self-priming positive displacement pump Articles

  • Losing system pressure - positive displacement pumps

    In a positive displacement pump, flow is directly related to RPM and pressure by the restriction of the flow in the discharge line. Once the system pressure is set, any change in flow will result in a change in pressure. These changes in flow can occur from certain conditions in the pump inlet line, the pump itself, the pump drive or in the pump discharge line. Pump Inlet The ...


    By Cat Pumps

  • Some Chemical Applications Require the Range of a Positive Displacement Pump

    Chemical manufacturing includes complex processes. In fact, chemical manufacturing processes are so intricate that, typically, several unit operations exist within an overall process. These may include cracking, distillation and evaporation, gas absorption, and scrubbing and solvent extraction. Within these operations, transferring is the process of transporting fluid from one point to ...


    By MOUVEX

  • The small pumps with a big attitude

    Cardev International Ltd supplies a comprehensive range of environmental products commonly used in the maintenance and on-site recycling of industrial cutting fluids and oils, particularly hydraulic and turbine oils. Cardev’s standard range of OSCAR rigs incorporate several sizes of Mono M range pumps, including 110 volt systems for industrial recycling, and 24 volt systems mounted on the back of ...


    By NOV Mono - Mono Pumps Ltd

  • Fully automatic prime/re-priming system handles air/liquid mixtures with ease

    Cornell’s Redi-Prime® system addresses the fundamental requirement of customers to have pumps that are easy to operate, re-prime under lift condition, and eliminate carry-over issues of liquids when priming the pump.  Repriming becomes important when entrainment (due to a snore condition) or vortexing occurs. The vacuum pump is always running, so when the liquid ...


    By Cornell Pump Company

  • Large Diameter Impellers Make Trash Pumps More Versatile

    The introduction of these impellers allow for a higher range of discharge pressure. Pumps are available in many types—diaphragm, positive displacement and progressive cavity—but the most common is a centrifugal pump. Centrifugal pumps have an impeller that spins, transferring energy to the fluid by centrifugal force and directing the water to the discharge point within the ...


    By Griffin Dewatering

  • Peristaltic Pumps play key role in rectifying the pH balance of mine water

    After decades of uncontrolled industrial (mining) activities, water supply is under serious threat. Studies show that acid water levels in the country's mines are rising at a staggering average rate of 0.59 m/day. The water situation is in fact threatening the population’s survival. At the heart of resolving this problem are the treatment of water and wastewater. This article looks at ...

  • Peristaltic Pumps - A lot more than just heavy duty

    By design, the peristaltic pump is ideal for the dependable handling of abrasive, corrosive, viscous, high density and high solid content fluids. It thrives in those applications where other types of pump fail. Water and waste water industries, mining and chemical processing are all prime markets for this workhorse. But being equal to the tough demands of these applications is far from its only ...

  • Whole Life Costs and pumping Technology – Peristaltics Increasingly Out on Top

    Untitled Document Whole life costs are playing an ever-more important role in pump selection by the water and wastewater industry. Interestingly, energy use is no longer the ...

  • Case Study: Sandy Balls Leisure Centre: Sewage Treatment Plant

    A customer with a tough application for a Positive Displacement RAS (Return Activated Sludge) Pump was experiencing high maintenance with the existing submersible unit, requiring lifting of the pump every 3-4 weeks, usually due to solids blockage. NOT a pleasant task regularly lifting from raw sewage! Triangle replaced it with a self-priming Boerger Rotary Lobe Pump. A useful feature of the ...


    By Triangle Ltd

  • The Municipal Water & Sewage Treatment Sector

    The best reason for the use of Albin Pump Hose pumps in this industry is the low maintenance of the pump. This industry readily accepts an average hose life of 1.500 - 3.000 hours in continuous duty and this hose life will provide much lower maintenance costs and repair time than with other pumps. Basic Pump Requirements For operation in an automatic system the following would ...


    By Albin Pump SAS

  • KLa Systems Offers “Retrofit Opportunities”

    KLa Systems is in a unique position to assist industries in meeting the challenges of production expansion and optimizing energy usage in their wastewater treatment facilities. Our Slot Injector system can easily retrofit all types of diffuser systems including conventional jet aeration systems within existing tanks and basins. Higher (15-60%) oxygen transfer rates can be achieved using the ...


    By KLa Systems, Inc.

  • Kerr-McGee dredging case study

    Application:Clean and dredge paint pigment residuals Dredge Used: LWT 7MAU Series Pit Hog™ Dredge Project Summary: Electric manned automated dredge with 3 Krebs cyclones with a capacity of 2,100 gpm, magnetic flow meter to monitor pump performance, slurry density meter to maintain consistent percent solids by varying traverse speed, and ...

  • Winning the Future: Grand Ronde Solar Projects Reduce Pollution, Cut Costs

    Challenge: Situated on nearly 12,000 acres in the heart of Western Oregon’s scenic coastal range, the Confederated Tribes of the Grand Ronde Community of Oregon has a strong connection to the earth and nature and a deep commitment to environmental stewardship. Landless from 1954 until 1983 when the Grand Ronde Restoration Act returned a portion of its land base, the Tribe has ...


    By US Department of Energy

  • Multilevel Groundwater Assessment of Confining Unit in a Bedrock Sequence near Sarnia, Ontario

    Untitled Document INTRODUCTION Two sites in southern Ontario were studied through instrumentation ...


    By Solinst Canada Ltd.

  • Methods of Water Purification

    This article is excerpted from 'Pure Water Handbook' published by Osmonics®, Inc. of Minnetonka, Minnesota USA and is printed with permission of Osmonics, Inc. Water treatment can be defined as any procedure or method used to alter the chemical composition or natural 'behavior' of a water supply. Water supplies are classified as either surface water or groundwater. The majority of public or ...

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