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 pulsationâ€™s which naturally occur.Typical Positive Displacement Reciprocating pumps include AODD, single diaphragm, electric diaphragm, metering or proportioning and piston to name a few.

Remco

12v Demand Pump 5.3GPM

5537-1E3-82B

$280.80

Engineered to withstand the most rigorous and punishing duty-cycles, the Remco Professional Grade 5500 series pump is a top of the line performer.
Made in the USA
Professional Grade
Factory tested performance and efficiency
Superior vertical p...

5.3GPM 60PSI 12v NPT Geolast Learn More

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Remco

100PSI Bypass

5538-1i1-63A

$306.88

NEW MODEL NUMBERS TO REVIEW: 5518-2I1-94A or 5538-2I1-94A

THE PROFLO FATBOY® PUMPS UP THE VOLUME WITH 5.3gpm. Demanding industrial pump environments require precise engineering and quality components the ProFlo FatBoy® was designed with both. T...

5.3/gpm 100psi 12VDC Learn More

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Remco

115v Demand Pump 2GPM

3323-1E1-52C

$206.41

Demanding industrial pump environments require precise engineering and quality components. The demand pump was designed with both. Demand pumps operate as a positive displacement pump which has a pressure switch built in. When flow is open the pum...

2.2 GPM Demand 60 PSI Viton Santoprene 3/8″ FNPT 110/120 VAC Learn More

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Pulsafeeder

68 GPD/60 PSI Metering Pump

068-XA-AAAAXXX

$693.00

68 GPD / 257.38 LPD 100 PSI metering pump 115 vac. 51 strokes / minute max. 1.0 Amps full load.
Dimensions: 6.75" x 8.875" x 7.25" (H x W x D)

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Remco

12v Demand Pump 2GPM

3323-1E1-82B

$196.58

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 flow is open the pum...

2.2 GPM Demand 60 PSI Viton Santoprene 3/8″ FNPT 12 VDC Learn More

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Remco

SmoothFlo Demand Bypass Pump 12v

3923-9J2-82B

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SmothFlow by Remco pump.

Demanding industrial pump environments require precise engineering and quality components. The ProFlow Ultra series was designed with both. Demand pumps operated as a positive displacement pump which has a pressure switch...

2GPM 120PSI 12VDC . Please Call for Information Learn More

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Remco

FatBoy Diaphragm Pump Bypass

5518-2I1-94A

$283.94

THE PROFLO FATBOY® PUMPS UP THE VOLUME WITH 7GPM.

FatBoy® Demanding industrial pump environments require precise engineering and quality components - the ProFlo FatBoy was designed with both. Liquid de-icing applications. To maximize the potent...

7GPM 100PSI 12VDC FatBoy® Learn More

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Remco

12v Demand Pump

5536-1E1-82B

$214.92

Demanding industrial pump environments require precise engineering and quality componentsè‘‰he demand pump was designed with both. Demand pumps operated as a positive displacement pump which has a pressure switch built in. When flow is open th...

4GPM 60PSI 12DC Learn More

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Remco

FatBoy Demand Pump

5538-1I1-94A

$379.00

THE PROFLO FATBOY® PUMPS UP THE VOLUME WITH 7GPM 100psi. Demanding industrial pump environments require precise engineering and quality componentsè. The ProFlo FatBoy® was designed with both. To maximize the potential of all five diaphragm chamber...

7GPM 100PSI 12VDC Demand NPT Learn More

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Remco

24vdc Demand Pump

2452-1H1-20B

$173.64

Demanding industrial pump environments require precise engineering and quality componentsè‘‰he demand pump was designed with both. Demand pumps operated as a positive displacement pump which has a pressure switch built in. When flow is open th...

2GPM 80PSI Learn More

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