low flow meter Articles

  • Netherlands’ Mobile Emergency Pumps Provide Rapid Flood Response

    The Western European nation has 20 mobile diesel-driven pumps on standby, ready to assist in national and international emergencies. One of the smallest and most densely populated countries in Western Europe, the Netherlands has nearly 10 million residents who live and work below sea level. Without active water management and primary flood defenses, ...


    By BBA Pumps

  • BBA Mobile Emergency Pumps Provide Rapid Response for Floods

    Netherlands’ Mobile Emergency Pumps Provide Rapid Flood Response In its latest edition, the North American PUMPS & SYSTEMS magazine publishes an in-depth article featuring the history and current usage of emergency mobile pumps. The Western European ...


    By BBA Pumps

  • 100 Simple Ways To Save Water

    To improve water conservation install a rain sensor, it turns off your irrigation when it rains. Use a weather-based controller. The use of smart controllers can reduce water usage 24% a year on average. Learn about available rebate programs ...


    By Jain Irrigation, Inc

  • Low Flow Groundwater Sampling Using RotaPump Inertial Lift Pump

    This article tells you how to perform low flow groundwater sampling using a portable, surface-mounted pump with no decontamination required before each use and  no chance of cross contamination between wells. An inertial lift pump moves a dedicated (stored in the well) pumping tube rapidly up and down.  A one-way valve on the bottom admits water on the down stroke and ...


    By RotaPump, Inc

  • AVFM 5.0 area-velocity flow meter monitors sewage lagoon discharge flow

    The Township of South Glengarry in Eastern Ontario discharges continuously from their 72,000 m3 sewage lagoon. But they ran into flow measurement problems when their magnetic flowmeter was unable to detect seasonal low flow rates. Operations Manager, Shawn Killoran selected a Greyline AVFM 5.0 Area-Velocity Flow Monitor because it was simple to install in a horizontal discharge pipe from the ...


    By Greyline Instruments Inc.

  • Performance of the low-emission flare

    Job report / Elbisgraben (Bale / Switzerland) The summer of 1992 had finally arrived. The 5MW low emission furnace in the district heating station Liestal was ignited, supplied with landfill gas from Elbisgraben landfill. Since then the plant has been running continuously and the comprehensive measurements taken, verify that all targets aimed at have been achieved: plant ...


    By Hofstetter BV

  • Low Cost Flood Warning Solution

    Scottish Environment Protection Agency (SEPA) Supply and installation of flood warning system Supply of Hawk XT telemetry loggers for use with tipping-bucket rain-gauges plus supply and installation of telemetered flow gauges to the SEPA west area as part of a flood warning instrumentation project. Each flow gauge was comprised of a Teledyne RDi Channelmaster H-ADCP ...

  • Discharge Measurements In Low Flow Conditions With ADC p t echnology – First Experiences In Nepal

    Low flows prevail during about nine months of the year in Himalayan rivers as a result of the influence of the monsoon climate. They account for a large portion of the annual water balance and accurate information about these flows is therefore critical for water resources planning, development, management and hydropower design. Issues that occur with the neighbouring country India are often ...


    By Teledyne RD Instruments

  • Replacement Fill Control Valves with Electronic Flow and Metering Improve Pressure, Stop Leakage and Prevent Valve Failures

    The City of Modesto, California is situated 90 miles east of San Francisco and has approximately 200,000 residents relying on 200,000 of gallons of water a day. The City needed to upgrade three water storage tanks that hold approximately 750,000 gallons each. After years of using motor operated valves to fill water storage tanks, the city recognized that there were just too many problems. ...


    By Singer Valve Inc.

  • Performance monitoring & troubleshooting with a new individual condenser tube circulating water flow and fouling (ClA/FF) meter - case study

    Introduction Midwest Generation Joliet Station in Illinois has two coal-fired units, Unit 7 and Unit 8. Roth 550 MW units are located on the Des Plaines River and have been in operation since 1963-1964. The circulating water system is a once-through system comprised of a bar rack, traveling screens, circulating water pumps and reversible condensers. The original condenser tubes on Unit ...


    By Intek, Inc.

  • New Developments in Thermal Dispersion Mass Flow Meters: In-The-Field Compensation for Changes in Natural Gas Composition

    Introduction The flow of natural gas in pipelines is often complicated by changes in the composition of the gas. The method described in this paper solves the problem of variable composition via a new four-temperature mass flow sensor. The new (low sensor feeds its measurements into the algorithms of an advanced mathematical model that includes gas properties in its calculations. The method ...


    By Sierra Instruments, Inc.

  • Wastewater Plant Relies on Thermal Flow Meter for Co-Gen Power Gas Blending Process

    The Rahway Valley Sewerage Authority (RVSA), which operates a large wastewater treatment plant in New Jersey, embarked on a green co-generation waste-to-energy project to power a portion of its operations. The plant performs primary, secondary, tertiary and sludge treatment processes in serving over 250,000 residential customers and 3000 industrial and commercial customers in a 40-plus square ...


    By Modern Pumping Today

  • A Low-Cost Electrolytic Tiltmeter for Measuring Slope Deformation

    The tiltmeter described consists of an electrolytic sensor (a glass jar containing an electrolyte and six electrodes) and a portable AC digital conductivity meter, which reads conductivity changes resulting from tilting deflections. The tiltmeter has a sensitivity of 2 to 8 min of arc/cmu (conductivity meter unit), with a measurement range of more than 45°. This tiltmeter measured earth flow ...


    By ASTM International

  • Active leakage control in low pressures - It can be done!

    Leakage and PressureWater when leaving the pipe creates an ‘energy’ and it is this energy that is transferred through the water and the pipe wall by the means of acoustic sound. This acoustic sound depending on the material of the pipe work either dissipates over a long distance or is absorbed very quickly into the pipe wall. The effect being that for metallic or hard walled pipes the sound ...


  • H-ADCP Flow Gauge Installation

    Wessex Water contracted HL to install a new flow-gauge to provide flow data on the environmental impact of abstraction upstream and downstream of a riverside borehole for public-supply. Due to the channel and hydraulic conditions at the site on the River Yeo in Somerset, HL selected a horizontal ADCP Channelmaster device from Teledyne RDi for providing accurate velocity profiles at one elevation ...

  • Scottish Water Flow Monitoring Contracts

    Scottish Water commissioned HL in 2007 to deliver two separate flow monitoring contracts to help improve the water companies understanding of the yield and low flow conditions at several water supply catchments across Scotland. One project involved the installation of reservoir level, inflow flow gauges and recording raingauge devices in nine reservoir catchments in South West Scotland. Although ...

  • NIVUS Pipe Sensor vs. Mag Meter

    The benefits of using our solution are numerous, in terms of ease of use, accuracy, cost, time and low carbon footprint so to offer a direct comparison to the usual time and cost implications of traditional Mag Meter replacement water companies typically incur significant costs namely excavation, over pumping and related downtime often making such projects even cost prohibitive. NIVUS Cross ...


    By NIVUS GmbH

  • GKN aerospace success with portable impedance meter

    The GKN site in Cowes, Isle of Wight, UK, has long experience in the design and manufacture of passive sound insulation systems for air-intakes and by-pass ducts of aircraft engine nacelles. Dr. Armando Vavalle, Technology Development Engineer from GKN reports here on impedance tests conducted with Brüel &Kjær’s Portable Impedance Meter Type 9737 for the development of such ...

  • Qdos metering pumps selected by Russian automotive plant

    After a comprehensive evaluation and trial period, the Russian plant of steel wheel manufacturer, Mefro Wheels, has opted to use the latest Qdos 30 metering pumps from Watson-Marlow Fluid Technology Group at its facility in Togliatti. Selected ahead of diaphragm metering pumps, the Qdos 30 pumps have been fully integrated into a complex process control system at the plant’s ...

  • Case study - ElectraTherm generates power from low temperature geothermal

    Site: Florida Canyon, Nevada, USA Gross Power Output: up to 75kWe Hot Water Input Range: 225-230F Hot Water Flow: 150 GPM Thermal Heat Input: 660kWt Air Cooled Condenser ElectraTherm successfully commissioned its Green Machine at the Florida Canyon Mine in Imlay, Nevada. ElectraTherm marked the occasion at Florida Canyon Mine with a commissioning ceremony including officials ...


    By ElectraTherm

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