My Cart

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.
View as List Grid

Items 11-20 of 276

Set Descending Direction
per page
  1. General Pump

    TT 51 Triplex Plunger 3.1hp

    TT9071EBFU

    $967.15
    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...
  2. General Pump

    TT 51 Triplex Plunger 3.5hp

    TT941

    $682.01
    TT Series 51, Triplex plunger pump with solid shaft - standard with 24 mm solid shaft for pulley mount or direct drive with flex coupler and bell housing. Ideal for all general cleaning applications.
    • Forged brass manifold with exclusive lifetime...
  3. General Pump

    TT 51 Triplex Plunger 3.8hp

    TT2028EBF

    $715.36
    TT Series 51, Triplex Plunger Pumps. Hollow Shaft, Flanged for Direct Couple to Electric Motors (NEMA-56C).
    • Forged brass manifold with exclusive lifetime warranty
    • Die cast, anodized aluminum, oil-bath crankcase
    • Solid ceramic plungers with contin...
  4. General Pump

    TT 51 Triplex Plunger 4.8hp

    TT2035EBF

    $715.36
    TT Series 51, Triplex Plunger Pumps. Hollow Shaft, Flanged for Direct Couple to Electric Motors (NEMA-56C).
    • Forged brass manifold with exclusive lifetime warranty
    • Die cast, anodized aluminum, oil-bath crankcase
    • Solid ceramic plungers with contin...
  5. Pumptec

    112T-075/M15 Sprayer Pump

    80010

    $405.59
    Pumptecç—´ 12V DC spray pumps and systems make compact, efficient sprayers possible. With unmatched efficiency, Pumptecç—´ quiet pumps and systems replace gas engine-driven systems with 12V DC powered pumps to allow anywhere, anytime use. Sprayer...
  6. 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
  7. Pumptec

    High pressure pump

    80685

    $491.84

    SimPlE, SinglE PlungER DESign Uses the most effi cient pump technology and created the simplest design. Pumptec pumps get more work done with less energy. DiRECt-to-motoR mounting The Pumptec pumps mount directly to the motor end bell eliminatin...

    115v Learn More
  8. General Pump

    EK 3plex Plunger 23.6hp

    KE20A

    $7,500.85
    A heavy-duty industrial pump with a nickel-plated, spheroidal cast-iron manifold.
    • Pump Dimensions: 18.2" x 17.5" x 7.3"
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thread: 1" BSP-F
    • Discharge Port Thread: 3/4" BSP-F
    • Sh...
  9. Pumptec

    High pressure pump

    80022

    $461.54
    High pressure low volume electric pump. Pump has 2 sets of inlets and outlets.

    POPULAR MODEL IN CARPET CLEANING INDUSTRY FOR 200PSI EXTRACTORS. With '02 nozzle flow is .71GPM.205V-095M5380547

  10. 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
View as List Grid

Items 11-20 of 276

Set Descending Direction
per page