centrifugal pump Articles

  • Submersible Pumps vs. Self-Priming Centrifugal Pumps

    When selecting a centrifugal pump for bypass work, the first consideration should be NPSHR by the pump. Neglecting the NPSHR of the pump is the single most common mistake when choosing a self-priming or priming assisted pump. A function of the pump design requires part of the 33.9 ft (14.7 in.) available as further defined in this article. A centrifugal, and in a way submersibles, require part ...

  • VFD for pumping systems

    Pumping systems account for nearly 20% of the world's electrical energy usage. In some process plants, the VFD for pumps and fans together account for between 50% and 80% of the total electricity used. Very rarely have I come across pumps operating with fully open discharge valves. The same is the case for fans with dampers. ...


    By Variable Frequency Drives

  • Pump Performance Checklist

    Keeping your pump in shape will help reduce costs and boost profits! Cut fuel consumption, reduce replacement parts costs and minimize pumping time on every job! A PUMP THAT LETS YOU DOWN when you need it most causes obvious losses of time and money. Not so obvious, but every bit as costly, are losses you can incur with pumps that operate at less-than-peak efficiency. A pump ...


    By Gorman-Rupp Co.

  • 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

  • DESMI’s Magnetically Powered Pumps Seal the Deal

    For companies pumping dangerous or expensive chemicals, leaks can endanger both personnel and the bottom line. Hermetically sealed, magnetically powered pumps are the state-of-the-play answer. The list of potentially dangerous or simply-too-expensive-to-lose substances being pumped from one part of an industrial process to another somewhere in the world is long. Take isocyanates, for example. ...


    By DESMI A/S

  • 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

  • Bypass Pumping System - How to choose the right pumping system to securely meet your objectives in a cost effective manner

    Many bypasses are similar in appearance and name, but it’s their subtle differences that require close attention to fully understand component performance parameters. To determine the right pump, we first need to understand many different aspects of the physical conditions of the application – Flow, Lift/Pump Strength, and Distance. FLOW – is the quantity of liquid being ...


    By Aquatech Dewatering Company

  • 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

  • Gorman-Rupp On Line Hydraulics Training Courses

    Gorman-Rupp's on line training courses are designed to familiarize the user with the workings of a pump as well as centrifugal pump hydraulics and system hydraulics. Areas of focus include how to: Compute the Total Dynamic Head or how to read a performance chart Determine the system head curve or the net positive suction head Solve many problems associated with pumps ...


    By Gorman-Rupp Co.

  • Lowara gets Presidential treatment in ‘The Land of Fire’

    The Flame Fountain, Baku Park, Baku, Azerbaijan Azerbaijan has long been called ‘The Land of Fire’ due to the visually stunning natural gas fires which blaze continuously on the hillside of the Absheron Peninsula.This has proved to be the inspiration behind the Flame Fountain sculpture which resembles a vast flame bursting from the Earth’s surface. The Flame ...


    By LOWARA - a Xylem brand

  • 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

  • How Does Fuel Stability Affect Me?

    Fuel stability is a serious concern for the diesel fuel user. The chemistry of diesel fuel instability involves the chemical conversion of precursors to species of higher molecular weight with limited solubility. The conversion process often involves oxidation of the precursors. Fuel solvency plays a role, since the development of insolubles is always a function of both the presence of higher ...


    By AXI International

  • A Dressing for Success

    What started out as a signature dish in a restaurant more than 65 years ago has today become a company with more than 400 varieties of salad dressings and sauces. When Ken’s Steakhouse began in 1941, the owners were in search of a special salad and dressing to go with their steaks. The salad dressing soon rivaled the steaks in popularity—and a new company was born. Today, the company has grown to ...


    By World Water Works, Inc.

  • Upgrading Pre-Existing DAF Clarifiers

    Whether a Mill is pursuing a facility wide directive to reduce water consumption or simply looking for better performance from a presently installed DAF clarifier, the advancements discussed in this overview offer proven techniques to optimize existing DAF system operations. Significant operational cost reductions can be achieved with DAF System Upgrades. In addition, increasing DAF performance ...


    By World Water Works, Inc.

  • 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 in the world, with ...


    By BBA Pumps North America

  • Portugese mining

    The South-West part of the Iberian peninsula is also known as the “Iberian Pyrite Belt (IPB)” as its’ soil is filled with a variety of mineral deposits. Geologically the region is very complicated and this very specific geological make-up has created the situation where various minerals can be found just below the surface. Despite the abundant mineral resources, the mining ...


    By BBA Pumps North America

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