Water Loss Articles

  • Dynamic Flow Balancing Valves

    Dynamic flow balancing valves are also known as self-operated flow control valves, self-operated balancing valves, constant flow valves, and automatic balancing valves. It automatically changes the drag coefficient according to changes in system operating conditions. Within a certain pressure difference range, the flow rate can be effectively controlled to maintain a constant value, that is, when ...


    By ZhengFeng Valve Group

  • ME40 丨OceanAlpha Delivers Innovative USV Solution to Mining Industry - Case Study

    OceanAlpha’s autonomous bathymetric survey boat ME40 for hydrographic survey has been applied to the mining industry for tailing dam surveys, in addition to its common application in lakes, rivers, reservoirs and oceans. All you need to do is set up the survey way-points and the boat will go automatically with GPS navigation and acquire online bathymetric data. ...


    By OceanAlpha Group Ltd.

  • WHAT CAUSES INTER-COOLER BLOCKAGE?

    At present, most domestic heavy truck engines are air-to-air cooling and turbocharging technology. As an important component of Turbocharged engine, inter-cooler is not unfamiliar to many people. The function of the hyundai tucson inter-cooler is to make the air passing through the supercharger enter the cooling process first and keep the temperature and pressure of the supercharged air entering ...

  • Reducing cost of water usage analysis – Case Study

    Large regional water companies, like California American Water Company, which services the central coast of California, have already invested in high performance flow measurement instrumentation to better understand its usage. Most Americans receive water service from community water and wastewater utilities. It is less known that private water companies own nearly 16% of the nation’s ...


    By Sierra Instruments, Inc.

  • Case study: MODEL: EWB3.1690 - WATER COOLED LIQUID CHILLER FOR ENGINE TESTING

    Project Requirements Cooling Request: 552 kW Inlet/Outlet Evaporator Fluid Temperatures: -15/-20°C Condenser Water Temperature In/Out: 30 / 35°C Refrigerant: R449A Number of unit: 2 Destination: Romania Process Fluid: 45% ethylene ...


    By Hitema International

  • Experience return Pegasus NC – Case Study

    SIE Renom Chalaronne wanted to reduce losses in drinking water and increase its network performance, a goal which became increasingly critical in light of the Grenelle II Law. This law stipulates that network yield must be greater than 85% in urban areas and between 65% and 85% in rural areas. SIE Renom Chalaronne was able to use a combination of Hydreka products to optimize the pressure in ...


    By Hydreka SA - A Halma Company

  • Detecting network problems before customers do

    In a perfect world, water networks have 100% uptime and adequate pressure. In reality, customers experience loss of pressure, water quality issues, and outages. In under-invested networks, this is even more frequent. ...


    By i2O

  • Singer`s specialty PRV regulates Bangkok pressure - Case Study

    Their Challenge With water loss up to 30 per cent, Metropolitan Water Authority (MWA) in Bangkok, Thailand, installed pressure reducing valves throughout the city and its suburbs. The valves controlled nighttime pressures accurately, preventing leaks and breaks. However, in some areas, high demand during the day caused the pressure to drop to 10 psi (0.68 bar) or less. Without sufficient ...


    By Singer Valve Inc.

  • Singer PRV reduces Malaysia`s water loss - Case Study

    Their Challenge In Malaysia’s southern state of Johor, SAJ Holdings is responsible for sourcing raw water as well as the treatment and distribution of potable water. With an average water leakage rate of 30 per cent, SAJ Holdings wanted to find a way to reduce nighttime pressures, thus reducing leakage and major line breaks. Our Solution Reducing ...


    By Singer Valve Inc.

  • Water travels mountainous terrain with the help of control valves - Case Study

    The Challenge The newly constructed Zhijin power plant in China’s Guizhou province gets its water from the Hongjiadu reservoir and transports it 8.1 ...


    By Singer Valve Inc.

  • Singer PFC valve saves Brazil water - Case Study

    Their Challenge Sergio Mendonça was troubled. How could he reduce the municipality’s water losses by controlling the pressure and flow of its major pipelines? One source of São Bernardo do Campo’s water supply is 120 metres above four residential suburbs. During the day, the water pressure was sufficient due to the high demand. At night, with reduced customer ...


    By Singer Valve Inc.

  • 1 - 20% Decrease in Hagihon`s NRW & Continuous Decline in Pipe Bursts Case Study

    Results from a recent study by HaGihon indicate a substantial improvement in NRW (Non-Revenue-Water) in the DMAs in which Aquarius Spectrum’s system was installed and continuously operated during a period of two years (2014-2015). NRW was reduced in those neighborhoods by 20%, mainly due to locating and fixing hidden leaks and repairing malfunctioning equipment located by Aquarius. In ...


    By Aquarius Spectrum

  • Global: Increasing Efficiency with Permanent Leakage Monitoring - Case Study

    Abstract In this paper information from Water Authorities in the USA, Europe, Middle East and Australia that have purchased permanent monitoring leak detection equipment is reviewed and the findings are presented in a structured format that covers the following: Justification for permanent monitoring Evaluating the different product offerings Selecting ...


    By Gutermann AG

  • Israel/Haifa: Cutting water loss by more than half in a rigorous process - Case Study

    Introduction Haifa is Israel’s third-largest city with a population of over 250,000. It is in the very north of Israel, close to the border to Lebanon and beautifully situated on the shores of the Mediterranean Sea. Mei Carmel is a public corporation founded in 2010 as a spin-off from the municipal government with the aim to improving the public service level to the residents of ...


    By Gutermann AG

  • Yorkshire Water uses AQUASCAN TM2 for trunk main leak detection - Case Study

    Introduction After initial meetings about suspected leakage and NRW losses with Craig Needham and Piotr Kozeil from Yorkshire Water a trial was arranged to use the GUTERMANN AQUASCAN TM2 correlator. An initial location on an 18” Cast Iron trunk main was identified from Longwood Service Reservoir feeding ...


    By Gutermann AG

  • Complex city structure in Taipei - 13 leakages detected - Taipei, Taiwan - Case Study

    In 2014, Leif Koch, DHI, and Ramböll partnered with the Taipei Office of the Trade Council of Denmark and the Taiwan Water Corporation for a pilot project to reduce water loss in Taiwan. These organizations sent a team of leakage engineers and operators to work at a test site on Chijin Island. ...


    By Leif Koch A/S

  • Unique Danish partnership against global water losses - Leakman, Denmark - Case Study

    Nine Danish partners have formed a consortium with the objective to demonstrate the use and effect of integrated high-end solutions within Leakage Management based on Danish technologies and know-how. The nine partners represent leading technology providers, consultants, water utilities and the Technical University of Denmark. ...


    By Leif Koch A/S

  • Gas Safety in the Laboratory

    Modern laboratories use a number of gases as part of their daily operations. This blog details two of the most common methods of laboratory gas supply, and their associated safety risks and benefits. A number of gases are used in laboratories to support various applications such as Chromatography (GC and LC-MS) Spectroscopy, ELSD and Sample Preparation, to name just a few. Helium, hydrogen and ...

  • Antalya’s ASAT find more than 100 leaks with ZONESCAN ALPHA – Case Study

    Introduction ASAT is the General Water Directorate for the Antalya region in Turkey. The water company was established as a public authority for all water and wastewater services connected to the Metropolitan Municipality of Antalya. ASAT serves approximately 2.4 million people living within an area of 20,909 km2. The water comes from dozens of deep wells and transported to the customers ...


    By Gutermann AG

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