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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.

Positive Displacement Pumps

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Items 1 to 10 of 912 total

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  1. Marco Mate

    Oil Transfer Pump UP14/Oil

    M164-520-12

    Oil transfer gear pump, 12V DC.4.0 GPM Self-priming electric pump with helical bronze gears for transferring lubricating oils and viscous liquids. Nickel-plated brass body and stainless steel shaft. Particularly suitable for draining engine sumps ...

    4gpm 290GPH 12v
  2. Oberdorfer

    N994 12v DC Gear Pump

    N994H-H75

    12v DC Gear Pump. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

    12 volt Gear ...

    1HP 12VDDC
  3. Marco Mate

    Oil Transfer Pump UP6

    M164-080-12

    12v DC Oil transfer gear pump. GPM Self-priming electric pump with helical bronze gears for transferring lubricating oils and viscous liquids. Nickel-plated brass body and stainless steel shaft. Particularly suitable for draining engine sumps wit...

    4gpm 290GPH 12v
  4. Oberdorfer

    Rubber Impeller Bronze Pump

    405M-04N26

    Oberdorfer rubber (flex) impeller pump with solid cast bronze housing. Close coupled Rubber Impeller Pumps are made of high quality bronze for maximum corrosion resistance. The rubber impeller is mounted on a separate stainless steel shaft which i...

    115v 1HP 1" ODP
  5. Oberdorfer

    Rubber Impeller Bronze Pump

    405M-04M35

    Oberdorfer rubber (flex) impeller pump with solid cast bronze housing. Close coupled Rubber Impeller Pumps are made of high quality bronze for maximum corrosion resistance. The rubber impeller is mounted on a separate stainless steel shaft which i...

    115v 3/4HP 1" TEFC
  6. Oberdorfer

    Gas Rubber Impeller Pump

    405MG-03UGY

    Gas Engine Oberdorfer rubber (flex) impeller pump with solid cast bronze housing. Close coupled Rubber Impeller Pumps are made of high quality bronze for maximum corrosion resistance. The rubber impeller is mounted on a separate stainless steel sh...

    3HP engine 1"
  7. All-Flo

    H Series Sanitary & Hygienic

    H050-THL-PTTT-G70

    1/2” (13mm) HDPE/ Polished 316L Stainless Steel. Suction lift capability may vary depending on the construction materials and application parameters. The range is from 16.4 feet dry to 30 feet in a primed condition. Tri Clamp Click here to ...
    Sanitary
  8. All-Flo

    PP Air Operated Double Diaphragm Pump

    C150-FPP-SSPE-B70

    PolyPro Air AODD Pump 1.5". 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...
    PE-15
  9. All-Flo

    Nylon Air Operated Double Diaphragm Pump

    A025-SPK-TTKV-S70

    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"
  10. Oberdorfer

    Bronze Rotary Gear Pump 1"

    N990H-T47

    1" Close coupled bronze rotary gear pump with motor. 1.5HP

    • 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 mo...
    1-1/2HP 115/230v 1"
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Items 1 to 10 of 912 total

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