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  • Positive Displacement Pump and Turbine Pump Attributes to Consider for Liquid-Based Temperature Control (.pdf)
    Temperature Control. Scott Pratt, Thermo Fisher Scientific, Laboratory Equipment Division, Temperature Control,. Newington, NH, USA. Key Words: Abstract. Rotary vane Positive Displacement. • Pressure variations (pump. So how does this relate to. • Positive displace-. (PD) pumps may be the most. pulsations
  • A REVIEW OF THE ROTARY PRESSURE FILTER FOR THE
    (by the speed of the drum). The. slow rotation also results in much lower maintenance and energy costs. BHS-Filtration Inc. Page 2 of 12. Tel: 704.845.1190; Fax: 704.845.1902. Charlotte, North Carolina 28270. Website: www.bhs-filtration.com. Positive displacement washing or counter-current washing
  • Rotary Lobe Pumps
    Rotary lobe pumps are positive displacement pumps that use rotating lobes to direct flow. Lobe pumps are similar to gear pumps in operation in that fluid flows around the interior of the casing. Rotary lobe pumps are frequently used in food applications because they can process solids without
  • 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
  • Pump Basics
    ; displacement; mechanism; cylinders, and pressure. Reciprocating pumps convert rotary motion to linear motion. Pump speed in rpm determines the pumps output volume for any given combination of cylinder bore and piston stroke. Positive Displacement pumps are used to move liquids or compress gases
  • Peristaltic Pumps in the Food Industry
    , reduced downtime and lower maintenance costs. Peristaltic pumping is the fastest growing pump technology in the world, displacing more complex and higher maintenance positive displacement (PD) pumps as the pump of choice for food processing. Peristaltic pumps are inherently valveless and sealless and have
  • Vacuum and Pressure Handbook: Vacuum Pumps
    in the vacuum levels. 70. As with air compressors, the principle types of positive displacement vacuum pumps. are the piston, diaphragm, rocking piston, rotary vane, lobed rotor, and rotary screw de-. signs. The basic mechanics of each are described in Section 11. The remarks below cover. aspects
  • 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