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Reciprocating Pumps - Diaphragm, Piston, Plunger

These pumps have a diaphragm, piston or plunger which is reciprocating back and forth through a fixed stoke length. The diaphragm pumps use a circular semi-flat membrane that is flexed from a concave to a convex shape within a sealed chamber. There is no actual sliding contact of parts in the pumping chamber and therefore these pumps can handle solids, slurries, fibrous and very thick liquids quit well. Most diaphragm pumps are air operated, but electric do exist. Electric models are typically very small with several individual diaphragms working in series being driven by a rotating angled cam or a single diaphragm being driven by a mechanical connection to a solenoid. In this case, they are typically designed as metering pumps. Piston pumps like the name implies have a piston, ceramic typically, reciprocating within a very tight tolerance cylinder. Because of their materials of construction and mechanical design, they produce extremely high discharge pressures. By making them with several pistons working together in a single head a semi-steady flow can be obtained. With any of these pumps special consideration must be given to the cyclic pressure or hydraulic pulsation’s which naturally occur.Typical Positive Displacement Reciprocating pumps include AODD, single diaphragm, electric diaphragm, metering or proportioning and piston to name a few.
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  1. 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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  2. 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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  3. Remco 5536-2E3-63B 12vdc Bypass Pump 4GPM

    Remco

    12vdc Bypass Pump 4GPM

    5536-2E1-63B
    $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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  4. 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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  5. Remco_demand pump

    Remco

    Bypass Pump 2GPM

    3321-2E1-82B
    $206.41

    Industrial pump environments require precise engineering and quality components the bypass pump was designed with both. For its size, it is one of the most powerful and productive diaphragm pumps you can buy, pumping up to 2.0 gallons per minute. ...

    2GPM 60PSI 12v Learn More
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  6. Remco_Fatboy.jpg

    Remco

    Demand Pump 5.3GPM

    5537-1E3-58C
    $246.71

    Review New Model: 5537-1E1-65C

    Extreme Duty 115v --5.3gpm 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 whic...

    5.3GPM 60PSI 115v NPT Geolast Learn More
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  7. Remco - 3323-1E1-82B: 12v Demand Pump 2GPM

    Remco

    12v Demand Pump 2GPM

    3303-1E1-82B
    $196.58

    3303 no longer available. Review 3323-1E1-82B or 3313-1E1-82B

    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 ...

    2GPM 60PSI 12VDC Learn More
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  8. Remco 5538-1I1-94A FatBoy Demand Pump

    Remco

    FatBoy Demand Pump

    5538-1I1-69C
    $399.71

    New Model Number to Review: 5538-1E1-69C

    THE PROFLO FATBOY® PUMPS UP THE VOLUME WITH 7GPM. Demanding industrial pump environments require precise engineering and quality componentsè. The ProFlo FatBoy® was designed with both. To maximize the p...

    7GPM 100PSI 115V Demand NPT Learn More
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  9. remco rebel rv water pump nsf 12vdc

    Remco

    NSF RV Pump 12v

    53REBEL-JRV
    $215.00

    Remco 53REBEL-JRV NSF Certified RV Water Pump (12V)

    The Remco 53REBEL-JRV is a high-performance, NSF-certified RV water pump engineered for reliable, on-demand fresh water delivery. Designed for RVs, campers, 5th wheels, and off-grid cabins, this...

    3GPM 60PSI 12VDC Learn More
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  10. Remco 5537-1E1-58C 115v Demand Pump 5.3GPM

    Remco

    115v Demand Pump 100PSI

    5537-1i1-65C
    $323.00

    115V Demand Pump, 100 PSI

    The Remco 5537-1i1-65C is a high-performance 115V diaphragm demand pump, engineered for industrial, agricultural, and commercial applications requiring precision, reliability, and efficiency. With a built-in pressure swi...

    2.2GPM 100PSI 120v NPT Learn More
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