Centrifugal Pumps Articles

  • State of the Art Novel InFlowTech; 1-Gearturbine RotaryTurbo, 2-Imploturbocompressor One Compression Step

    *State of the Art - Novel InFlow Tech - Featured Project Development;  1-Gearturbine, 2-Imploturbocompressor: *Wordpress Blog State of the Art Novel InFlow Gearturbine Imploturbocompressor: http://stateoftheartnovelinflowtech.blogspot.mx/ ...

  • Meyer Screw Pump provides extended valve life

    A New Jersey based asphalt company approached Wm. W. Meyer & Sons seeking a solution to an issue they were having with a competitor’s airlock ability to hold a seal. The valve was lined with ceramic tiles and was supposed to have a one-year lifetime in that particular system. Unfortunately, the asphalt company realized the valves were only lasting 5-6 months at the most. The limited ...


    By Wm. W. Meyer & Sons, Inc.

  • Learn about Meyer’s Screw Pump qualities - valve life extender

    Meyer Screw Pump Provides Extended Valve Life A New Jersey based asphalt company approached Wm. W. Meyer & Sons seeking a solution to an issue they were having with a competitor’s airlock ability to hold a seal. The valve was lined with ceramic tiles and was supposed to have a one-year lifetime in that particular system. Unfortunately, the asphalt company realized the valves were ...


    By Wm. W. Meyer & Sons, Inc.

  • Raw water clarification by flotation with microbubbles and nanobubbles generated with a multiphase pump

    Raw water clarification by flotation was studied by injecting air into a centrifugal multiphase pump to generate microbubbles (MBs) and nanobubbles (NBs). Measurements of gas dispersion parameters were performed and optimal conditions were obtained using a pump pressure of 4 bar. Values showed a bubble Sauter diameter of 75 μm, an air holdup of 1.2%, a bubble surface area flux of 34 s−1 and an ...


    By IWA Publishing

  • DESMI Pumps for HVAC in Sharjah, UAE - Case Study

    DESMI has supplied a series of eight NSLH End Suction Centrifugal Pumps for the Umm Al-Qura building located in Sharjah at the Al Mamzar beach. The NSLH pumps will be providing 198 differently sized apartments with cooling. The residential building has 22 floors + 5 floors for car ...


    By DESMI A/S

  • Dutch Dewatering, a Dry Construction Site Revenue Model

    It was the spring of 2010 - during the establishment phase of BBA Pumps Inc. At the time, I went to visit several construction sites in the Netherlands to see how successful dewatering was being organized. Talk about a small country showing how great it can be! It was an absolutely eye-opening experience. The Netherlands is one of the most densely populated countries ...


    By BBA Pumps

  • Bell & Gossett introduces new hydronic pump selection criteria to maximize system efficiency

    Energy and maintenance expenses account for approximately 75 percent of the life-cycle costs of a centrifugal pump. With a growing emphasis on reducing energy consumption driven by government regulation and businesses seeking operational and financial efficiencies, HVAC system designers are seeking system solutions that maximize efficiencies while reducing costs. To address this demand and the ...

  • Horsepower on the pump curve

    Now that the head capacity relationship along the X and Y axes of the pump curve has been established in Part 1 of this series, the pump curve can be used to determine the amount of horsepower required to meet the head and capacity requirements for the job. Horsepower is a unit of power equal to 550 foot pounds per second or 746 watts. Water horsepower is the minimum power ...

  • Understanding the potential class II – Division I Safety Hazards present when operating Vertical Cuttings Dryers

    For decades, the industry standard for waste management dryers (a.k.a. vertical cuttings dryers) has relied on belt-driven sheaves. Though belt-driven systems are cost effective and relatively easy to implement, at a minimum they have represented a maintenance nuisance, at worst they represent a serious safety concern when ...


    By Elgin Separation Solutions

  • Aquantum Slides to Victory with Xylem

    When it comes to winter sports, some things are essential but nothing perhaps more so than snow and, in this instance, ice. As with many sports, conditions have to be right, with too many moisture and temperature fluctuations posing a real risk to the safety of athletes. For engineering company Aquantum, this was a primary concern for the bobsleigh track in Sochi, ...


    By LOWARA - a Xylem brand

  • Winter is coming: precautions to protect your pumps

    Now that we are running up to December, the weather in the Northern hemisphere is slowly getting colder and colder. Although Western Europe has been fortunate with a reasonably mild fall, we are expected to get a harsh winter this year, meaning that it is good to prepare for the cold season. Being pump people, this means that we need to take precautions to protect our ...


    By BBA Pumps

  • Drilling Mud in Horizontal Directional Crossing Project

    Horizontal Directional Crossing Project has a not long development in the country and even the world. But in recent years, pipeline horizontal directional crossing has been great development, large-scale construction of oil and gas pipelines across the length and across the diameter of the continuous creation of new records. In horizontal directional crossing project, the drilling mud play a very ...


  • Pump Contract for MARS Tanker. Logistic Support Ship - Case Study

    In 2010 following many months of dialogue with BMT Naval Architects the initial purchase enquiry for the supply of pumps and systems for the 4 new logistic support ships for the U.K RFA (Royal Fleet Auxiliary) was received from the Korean Shipyard DSME. DESMI participated in the tender process from the very beginning and had an open and honest dialogue with both the ...


    By DESMI A/S

  • High Quality Pumps for Den Breejen Shipyard

    Since 1947 Den Breejen Shipyard in the Netherlands has produced high-quality vessels like passenger vessels, ferries, container and dry cargo ships, tankers, work boats and pontoons. River cruise vessels and ferries are specialties of Den Breejen and many DESMI pumps are onboard. DESMI Pumps are used for the following applications: ...


    By DESMI A/S

  • Detailed dynamic pumping energy models for optimization and control of wastewater applications

    Despite the increasing level of detail in wastewater treatment process models, oversimplified energy consumption models (i.e. constant ‘average’ power consumption) are being used in optimization exercises. A new dynamic model for a more accurate prediction of pumping costs in wastewater treatment has been developed to overcome this unbalance in the coupled submodels. The model is ...


    By IWA Publishing

  • Energy Efficient Vertical Turbine Pumps Promote Sustainable Mining Efforts

    The computational fluid dynamics process advances highly efficient pump designs for difficult applications. Energy is a strategic input for the mining industry in Latin America and worldwide. Mining requires large amounts of energy, which drives up total operational costs. In Chile, mining companies consume 34 percent of the total energy produced in the country and spend approximately ...

  • Pumping at Subzero Temperatures

    Pumping of cryogenic (low-temperature) products is important for many applications, especially in the field of liquefied natural gas (LNG). The Sulzer J-unit is a special sealing system for cryogenic pumps. It was invented more than 60 years ago. The evolution of the J-unit design since then has been impressive and has now resulted in a recently filed patent application by Sulzer. ...


    By Sulzer

  • 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 ...


  • Multiphase pumps for energy-efficient water and wastewater treatment

    Multiphase pumps are unique products with outstanding features compared to conventional centrifugal pumps. The approach consists of using the pumps not only for transport of liquids but also for partial gas supply and as dynamic mixer for gas enrichment. Therefore this novel pump conception barely has ...

  • EDUR Multiphase Pumps for energy-efficient water and wastewater treatment

    Multiphase pumps are unique products with outstanding features compared to conventional centrifugal pumps. The approach consists of using the pumps not only for transport of liquids but also for partial gas supply and as dynamic mixer for gas enrichment. Therefore this novel pump conception barely has something in common with a standard pump. Even the mode of ...

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