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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.
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  1. General Pump

    MSN 3Plex Plunger 106.3hp

    MSN45

    $51,885.93
    MSN Triplex Plunger Pump. A heavy-duty industrial pump with a 316 stainless steel manifold and 431 stainless steel valve plate and seat for high pressure chemical applications.
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thr...
  2. General Pump

    MSN 3Plex Plunger 106.3hp w/ gearbox

    MSN4518R

    $54,627.30
    MSN Triplex Plunger Pump. A heavy-duty industrial pump with a 316 stainless steel manifold and 431 stainless steel valve plate and seat for high pressure chemical applications.
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Por...
  3. Oberdorfer Pumps

    Close Coupled Bronze Rotary Gear Pump

    N999RM-F07

    $1,241.50
    Bronze gear pump mounted to a 1725rpm 1/3 HP motor. Pump has relief valve.

    Features N999 Series:

    • Compact design eases installation and use in limited space areas.
    • Construction is bronze and stainless steel wetted components.
    • Close toleran...
  4. General Pump

    MSN 3Plex Plunger 106.7hp

    MSN40

    $51,885.93
    MSN Triplex Plunger Pump. A heavy-duty industrial pump with a 316 stainless steel manifold and 431 stainless steel valve plate and seat for high pressure chemical applications.
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thr...
  5. General Pump

    MSN 3Plex Plunger 106.7hp w/ gearbox

    MSN4018R

    $54,627.30
    MSN Triplex Plunger Pump. A heavy-duty industrial pump with a 316 stainless steel manifold and 431 stainless steel valve plate and seat for high pressure chemical applications.
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thr...
  6. Oberdorfer Pumps

    Bronze Pedestal Gear Pump w/ relief valve

    N7000RS17

    $1,657.00
    Bronze Pedestal Gear pump with relief valve and FKM mechanical shaft seal. Often used as a oil pump on large ships to pre-lube the bearings or where high temperature liquid is being pumped.
    • Gear pumps are positive displacement pumps. Each sha...
    FKM Mech Seal Learn More
  7. General Pump

    MSN 3Plex Plunger 107.2hp

    MSN36

    $51,885.93
    MSN Triplex Plunger Pump. A heavy-duty industrial pump with a 316 stainless steel manifold and 431 stainless steel valve plate and seat for high pressure chemical applications.
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thr...
  8. All-Flo Pumps

    Conductive Nylon AODD Bolted Model

    C038-SQY-TT3T-SF0

    $1,092.69
    Diaphragm pump, Conductive Nylon. AODD pumps, Although the air powered pump eliminates ignition from electrical motors and internal combustion engines when pumping flammable fluids there is still the possibility of static electrical charge buil...
    3/8" Learn More
  9. General Pump

    MSN 3Plex Plunger 107.2hp w/ gearbox

    MSN3618R1-5

    $54,627.30
    MSN Triplex Plunger Pump. A heavy-duty industrial pump with a 316 stainless steel manifold and 431 stainless steel valve plate and seat for high pressure chemical applications.
    • Max. Inlet Pressure: 45 PSI
    • Max. Fluid Temp.: 140ï½°F
    • Inlet Port Thr...
  10. Oberdorfer Pumps

    Close Coupled Bronze Rotary Gear Pump

    N999Q-32-J46

    $1,283.10

    Features N999 Series:

    • Compact design eases installation and use in limited space areas.
    • Construction is bronze and stainless steel wetted components.
    • Close tolerance design allows for consistent performance
    • Helical gears for quiet operation.

    Pu...

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