Flow Monitoring Articles

  • How a Specialized Automatic Control Valve Solved Flooding

    The Colombian area of Antioquia creates much of its clean power from hydropower plants along the Guadalupe River. The Guadalupe IV hydroelectric plant generates power with three vertical axis turbines that discharge water below the river level. To prevent flooding, however, the plant needed a solution that ensured the ejector ...


    By Singer Valve Inc.

  • Maintaining a pressure reducing valve: 5 things to check

    Like your car, your body and nearly every appliance you own, control valves require regular maintenance to continue working efficiently. However, due to budget and time constraints, we don’t always give our valves the TLC they need to perform at their best. Unfortunately, ignoring pressure reducing valves can mean serious ...


    By Singer Valve Inc.

  • Advantages of Using Flow Meters to Reduce Pressure Drop

    Plant operators rely on plant air pressures to maintain properly working equipment and systems. One of the most common problems affecting processing plants that utilize compressed air systems is the ability to maintain reliable air pressure throughout the distribution system. Insufficient air pressures may be due to undersized distribution piping, but it’s more commonly found that the cause ...


    By FLO-CORP

  • Accurate Flow Monitoring for Billing Applications - Passaic Valley Sewerage Commissioners, Newark, NJ - Case Study

    The accQmin velocity profiling flow meter from Teledyne Isco, Inc. is key to accurate measurement of flow for billing purposes where primary devices such as flumes can be overwhelmed at times of increased flow. Newark, NJ The Passaic Valley Sewerage Commission (PVSC) operates one of the country’s largest treatment plants for the wastewaters of northern New Jersey, working to ...


    By Teledyne Isco

  • Replacement of Defective EMF - Case Study

    Application Steel cast pipe with 700 mm diameter Full filled Existing EMF in pipeline defective Definition of tasks Cost-efficient installation of the new flow measurement Defective EMF should not be removed if possible (costs) No interruption of running processes ...


    By NIVUS GmbH

  • Automatic control valves: how to assess ACV applications

    As automation and computers claimed a foothold in the operation and control of reservoirs and elevated water tanks, the industry moved the valve control from mechanical automatic control valves (ACV) to actuated butterfly and ball valves. The primary reason? Actuators can be controlled by SCADA systems, which have been almost ...


    By Singer Valve Inc.

  • Case study - Discharge measurement deep within a cave

    Research is currently being conducted in the Hessenhau cave, located in southern Germany. The cave is the deepest known within the Swabian Alps at 144m (472 ft) and has a stream running through it that connects it to other caves within the area. Discharge measurements were taken in different parts of the cave with the OTT MF pro electromagnetic current meter. Reaching the bottom of the cave ...

  • Case study - Discharge measurement at the river

    Due to the seasonally strong weed growth and low flow during low water periods the measurement of water level and flow at the measurement site "Kleinraschuetz“ was rather distorted. It had to be corrected by putting in additional manpower for manual measurements. Therefore it was decided to modernize the station completely and to install a stationary discharge measuring system. The ...

  • Flow Rate Measurement in Full Pipes Using the Transit Time Method

    Particularly in large diameters the relevance of water volume measurement is growing. The challenge with cooling water or fresh water processes is to generate accurate flow recordings or to document and to control individual consumptions and withdrawal quantities. Flow detection, however, particularly in large diameters is highly demanding. In such cases the transit time measurement thanks to its ...


    By NIVUS GmbH

  • 10 Reasons why you should continuously monitor low temperature and liquid chemical sterilants for worker safety

    1. Sterilant chemicals are highly toxic Low temperature and liquid chemical sterilants are designed to kill all microorganisms including resistant spores and if they were not toxic, they would not be effective in sufficiently high concentration to destroy all microbial life including the chemically resistant sporicidal forms of certain ...


    By ChemDAQ, Inc.

  • How a contract research lab advanced its polymer characterization capabilities

    Realizing the Advantages of Ultra-High-Performance Size Exclusion Chromatography Compared to GPC Intertek is a global provider of quality and safety services designed to help businesses improve products, assets and processes, overcome market constraints and reduce risks. From auditing and inspection, to testing, training, and certification, Intertek enables customers to meet end ...


    By Waters Corporation

  • Distribution of mean flow and turbulence statistics in plunge pools

    When the capacity of the spillway of a dam is exceeded for a given flood, overtopping occurs; in such cases potentially dangerous hydrodynamic actions and scour downstream of the dam need to be foreseen. Detailed studies of jets impinging in plunge pools from overflow nappe flows are scarce. This work addresses plunge pool flows, and compares numerical results against our own experiments. The ...


    By IWA Publishing

  • How To Put Your Building on a Water Diet in 2017

    As you prepare for the new year, why not commit your building to the same resolution as millions of American men and women: a diet! Every year, millions of gallons of water, one of our most precious resources, is wasted through undetected leaks, over irrigation and faulty equipment. Since most building managers and owners only check usage when the bill comes, your water usage is likely to ...


    By WaterSignal

  • Controlling the Flow Capacity of a Metering Pump

    Since a metering pump is usually a positive displacement pump there are two possible ways of controlling the flow capacity. The first one is by adjusting the volume of liquid displaced per stroke of the pump and the second is by adjusting the speed of the strokes. I. Stroke Length – control the displacement volume per stroke II. Speed of Strokes per minute Stroke Length ...


    By Aquflow

  • Tech Note: Flare Gas Measurement Innovation; Retain Flow Metering Accuracy Even if Gas Composition Changes

    It’s a fact oil wells almost always produce natural gas along with the petroleum. Nine times out of ten, the excess gas (typically hydrocarbons) is flared off or simply vented as-is during upset conditions in the process. The environmental impacts of “flaring” this excess gas into our atmosphere has resulted in government regulations like 40 CFR Part 60 Subpart OOOO (also ...


    By Sierra Instruments, Inc.

  • Leakage control of multi-source water distribution system by network partition and optimal pump schedule in China

    The main aim of an optimal schedule of conventional multi-source water distribution system is to reduce the energy consumption rather than minimizing the network leakage. This research is on the premise of meeting water demand, pressure and water quality considering the states of valve opening and closing, the states of pump opening and closing, and the pump speed as solution space. The ...


    By IWA Publishing

  • Cavitation Reactors

    By combining the developments in acoustics, hydrodynamics and chemical kinetics, a new promising device is entering the market: the cavitation reactors, used for processing of suspensions, emulsions and for intensification of chemical processes in solutions. These devices are can be used either separately (in laboratory test-benches) or in industrial mixing processes. In today’s market, two ...


    By GlobeCore GmbH

  • Safe Landings Whatever the Weather: Lufft Sensors on Airports

    Pilots, air traffic controllers and airport operators do their best to make air travel safer and more efficient. Sometimes, however, flight security depends on external factors we can hardly influence. This especially refers to risky weather conditions: Strong winds, icy cold or strong precipitation can have serious consequences. On average, 23% of all aircraft accidents and 68% of canceled ...

  • Modeling the effect of weather conditions on urban water demand in multiple network areas: a practical approach to improve monthly and seasonal operation

    The current paper is aimed at studying the influence of weather conditions on urban water consumption using available continuous flow measurements from existing district metered areas (DMA), belonging to different Portuguese water distribution systems. A three-step methodology was followed: Data processing; DMA segmentation in terms of billed consumption and socio-demographic characteristics; ...


    By IWA Publishing

  • Direct Mass Flow or Volumetric: The Thermal Flow Meter Technology Advantage!

    In today’s world where everyone is watching the bottom line, you need high performance, cost-effective instrumentation—and capillary thermal mass flow meters and controllers have been proven to meet this criteria in a wide range of process applications. Thermal mass flow technology is an industry standard for mass flow control of gases because it measures flow directly, at the ...


    By Sierra Instruments, Inc.

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