Von Experten für Experten

5 Factors to Consider When Choosing a Valve Choosing the correct valve is essential for safe, reliable, and efficient system operation. This article breaks down five key factors to consider when selecting a valve, including valve function, process media, pressure and temperature ratings, flow requirements, and actuation or installation constraints. Understanding how these factors interact helps engineers and system designers avoid premature failure, improve control performance, and ensure long-term reliability across industrial and HVAC applications.

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Parallax Error Even small mistakes in measurement can have big consequences. Parallax error — a simple observational issue — is common with analog gauges and dials, but it’s preventable. Explore what parallax error is, where it shows up in industry, and how modern solutions from DwyerOmega help eliminate it.

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What are Electromagnetic Flow Meters? A magnetic flow meter (mag flow meter) is a volumetric flow meter which does not have any moving parts and is ideal for wastewater applications or any dirty liquid which is conductive or water based.

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6 Widely Used Level Measurement Technologies Measuring and monitoring fluid levels accurately and precisely requires choosing the correct methodology for the target medium and vessel.

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Ultrasonic Level Sensors in Action By installing level sensors, operators can be proactive and monitor liquid levels - ensuring environmental regulations associated with the design and operation are consistently met.

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How to Locate a Water Leak Using an Ultrasonic Flow Meter When a single conduit line in a complex configuration of pipelines is compromised, it can be challenging to locate the precise point where the leak is occurring.

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Flow of Paper Stock A customer in the paper industry wanted to measure flow of paper stock pulp on a 250mm SS line with an average flow of 120-150 l/s and a pulp temperature of 45°.

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Sanitary Precision Flow Measurement for Microbreweries All microbreweries need the ability to measure the liquid flow of their product in a manner that is sanitary and meets FDA regulations.

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An Introduction to Flow Meters As the name implies a Flow meter is an instrument for monitoring, measuring, or recording the rate of flow, pressure, or discharge of liquids or gasses.

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What is a Mass Flow Meter? A thermal mass flow meter measures the flow rate of gas mass based on the convective heat transfer of a heated surface to the flowing fluid.

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What is a Coriolis Flow Meter and How Does it Work? A Coriolis flow meter is a type of mass flow meter. It is designed differently and works differently than thermal or differential mass flow meters.

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What is a Vortex Flow Meter? A vortex flow meter is a flow measurement device best suited for flow measurements where the introduction of moving parts presents problems.

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Flow Meter Tutorial So you want to measure flow? The answer would seem to be to purchase a flowmeter.

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Technical Principles of Valves Solenoid valves are used wherever fluid flow has to be controlled automatically. They are being used to an increasing degree in the most varied types of plants and equipment.

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Mechanical Flow meters Discussed in this chapter are various types of mechanical flow meters that measure flow using an arrangement of moving parts,

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Differential Pressure Flow meters The calculation of fluid flow rate by reading the pressure loss across a pipe restriction is perhaps the most commonly used flow measurement technique in industrial applications

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RF/Capacitance Level Instrumentation Capacitance level detectors are also referred to as radio frequency (RF) or admittance level sensors. They operate in the low MHz radio frequency range, measuring admittance of an alternating current (ac) circuit that varies with level.

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All About Flow Meters Measuring the flow of liquids is a critical need in many industrial plants.

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What is a Variable Area Flow Meter? Variable area flow meters are simple and versatile devices that operate at a relatively constant pressure drop and measure the flow of liquids, gases, and steam.

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An Introduction to Venturi Flow Meters, Flow Nozzles, and Segmental Wedge Elements Venturi tubes are available in sizes up to 7 inches and can pass 25 to 50% more flow than an orifice with the same pressure drop

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What is an Orifice Plate Flow Meter? The orifice plate flow meter is commonly used in clean liquid, gas, and steam services. It is available for all pipe sizes but it is very cost-effective for measuring flows in larger ones (over 6 inches diameter).

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An Introduction to Pitot Tubes Although the pitot tube is one of the simplest flow sensors, it is used in a wide range of flow measurement applications such as air speed in racing cars and Air Force fighter jets

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Specialty Level Switches Thermal, vibrating, and optical level switches are specialty devices developed to solve specific level detection problems.

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Electronic Flow meters While the flow measurement technologies discussed in this chapter--magnetic, vortex, and ultrasonic--are neither exclusively nor exhaustively electronic in nature, they do represent a logical grouping of flow measurement technologies.

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Monitoring Juice Level in a Vessel using Transmitters and Transducers The Role of Flow and Level Transmitters and Pressure Transducers in the Monitoring of Juice Level in a Vessel

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Applying Ultrasonic Level Sensors in Cooling Tower Water Basins Cooling towers are heat exchange systems that require precision sensors to ensure water basin liquid levels are monitored.

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Hybrid Ultrasonic Flow Meter Application Helps Ensure Accurate Enzyme Injection Learn how flow meters helped an Oil company achieve accurate measurements of the water flow rate and total flow.

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Flow Measurement in a Return Activated Sludge Line Keene Waste Water Treatment Plant uses a secondary treatment process called activated sludge, a process which converts non-settable substances into a biological floc

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The importance of wind tunnel testing in the lab Failure rates for many electronic components rise with temperature.

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Doppler vs Transit Time Ultrasonic Flow Meters Ultrasonic flow meters are non-intrusive devices that use acoustic vibrations to measure the flow rate of liquid...

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What is a Thermal Mass Flow Meter? Thermal mass flow meters measure the mass flowrate of gases and liquids directly.

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Lessons about Positive Displacement Flow Meters Positive Displacement flow meters are the only flow measuring technology to directly measure the volume of fluid that passes though the flow meter.

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Accurate Airflow Measurement Calculating flow rates through ducts, pipes, hoods and stacks (collectively called ducts for our purposes), has never been difficult.

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What is an Ultrasonic Flow Meter? An ultrasonic flow meter (non-intrusive Doppler flow meter) is a volumetric flow meter which requires particulates or bubbles in the flow.

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What are Anemometers? An anemometer is an instrument used to measure the speed or velocity of gases either in a contained flow, such as airflow in a duct, or in unconfined flows, such as atmospheric wind.

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An Introduction to Level Measurement Integral to process control in many industries, level measurement sensors fall into two main types. Point level measurement sensors are used to mark a single discrete liquid height–a preset level condition.

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