My Cart

Positive Displacement Pumps

These pumps are often thought of as high-pressure pumps. Their positive displacement of fluid and fixed volume are the result of the fluid being mechanically moved through their pump passage on a regular cycle. This means that regardless of the system they discharge into, the pressure and volume will remain constant. The power of the driving device and its speed, limit the volume and pressure.Positive Displacement pumps:Flow rates of GPD, CC/min to 100 GPM typically.Discharge pressures of a 1 to 1000 PSI.Low speed and fixed volume per cycle, they handle very viscid fluids well.Smaller than centrifugal pumps.Quiet, do not ad much heat to the fluid, suitable for shear sensitive fluids.Diaphragm pumps can easily pass solids, stringy and fibrous foreign matter. Are made in materials from CI to Titanium and PP, PVDF and PPS engineering resins.
View as List Grid

Items 1-10 of 11

Set Descending Direction
per page
Page
  1. 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...
  2. 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 ...
  3. 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...
  4. Riverside

    3 in. Kohler Diesel diaphragm pump

    DP3KD

    $3,622.00

    Obsolete due to engine. Parts are still available.

    Diaphragm pumps are positive displacement pumps. They pump aspecific volume for each pump cycle. Diesel Diaphragm pumps move fluidsmore slowly than centrifugal pumps, but can handle mud and large...

  5. General Pump

    EZ 44 3plex 5.1hp Solid Shaft

    EZ2530SUI

    $801.00
    EZ 44 S Triplex Plunger Pump with Solid Shaft - Forged brass manifold with an exclusive lifetime warranty. This pump includes Built-in Unloader and Downstream Injector.
    • Solid ceramic plunger design
    • Flex coupling and bell housing available for di...
  6. General Pump

    T 63 Triplex Plunger 5.3HP Solid Shaft

    TX1512S17-5.3HP

    $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 ...
  7. Oberdorfer Pumps

    Bronze Rotary Gear Pump w/ motor

    N990K-X95

    $2,388.00
    Oberdorfer Close coupled bronze rotary gear pumps.
    • Bronze Construction with SS shaft
    • Helical gears for quiet operation
    • Self-lubricating carbon bearings
    • O-ring seal for max. leak protection
    • The pump drive shaft is connected to the motor shaft by ...
  8. General Pump

    TP 51 Triplex Plunger 4.9hp

    TP2520J34

    $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...
  9. General Pump

    TP 51 Triplex Plunger 4.9hp

    TP2520J34UIL

    $591.10
    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...
  10. General Pump

    Triplex Plunger 4.7hp

    TC1809E175

    $619.85
    TC Series 60, Triplex plunger pump, hollow shaft, flanged for direct couple to electric motors (NEMA-56C). Forged brass manifold with an exclusive lifetime warranty. Ideal for all general cleaning and misting applications.
    • Die cast, anodized...
View as List Grid

Items 1-10 of 11

Set Descending Direction
per page
Page