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  • When to Use PD Pumps (Copyright Viking Pump, Inc.)
    When to use a centrifugal or a Positive Displacement pump ("PD Pump") is not always a clear choice. To make a good choice between these pump types it is important to understand that these two types of pumps behave very differently. Flow rate versus pressure By looking at the performance chart
  • Pump Basics
    illustrated with a similar curve, which clearly demarcates the relation between the liquid pumped per unit time and the increase in pressure. But curves for different pump categories have very different characteristics. Positive-displacement pumps, for example, show a flow rate virtually independent
  • Introduction to Peristaltic Pumps
    or siphoning. o Pumped Media Only Contacts Tube. o No Clogging. o Hygienic- No Contamination. o Can Run Dry For Limited Periods. o No Valves Or Seals. o Positive Displacement. o Minimal parts wear, other than tube. WHAT IS UNIQUE ABOUT VERDER. One of the early unique features of the Verder concept
  • Peristaltic Pumps Provide Option for Ethanol Producers
    the differences in the various types of pumps. An Overview of Positive Displacement Pumps. Unlike constant-speed, solids-handling centrifugal pumps, which are predominantly used in transferring fluids, positive displacement (PD) pumps were created to meter or transfer hard-to-handle fluids like
  • Fluid Transfer Pumps
    Fluid-handling or transfer devices are not basically concerned with the modulation or transfer of power, but only with the movement of fluid. Two major types of fluid-transfer pumps are positive-displacement (either bulk-handling or metering pumps) and nonpositive-displacement (centrifugal
  • Flavor Pump for Blending Applications
    , is self-priming, and can run dry without incurring damage. The pumps can be cleaned in-line at full velocity without the intrusive bypass of most other positive displacement pumps. Dismantling and further cleaning are not required. The pumphead loading process is comprised of three simple steps: 1) sliding
  • Medical Device Link . Pump Suppliers Boost Performance, Not Prices
    for a specific volume, the pump provides an accurate dispense each and every time, regardless of internal variations or machine-to-machine changes." Diener Precision Pumps Ltd. A company that supplies various types of positive displacement metering pumps to medical device OEMs has more than 30 years
  • Tank Farm Running at Full Capacity Utilizing Blackmer GX Series Pumps
    liquids without product degradation. Unlike other positive displacement pump technologies that suffer from volumetric inefficiency as they wear, GX Series pumps use self-adjusting vanes that allow the pumps to maintain near original volumetric performance levels even over time. About Blackmer

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