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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. Remco - 2240-1B1-101

    Remco

    12v Demand Spray Pump

    2240-1B1-10I
    $96.12

    12v Demand Spray Pump.

    1gpm 12v pump with On / Off switch. Economy Plus series. Far and away the best selling 12vdc pump in the industry. Choose from standard models or configure to meet the special needs of your OEM application. Replace Delevan ...

    12vdc On/Off switch 1gpm 40psi Learn More
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  2. Remco - 2240-1B1-10E

    Remco

    12v Demand Spray Pump

    2240-1B1-10E
    $96.12

    12v Demand Spray Pump.

    Far and away the best selling 12vdc pump in the industry. Choose from standard models or configure to meet the special needs of your OEM application. Replace Delevan 2200 pumps on Snowex Trynex spreaders. Long-life (2000 ho...

    12vdc Learn More
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  3. Flojet-G57-diaphragm-pump-PumpBiz2.jpg

    Flojet Pumps

    Diaphragm pump

    G575208
    $198.00
    Air driven, pneumatic pump. Glass filled Polypropylene double diaphragm pump with Santoprene diaphragms and EPDM check valve seats. Springs are Hastalloy.

    Connections are 3/8" HB . Air connection is 1/4" PLASTIC.

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  4. Flojet-G57-diaphragm-pump-PumpBiz.jpg

    Flojet Pumps

    Duplex Diaphragm pump

    G575245
    $198.00
    Air driven, pneumatic pump. Glass filled Polypropylene double diaphragm pump with Santoprene diaphragms and EPDM check valve seats. Springs are Hastalloy.

    Connections are 1/2" 90 degree elbow. Air connection is 1/4" FNPT brass.

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  5. Flojet-G57-diaphragm-pump-PumpBiz2.jpg

    Flojet Pumps

    Duplex Diaphragm pump

    G573185
    $221.00
    Glass filled Polypropylene double diaphragm pump with FKM diaphragms and check valve seats. Springs are Hastalloy.

    Connections are 3/8" MNPT" . Air connection is 1/4HB brass.

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  6. Remco 5536-2E3-63B 12vdc Bypass Pump 4GPM

    Remco

    12vdc Bypass Pump 4GPM

    5536-2E3-63B
    $214.92

    12v diaphragm pump with by-pass for bleach used in house exterior cleaning. Quick Connect ports accept various size fittings. Industrial pump environments require precise engineering and quality components - the demand pump was designed with both....

    4GPM 60PSI 12VDC FKM NPT Bypass Learn More
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  7. Remco 5537-1E1-58C 115v Demand Pump 5.3GPM

    Remco

    24v Demand Pump 5.3GPM

    5537-1E1-73A
    $219.00
    24VDC demand pump

    Demanding industrial pump environments require precise engineering and quality components—the demand pump was designed with both. Demand pumps operated as a positive displacement pump which has a pressure switch built in. When flo...

    5.3GPM 60PSI 24v NPT FKM Learn More
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  8. Remco_demand pump

    Remco

    115v Demand Pump 1GPM

    3321-1E1-52C
    $206.41

    Diaphragm pump with automatic switch. Demand

    Demanding industrial electric 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 h...

    1GPM 60PSI 115AC Learn More
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  9. riverside homelite trash pump 121TP L1537Z L1602y tp3 seal tp2

    Riverside

    Shaft seal pump repair kit

    627131A
    $99.00
    Shaft seal for Riverside Homelite 3" 2" trash pump and S3, repair kit. Includes both halves of the seal. 62713-1A
    3" Learn More
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  10. riverside homelite trash pump L1605Z tp4 seal 46150

    Riverside

    Shaft seal pump repair kit

    46150
    $103.00
    Shaft seal for Riverside Homelite 4" trash pump, repair kit. Includes both halves of the seal. L1605Z
    4" pump seal Learn More
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