FLOW CONTROL AND MEASUREMENT WHITE PAPERS AND CASE STUDIES
With the introduction of new measurement technologies and the myriad of performance claims from sale literature, it’s easy to lose sight of the important elements that an effective flow meter offers no matter what technology is used. Long known for their longevity, reliability, and long term performance, Venturi meters provide the widest variety of measurement options in piped systems for liquids, gas, steam, and mixed media of any metering technology – all while offering the highest degree of traceable accuracy. By Primary Flow Signal, Inc.
How Larger Flow Meters Speak Volumes
As the price of water continues to increase, errors in flow measurement are magnified for distribution networks that transport large volumes of water. These systems often incorporate meters over 48 inches in diameter, which can be a challenge to calibrate. Learn how choosing the proper calibration method can ensure the most accurate measurements. By Richard Lowrie, Water and Wastwater Industry Specialist, KROHNE, Inc.
How Meter Nozzles Can Deliver Accuracy In Municipal Treatment Facilities
The United States Environmental Protection Agency claims there are approximately 155,000 public water systems in the nation and the public drinking water systems regulated by EPA provide drinking water to 90 percent of Americans. To put this in perspective, a family of four statistically uses 400 gallons of water daily. By Jeff Smith, Primary Flow Signal
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FLOW CONTROL AND MEASUREMENT
FLOW CONTROL AND MEASUREMENT
Flow measurement can be defined as quantification of the movement of water in a given channel. Flow can be measured either by determining the displacement and/or Velocity of the water. Water meters usually control measure and display total usage in cubic meters, on either mechanical or electronic registers.
Flow can be divided into two main flows which are: Open channel flow and Closed conduit flow. Flow is controlled by use of valves at intervals to either to slow down, allow faster flow or completely shut down the flow. Some water meters usually perform both the function or making readings and controlling flow while others just conduct measuring only.
Meters for reclaimed water contain special lavender register covers show that the water is non-potable. Velocity-type meters measure the velocity of flow through a meter of a known internal capacity. The speed of the flow can then be converted into volume of flow for usage. Since Multi-jet meters are usually very accurate in small sizes they are normally used for residential and smaller commercial uses. Turbine meters are not as accurate as jet meters and displacement meters at low flow rates.
A compound meter is used where high flow rates are necessary. Magnetic flow meters are a velocity-type water meter, except that they use electromagnetic properties to determine the water flow velocity. In water treatment plants, measurement and control devices can be installed in the following locations: within interceptors or manholes, the head of the plant, in the force mains that lead to main tanks etc. Automatic Meter Reading has compelled producers to build pulse or encoder registers to provide electronic output for radio transmitters, reading storage devices, and data logging devices.
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WASTEWATER FLOW CONTROL MEASUREMENT SUPPLIERS
ABB Measurement Products
ABB is the best partner throughout the entire water cycle. From extraction and treatment, to distribution and the management of the wastewater process, ABB supplies an extensive range of reliable measurement products and solutions. With the most expertise in water and wastewater applications worldwide, ABB is the partner to help customers choose the optimal measurement solution precisely meeting their requirements.
Ashcroft Inc. Ashcroft Inc. is a leading manufacturer of commercial and industrial pressure and temperature measurement instrumentation. Best known for the product brand names Ashcroft®, Heise® and Weksler®, Ashcroft Inc. offers a full line of mechanical and electronic instruments. Serving a wide variety of industries and applications, the product offering includes thermometers, switches, transducers, transmitters, instrument isolators and calibration instruments
Emerson Process Management, Rosemount Analytical
Rosemount Analytical, one of Emerson’s leading process management companies, is the world’s premier supplier of technologies for liquid and combustion analysis, process analysis, gas measurement, and emissions monitoring. With an 80-year legacy of manufacturing liquid and gas analytical products that have revolutionized the process industries, we continue to provide real, quantifiable analytical solutions.
Endress+Hauser has more than 50 years of experience in the areas of Municipal Wastewater, Industrial Wastewater, and Portable Water.
Fluid Components International
FCI is a world-leading manufacturer of mass flow meters, flow switches and level switches for use in industrial and commercial applications. Rugged designs and packaging with International approvals for hazardous location installations, FCI products are used in industry's most demanding applications
Flygt -- A Xylem Brand
Flygt - A Xylem Brand is the originator of the heavy duty electrical submersible pump. We have been manufacturing high quality heavy duty equipment since 1901, and continue to provide support, expertise and the highest quality products available for pumping and mixing contaminated and abrasive liquids.
GF Piping Systems
George Fischer Piping Systems is the sales, marketing and logistics organization for Engineered Piping Systems, Valves and Actuation, and Signet Instrumentation in the Americas. In addition, GFI provides our customers with a wide range of value add capabilities through the Custom Products group
JCS Industries Inc.
JCS Industries, Inc. was founded in 2002 as a product development company charged with developing an alternative to the current vacuum feed liquid doser technology for a worldwide manufacturer of water and waste treatment equipment. After one year of design and two years of beta testing, JCS developed the Model 4100 Automatic Vacuum Liquid Feeder.
We are committed to providing you with KROHNE's 83+ years of flow and level measurement expertise at your facility.
Mass Transfer Systems Since 1984, Mass Transfer Systems (MTS) has been supplying jet aeration and mixing systems to industries and municipalities throughout the world. The majority of our product consist of "engineered systems" for biological and other waste treatment processes and a variety of industrial mixing applications
McCrometer is a global leader in providing flow measurement solutions including differential pressure (DP), electromagnetic, and propeller technologies. McCrometer’s flow measurement solutions are found in thousands of installations worldwide including Municipal/Industrial Water & Waste, Agriculture and Turf Irrigation, Institutional Facilities applications and many more
Swan Analytical USA
Swan Analytical Instruments is a leading manufacturer of high quality on-line analytical instruments for water analysis in applications such as high purity water, steam, condensate, cooling water, potable water, and effluent.
YSI, a Xylem brand
YSI offers a full line of environmental monitoring and sampling instruments, systems, and services for water quality and water velocity data. Our multiparameter instruments, aquaculture monitoring systems, handheld sampling instruments, and complete line of SonTek products can be incorporated into any of your monitoring or sampling applications.