flow meter Articles

  • Sensor Probe Insertion/Retractor Simplifies Installation of Steam Flow Meters in Hot Tapping Applications

    Accurately measuring fluid flows like steam in large ducts or pipes is a challenging application. Large ducts and pipes often have swirl or turbulent flow which makes accurate flow measurement difficult. Not to mention, installation of steam flow meters can be extremely challenging since in many cases you will need to shut off the steam flow to install the meter. This is just not ...


    By Sierra Instruments, Inc.

  • FAQ Corner – What is turndown ratio?

    We are occasionally asked for the turndown ratios of our flow meters and flow controllers.  There are varying perceptions as to what this term actually means. The turndown ratio of a Mass Flow Meter (MFM) or Mass Flow ...

  • Flow metering of grains - Case Study

    Product: ...


    By ENVEA

  • Attenuation of an ultrasonic beam by suspended particles and range of acoustic flow meters in sewer networks

    Ultrasonic flow meters are commonly used in wastewater management. Under certain circumstances, a reduction in the flow meter range may occur and cause significant error in the flow rate measurement. Attenuation due to suspended particles is one of the phenomena capable of reducing the flow meter range. The present paper examines attenuation resulting from re-suspended pond sediment over a wide ...


    By IWA Publishing

  • Non-Contacting Flow Solution for Heap Leach Mining - Case Study

    How do you measure the flow rate of a highly corrosive solution in a partially full pipe? Minera Escondida, the world's largest single producer of copper, was faced with this challenge in their heap leaching process in the Atacama Desert of northern Chile. Finding an accurate, reliable non-contacting flow meter was a difficult. But Greyline Instruments developed a unique ...


    By Greyline Instruments Inc.

  • Effect of Doppler flow meter position on discharge measurement in surcharged manholes

    Determining the proper installation location of flow meters is important for accurate measurement of discharge in sewer systems. In this study, flow field and flow regimes in two types of manholes under surcharged flow were investigated using a commercial computational fluid dynamics (CFD) code. The error in measuring the flow discharge using a Doppler flow meter (based on the velocity in a ...


    By IWA Publishing

  • HFlow 1

    Metal Powder Flowability Tester HFlow-1 powder flowability tester tests the flowability of metal powder by measuring whether the sample can flow through the 2.5mm standard funnel. The design and production of HFlow-1 Hall flow meter is based on the Chinese national standard GB / ...

  • Capillary Tube Thermal Mass Flow Meters & Controllers - A User`S Guide - White Paper

    Abstract Capillary tube thermal mass flow meters directly measure the mass flow rate of clean gases and gas mixtures in lower flow ranges. A capillary tube thermal mass flow controller adds an integrally mounted flow control valve to the flow body of the mass flow meter and bom monitors the mass flow rate and controls it to be equal to a set-point value selected by the user. ...


    By Sierra Instruments, Inc.

  • Making Ultrasonic Liquid Flow Meter Installation Easier

    Ultrasonic transit-time flow meter technology is becoming one of the most adopted technologies for accurate liquid and energy/BTU measurement. Although a major benefit of the technology is that it is non-invasive and can be clamped to the outside of the pipe, an inherent challenge with ultrasonic clamp on liquid flow meters is finding the best location to measure the liquid. This means ...


    By Sierra Instruments, Inc.

  • Air Flow Meters to Measure Air Velocity and Air Pressure

    Air flow meters are used to measure air velocity and air pressure. Depending on the type of application, air flow meters are made as hot-wire air flow meters or pocket weather flow meters, both of which can measure air velocity and air pressure. The results of measuring the air velocity can be stored in the memory of the device depending on the model. There are even data loggers for air velocity ...


    By PCE Instruments

  • How Does a Thermal Flowmeter Work?

    A thermal flowmeter works by measuring the total mass flow rate of a fluid flowing through a pipe or duct. In a thermal flowmeter’s simplest working configuration, fluid flows past a heated thermal sensor and a temperature sensor. As the molecules of the fluid flow past the heated thermal sensor, heat is lost to the flowing fluid. The thermal sensor cools down while the temperature sensor ...


    By Sierra Instruments, Inc.

  • How Does a Water Flow Meter Work?

    A water flow meter works by measuring the amount of water that passes though the flow meter. The most common mechanical types work by measuring the speed of flowing water that causes a turbine or piston to rotate. The volumetric flow rate of the water is proportional to the rotational speed. Other water flow meters include ultrasonic, magnetic and vortex flow meters. The best type of water flow ...


    By Sierra Instruments, Inc.

  • The Master of Hydrant Flow Test Equipment

    Our range of hydrant flow test equipment offers many benefits that provide data that you can rely on. Here are 10 reasons why. 1. Record ...

  • Portable Hydrant Flow Meters

    Leading the way for hydrant verification flow and pressure measurement Langham Industrial Controls strive to provide the most innovative market leading hydrant verification instrumentation. The Horizontal Standpipe Flow Meter provides unrivalled accuracy of ± 0.5% within a wide flow range. The swan neck design ensures that the AquaMasters electromagnetic sensor is always full and as the ...

  • Volume determination of activated coal for the bonding of pollutants in a waste-to-energy plant - Case Study

    Client: Waste-to-energy plant Product: Activated coal Conveyed volumes:   2...7 kg/h Conveyor mechanism: Rotary conveyor Installation location: Free fall in a DN 50-line What measuring process was used previously: ...


    By ENVEA

  • High throughput leak detection

    How can you improve leak testing precision and throughput? Various methods have historically been used to check leaks in systems and components—from bubble tests to rotameters and pressure loss detection. While these traditional methods have their place, they each have serious drawbacks in accuracy, throughput, and automation. You may be faced with more demanding situations that ...

  • Flow Tip Video: Learn Why Ease-of-Use is Critical for Flow Meter Selection

    Many times scientists and researchers spend more time setting up equipment and instrumentation for their experiments than conducting actual experiments to gather important data. This holds true for flow meters and controllers to measure and control gases to experiments. Some flow meters are very cumbersome with no display, can only measure one ...


    By Sierra Instruments, Inc.

  • Flow metering of quicklime in free fall - Case Study

    Client: Knauf Marmorit GmbH, Bollschweil (Germany) Product: Quicklime Conveyed volumes:   6...15 t/h Conveyor mechanism: Conveyor screw Installation location: Free fall after quicklime mill What measuring process was used ...


    By ENVEA

  • Core technology part 2: transit-time ultrasonic

    Since the introduction of ultrasonic transit-time flow meters, manufacturers have continually improved their measurement and signal processing capabilities. Recent advances in digital correlation transit-time technology allow customers to use this convenient, non-intrusive installation to address some of the more challenging flow applications. Ultrasonic flow meters are divided into two ...


    By Sierra Instruments, Inc.

  • Optimal meter placement for pipe burst detection in water distribution systems

    Pipe bursts in water distribution systems (WDS) must be rapidly detected to minimize the loss of system functionality and recovery time. Pipe burst is the most common failure in WDS. It results in water loss out of the system, increased head losses, and low pressure at the customers' taps. Therefore, effective and efficient detection of pipe bursts can improve system resilience. To this end, ...


    By IWA Publishing

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