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 1-10 of 54

Set Descending Direction
per page
Page
  1. All-Flo Pumps

    Nylon Air Operated Double Diaphragm Pump

    A025-SPK-TTKV-S70

    $584.79
    Nylon Air AODD Pump 1/4". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Replaces RDD-025 Models available in PP, PVDF, Nylon, Conductive Nylon, ...
    1/4" Learn More
  2. General Pump

    T 63 Triplex Plunger 4.3HP Solid Shaft

    TX1512S17

    $568.10
    TX Series 63, Triplex Plunger Pump. Solid Shaft.
    • Flex coupling and bell housing available for direct drive
    • Oversized bearings for long life
    • New generation seal system for longer life
    • Large, lightweight connecting rods
    • Forged brass manifold with ...
  3. General Pump

    T 63 Triplex Plunger 5.3 Solid Shaft

    TX1812S17-5.3HP

    $458.85
    TX Series 63, Triplex Plunger Pump. Solid Shaft.
    • Flex coupling and bell housing available for direct drive
    • Oversized bearings for long life
    • New generation seal system for longer life
    • Large, lightweight connecting rods
    • Forged brass manifold with ...
  4. General Pump

    TP 51 Triplex Plunger 6.7hp

    TP2526J34

    $508.30
    TP Series 51, Triplex plunger pump, hollow shaft, flanged for direct couple to Gasoline Engines. New, over-sized connecting rods for ultimate crankcase performance. Forged brass manifold with an exclusive lifetime warranty. Ideal for all genera...
  5. General Pump

    TP 51 Triplex Plunger 8.5hp

    TP2533J34

    $508.30
    TP Series 51, Triplex plunger pump, hollow shaft, flanged for direct couple to Gasoline Engines. New, over-sized connecting rods for ultimate crankcase performance. Forged brass manifold with an exclusive lifetime warranty. Ideal for all genera...
  6. General Pump

    TT 51 Triplex Plunger 2.2hp

    TT901

    $462.30
    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...
  7. General Pump

    TT 51 Triplex Plunger 2.9hp

    TT9071EBF

    $496.80
    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...
  8. General Pump

    TT 51 Triplex Plunger 3.5hp

    TT941

    $470.35
    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...
  9. General Pump

    TT 51 Triplex Plunger 3.8hp

    TT2028EBF

    $493.35
    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...
  10. General Pump

    TT 51 Triplex Plunger 4.8hp

    TT2035EBF

    $493.35
    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...
View as List Grid

Items 1-10 of 54

Set Descending Direction
per page
Page