demand Diaphragm Pump

    5518-1E1-94A
    $474.99

    THE PROFLO FATBOY PUMPS UP THE VOLUME WITH 7GPM 12vdc. Demanding industrial pump environments require precise engineering and quality components. ProFlo FatBoy was designed with both. To maximize the potential of all five diaphragm chambers, Remco...

    7GPM 60PSI 12VDC QC Learn More
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  4. Hypro GMBN6VA Rotary Gear pump only sherflo shertech motor mount

    Hypro Pumps

    Bronze Gear pump only

    GMBN6V
    $1,051.82
    Rotary 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...

    No motor Learn More
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  5. Remco 3313-1E1-52C 115v Demand Pump 2.2GPM

    Remco

    115v Demand Pump 2.2GPM

    3313-1E1-52C
    $206.41

    115v Demand Pump 2.2GPM

    3313 series no longer available review 3323-1E1-52C

    Demanding industrial pump environments require precise engineering and quality components, the demand pump was designed with both. Demand pumps operated as a positive di...

    2.2GPM 60PSI 115AC Learn More
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  6. Pumptec 80134 High pressure pump

    Pumptec

    High pressure pump

    80134
    $412.59

    High pressure low volume electric pump. Pump has 2 sets of inlets and outlets. Pumptec 112V Pump 085 Bearing w/ M70 Motor - 120 Volt - 300 PSI 80134 Sandia Plastic [80134].

    Pump body is Teflon hard coated aluminum with 304SS plunger.

    POPULAR MOD...

    115v Learn More
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  7. Remco 5536-1E1-731A 24v Demand Pump

    Remco

    24v Demand Pump

    5536-1E1-731A
    Call For Price

    New Model Number: 5536-1E1-731B

    Demanding industrial pump environments require precise engineering and quality components葉he demand pump was designed with both. Demand pumps operated as a positive displacement pump which has a pressure swi...

    4GPM 60PSI 24DC . This product has been discontinued and is no longer available. See related products for a similar alternative Learn More
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  8. Remco 5538-2I1-94A Street Sweeper Pump 60PSI Bi-pass

    Remco

    Street Sweeper Pump 100PSI Bi-pass

    5538-2I1-94A
    $426.00

    Street Sweeper pump.

    THE PROFLO FATBOY BYPASS PUMPS UP THE VOLUME WITH 7GPM. Demanding industrial pump environments require precise engineering and quality components in the ProFlo FatBoy was designed with both. To maximize the potential of all f...

    7GPM 100PSI 12VDC Learn More
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  9. Riverside - 03438: Diaphragm repair part

    Riverside

    Diaphragm pump repair kit 3"

    03438
    $162.00

    Repair Diaphragm for Riverside Homelite Mud Pump DP3
    Durable, Reliable, and Perfect for Heavy-Duty Pumping Applications

    The Riverside 03438 Repair Diaphragm is designed to keep your Riverside Homelite mud pump DP3 operating at peak performance. Th...

    3" Learn More
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  10. Riverside - 03439: Diaphragm pump repair kit

    Riverside

    Diaphragm pump repair kit 2"

    03439
    $149.00

    Repair diaphragm for Riverside Homelite mud pump DP2. Diaphragm pumps are positive displacement pumps. They pump a specific volume for each pump cycle. Diaphragm pumps move fluids more slowly than centrifugal pumps, but can handle mud and larger a...

    2" Learn More
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