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Posts Tagged ‘orifice plate’

Sizing and Specifying Orifice Plate Flowmeters

Posted in Flow on Thursday, June 27th, 2019. No comments yet
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An Emerson whitepaper, Fundamentals of Orifice Meter Measurement, shares the history of tried-and-true differential pressure (DP) measurement across an orifice plate (orifice plate flowmeters) to measure flow rate, which dates back to the end of the 1700s. The first recorded use of an orifice device for fluid measurement was in 1797 by Giovanni B. Venturi, […]

Measuring Flow on Fluid Streams

Posted in Flow on Thursday, April 17th, 2014. One comment so far
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According to an ISA presentation given by Process Automation Hall of Fame member, Greg McMillan, the most common measurement device is the differential pressure (DP) transmitter. It is most commonly used in level and flow measurement. Measuring the differential pressure across an orifice plate is the common way to measure flow. Wikipedia provides a quick […]

Required Pipeline IDs for Flow Measurement Pressure-Temperature Compensation

Posted in Flow, Temperature on Wednesday, August 7th, 2013. 3 comments so far
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I received a call the other day and wanted to capture the question and answer for other people Googling around with similar questions. The question: What are the required distances in pipeline inside diameters (I.D.) upstream and downstream for a differential pressure (DP) flowmeter for the pressure and temperature sensors doing pressure-temperature (PT) compensation? I […]

Electronic Flow Management System Design Fundamentals

Posted in Remote Automation on Wednesday, February 22nd, 2012. 2 comments so far
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In the Emerson Exchange 365 community, I saw a new thread, Fundamentals of Electronic Flow Meter Design, Application & Implementation. It included a download link to a whitepaper with the same name by Emerson’s Jim Griffeth. Jim is a member of the Remote Automation Solutions team. I wanted to highlight some of his thoughts from […]

Custody Transfer Flow Measurement

Posted in Measurement on Wednesday, November 10th, 2010. No comments yet
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If you have custody transfer applications in your plant and you’re not already an expert on the subject, there’s a great Control Engineering magazine article, Custody Transfer: Flowmeter as Cash Register. It’s written by Emerson’s Emerie (a.k.a. Butch) Dupuis and Gerard Hwang, both whom I’ve known and worked with for many years. Custody transfer defines […]