Centrifugal Pumps Articles

  • 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 S.r.l.- 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 ...

  • 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

  • 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 ...

  • What is a slurry pump

    Talking about slurry pump, we see slurry first then next is pump, so let’s start with slurry. Slurry is a kind of liquid with solids, mostly its specific gravities greater than 1. The solids size may vary from a few micrometers, often referred to as microns, up to hundreds of millimeters and the solids may settle below a ...


  • Magnetic driven pumps in Molten sulphur service case study

    MD51EFDKR-3U88/06C with NORD SK12XZ-140TC and Reliance 2 HP, TEFC-XE motor Pumping Molten Sulphur is most challenging. Sulphur temperatures must be controlled within a 120-155o C range. Outside this temperature sulphur solidifies. Sulphur has a distinct odour and is highly corrosive in the presence of moisture. Where leakage from common packed style pumps was unacceptable, a ROTAN ...


    By DESMI A/S

  • Screw Pumps Stockholm - Case Study

    The order for renovating three screw pumps is not remarkable, but the location of Danviken Pump station however is unique: in a cave in the middle of the city of Stockholm, near the Royal Palace and City Hall. Landustrie installed three screw pumps with a diameter of 2.60 meter. Screw length 9.9 m - capacity 9720 m3/h - power 160 kW. The screw pumps are supplied with eco-friendy ...


    By Landustrie Sneek BV

  • 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

  • Dan-Balt A/S - Pan European Terminals PLC

    Dan-Balt A/S - Pan European Terminals PLC DESMI NSL centrifugal pumps for heavy fuel oil transfer at the Dan-Balt A/S terminal in Aaberaa, Denmark. Pan European Terminals PLC with locations in Aabenraa, Denmark, has 160,000 m3 of storage strategically located close to Pan European’s existing ports but also close to Amsterdam / Rotterdam / Antwerp (ARA), the Kiel Canal ...


    By DESMI A/S

  • Novozymes

    Novozymes Highly Efficient and Reliable DESMI Pumps for Pharmaceutical Company - DESMI Pumps used as cooling pumps in Novozymes Biotechnology Tianjin. Novozymes has invested in additional enzyme granulation capacity at its Chinese Tianjin plant. As one of Novozymes’ three strategic production bases around the world, the plant is capable of ...


    By DESMI A/S

  • Pumps in lubricant production

    A major business segment at Hermann Bantleon GmbH is the development, production, and sales of lubricants. At its plant in Ulm, Germany, this company starts with high-quality base oils and produces both universal and customized lubricants according to its own formulas. Customized products are often the best way to meet special requirements in cutting and non-cutting production processes. They can ...


    By ALLWEILER GmbH

  • Frequency pressure regulation in water supply systems

    In water supply systems, pressure management in most cases is proven to be the most cost-effective activity related to water loss control. As an advanced method of pressure control, it is possible to use variable frequency drives for centrifugal pump control. Pressure regulation can be performed with constant pressure or with proportional pressure control. The application of proportional ...


    By IWA Publishing

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you