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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. Flojet Pumps

    Explosion Proof beverage alcohol pump for high proof spirits

    G70C202A

    $623.00

    Little Explosion Proof Alcohol Pumps are the best for high proof beverage alcohol.

    All of the wetted parts are completely resistant to ethanol, alcohol and other low flash point flammable liquids. G70C202A


    The Model G70C is designed to be the ul...

    G70C ATEX Kalrez® Air Operated Diaphragm Pump for alcohol and high proof spirits Learn More
  2. Pulsafeeder

    Metering Pump - 30 GPD/80 PSI

    LC54SA-PTC1

    $642.00
    Our lowest cost model; Manual function control for stroke length; Highly reliable timing circuit; EMI resistant; Thermally protected solenoid with auto-reset, Bleed valve assembly. Four compact and rugged models with capacities up to 30 GPD @ 80 ...
  3. All-Flo Pumps

    PP Air Operated Double Diaphragm Pump

    A050-SPP-SSPE-S70

    $644.28
    PolyPro Air AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Click here to Learn How to Size your Diaphragm Pump and for a Mater...
  4. General Pump

    Pressure washer pump 5.3HP Hollow Shaft

    TX1506G6

    $603.75
    Pressure washer Pump. TX Series 63, Triplex Plunger Pump.
    • Flanged for direct couple to gasoline engines (SAE J609)
    • Set screw for key way
    • Oversized bearings and dual sight glasses
    • Large, light weight connecting rods
    • Longer life low and high press...
  5. General Pump

    T 63 Triplex Plunger 6.2HP Hollow Shaft

    TX1508G6

    $603.75
    TX Series 63, Triplex Plunger Pump.
    • Flanged for direct couple to gasoline engines (SAE J609)
    • Set screw for key way
    • Oversized bearings and dual sight glasses
    • Large, light weight connecting rods
    • Longer life low and high pressure seals
    • Forged brass...
  6. General Pump

    T 63 Triplex Plunger 8.1HP Hollow Shaft

    TX1506G8

    $616.40
    TX Series 63, Triplex Plunger Pump.
    • Flanged for direct couple to gasoline engines (SAE J609)
    • Set screw for key way
    • Oversized bearings and dual sight glasses
    • Large, light weight connecting rods
    • Longer life low and high pressure seals
    • Forged brass...
  7. General Pump

    TT 51 Triplex Plunger 3.1hp

    TT9071EBFU

    $667.00
    TT Series 51, Triplex plunger pump, hollow shaft, flanged for direct couple to electric motors, with built-in unloader. Pump Only.
    • Forged brass manifold with exclusive lifetime warranty
    • Die cast, anodized aluminum, oil-bath crankcase
    • Solid ceram...
  8. Pumptec

    High pressure pump

    80171

    $648.02
    High pressure low volume electric pump. Pump has 2 sets of inlets and outlets.

    POPULAR MODEL IN Misting. With '02 nozzle flow is 1GPM. 348U-090/M7480547

    115v Learn More
  9. Pulsafeeder

    30 GPD/100 PSI Metering Pump

    030-XA-AAAAXXX

    $607.50
    30 GPD / 113.55 LPD 100 PSI metering pump 115 vac. 51 strokes / minute max. .79 Amps full load. 030-XA-AAAAXXX

    Dimensions: 6.75" x 8.875" x 7.25" (H x W x D)

  10. 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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