water valve Articles

  • Rotork IQ3 actuators selected for Brazilian water treatment plant upgrade

    The upgrade at the Rio Manso WTP at Brumadinho in the south east of Brazil involved the building of an additional filter plant, the replacement of obsolete actuators on existing plant and the introduction of a Profibus digital control network. ...


    By Rotork

  • Hutchinson Finds a Quick Reliable Fix to Cavitation Damage

    The Hutchinson Kansas Water Plant gets its water from twenty wells. The water is pumped out of the wells and into a reverse osmosis water treatment center to purify and ensure safe drinking water. At that point, a portion of the water is taken off from the main line, run through the reverse osmosis system and then mixed back with the well water.  This is used to lower the total dissolved ...


    By Singer Valve Inc.

  • UNTHA waste shredder for one of most state-of-the-art MPS systems in Europe

    MPS Betriebsführungs GmbH, based in Berlin, has been using a UNTHA XR3000R waste shredder since early October. The waste treatment plant, which is jointly operated by the ALBA Group and Berliner Stadtreinigung (Berlin’s municipal waste management company), specialises in the production of alternative fuels, and forms part of one of the most modern plants for mechanical-physical ...


    By UNTHA Shredding Technology

  • Valves in Water System of Heating Air Condition

    Common valves in water system of heating air condition include gate valve, globe valve and butterfly valve.   Gate vale For its moderate length, rotary adjusting rod and good regulating performance, gate valve is widely utilized in large caliber pipes.   Globe valve Globe valve is suitable for small caliber pipes for its long length, ...

  • Insertable Valve Network Provides OngoingSolution to Water Loss

    Orange Cove, CA - As the only city in Fresno County that is completely dependent on surface water, the City of Orange Cove had 40% unaccounted for water loss when Bill Little, former City Manager returned to Orange Cove to address the community’s growing water problems... “Our goal is to reduce unaccounted for water loss in Orange Cove down to 3% - 5%,” explained Little. “In a city with an old ...

  • Reduction in water losses in water distribution systems using pressure reduction valves

    Water loss is a phenomenon frequently observed within water distribution systems (WDSs), that is considerably worsened by an excessive pressure throughout the network. As an alternative option to pipe replacement, the use of pumps working as turbines, throttle control valves (TCVs), or pressure reduction valves (PRVs) can be used to reduce leakage. For a preassigned number of these devices, ...


    By IWA Publishing

  • Valuing Global Valves

    Control valve solves flow control & pressure challenges Donnacona, Quebec, Canada, is an industrial town just west of Quebec City. The town’s water treatment plant was built in 1969 and has since undergone three major retrofits: new high-pressure pumps and an electrical upgrade in 1995; a filter bottoms change in 2000; and a river water intake upgrade in 2005. The plant includes ...


    By Singer Valve Inc.

  • Giving Valves a Workout

    Manual valve exercising is a time-consuming process, and one that poses risks of injury to employees and damage to valves. Valve-exercising technology is designed to automate the process, so that employees do not subject themselves to the strain of turning large or stuck valves, and so that only appropriate levels of torque are applied to valves. Automationhas the added advantage of enabling easy ...


    By E.H. Wachs

  • Healthy Control Valves

    A simple maintenance routine can help ensure trouble-free valve operation. Whether the control valve in your system is the first one that has required maintenance or if you are experienced with maintaining multiple valves in your system, some simple guidelines can help keep them operating at optimal performance. Physically checking all valves at least every 12 weeks is important, assuming that ...


    By Singer Valve Inc.

  • Dealing with Cavitation in Control Valves

    Cavitation consists of rapid vaporization and condensation within a liquid. When local pressure falls to vapor pressure (approximately 0.25 psi / 0.018 bar absolute for cold water), vapor bubbles are formed and when these bubbles travel to an area of higher pressure, the bubbles collapse with phenomenal force and great localized stress. It is the violent collapse of these vapor bubbles near valve ...


    By IWA Publishing

  • Flush Mounted Valve Exposed

    The “Other Guys'” answer to standing water??  The flush mounted valve. The “Other Guys'” answer to standing water is the Flush Mounted Valve.  This is a second valve that is installed adjacent to the primary valve and flush with the bottom of the insert allowing for complete drainage. As seen ...

  • Asset management in the water industry - the valve actuator`s perspective

    Sector: Water & Effluent Treatment Category: Electric Actuators, Control Networks, Services Products: IQ3 Standard, IQ Insight 2, Pakscan, Retrofit The water and effluent treatment industries have not been slow to recognise the benefits of effective asset management resulting from the gathering and analysis of accurate and relevant data ...


    By Rotork

  • Bringing Life To The Dead – How Halifax Water Unlocked The Value Of Valve Inoperability

    Wachs Water Services recently gave the Canadian municipal water sector an impressive demonstration of how their unique approach, field experience and mechanical advantage could coax non-functioning valves back to operational life. Halifax Water recently found itself in a jubilant mood after freeing up a significant amount of dollars originally earmarked for valve replacement within its ...


    By Pure Technologies

  • Abha water utility comes out on top with automated control valves

    Abha is a small modern city in the fertile mountains of southwestern SAUDI ARABIA. Its cool summers make it a popular destination for tourists, but in general the population hovers around 250,000. The city has a new reservoir on top of a hill that releases water through 6 km of piping down to its main Noaman reservoir. The top tank is 100 meters higher than the lower tank. This makes for a great ...


    By Singer Valve Inc.

  • Implementation of pressure reduction valves in a dynamic water distribution numerical model to control the inequality in water supply

    The analysis of water distribution networks has to take into account the variability of users' water demand and the variability of network boundary conditions. In complex systems, e.g. those characterized by the presence of local private tanks and intermittent distribution, this variability suggests the use of dynamic models that are able to evaluate the rapid variability of pressures and ...


    By IWA Publishing

  • Valve innovation drives ion technology

    A NOVEL multiport distribution valve is at the heart of a new ion exchange system that reduces plant operating costs and capital expenditure by improving liquid–resin contact efficiency. The patented IONEX process can be used for resource recovery and purification in a wide range of industries, as well as water demineralization. Ion exchange systems are already used extensively for water ...


    By PuriTech Ltd

  • the installation instructions on duckbill check valve

    Straight-lift check valve should be installed in horizontal pipelines, vertical lift check valve and bottom valve is usually installed in a vertical pipeline, and the media bottom-up flow. Swing Check Valve mounting location is wrong restrictions, usually installed in horizontal piping, but can also be installed in the vertical pipe or dump material pipeline. ...

  • Basic operation of a Cycle Stop Valve

    Automatic pump control methods are described as a pump system that automatically delivers water when a tap is opened, and automatically stops the pump after all taps are closed. A variety of pump control methods have been used in the past. The Cycle Stop Valve replaces: Variable Frequency Drives (VFD’s) or “Constant Pressure Pumps”. Large pressure ...


    By Cycle Stop Valves, Inc.

  • Have You Missed a Valve Checkup?

    Let’s face it: Few people enjoy going to the doctor for routine exams — but it’s important. Routine visits help make sure you’re in good shape, and highlight things you can do to be even healthier. As you schedule your annual trip to your physician, don’t forget that valves need checkups, too. In fact, control valves need a checkup every 12 weeks. In our latest ...


    By Singer Valve Inc.

  • Cavitation damage at Yarra Valley Water, leads to the purchase of a Single Rolling Diaphragm Valve with Anti-Cav trim

    The Challenge: Yarra Valley Water needed to prevent the cavitaion caused by extreme pressure drops that was destroying their control valves.  The current system had 3 valves trying to manage the fluctuating pressure, but was not working. The Result: By replacing the 50mm valve with the 150mm SRD and Anti-Cav, not only is cavitation eliminated but the stability is so good that ...


    By Singer Valve Inc.

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