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DAVID W SPITZER'S E-ZINE (January 2020)

TECHNICAL AND MARKETING SERVICES
FOR INSTRUMENTATION SUPPLIERS AND END-USERS

The Peculiar Piping Caper by Walt Boyes

Another application I was asked about, and have mentioned before, is the 16" diameter pipe coming up out of the ground; immediately turning 90 degrees; going into a 16" v-notch valve; then a short section of straight pipe; then 90 degrees down again and into the ground. The question was where to put the (insertion, obviously) flowmeter.

Measuring Gravity Flow (Part 2) by David W Spitzer 

Three situations quickly come to mind as to where most technical people should consider stopping, taking a deep breath and thinking slowly --- operation under vacuum, measuring downward liquid flow and gravity flow.  The previous article discussed flowmeter sizing in gravity flow applications.   

Orifice Plate Flow Measurement System Performance by David W Spitzer

A differential pressure transmitter with an accuracy specification of 0.05 percent of span calibrated in the shop and set for 0-100 differential pressure units will be used to measure the flow through an orifice plate.  What is the approximate performance of the orifice plate flow measurement system at 20 percent of flow?    

ABOUT SPITZER AND BOYES, LLC

In addition to over 40 years of experience as an instrument user, consultant and expert witness, David W Spitzer has written over 10 books and 450 articles about flow measurement, level measurement, instrumentation and process control. David teaches his flow measurement seminars in both English and Portuguese.

 

Spitzer and Boyes, LLC provides engineering, technical writing, training seminars, strategic marketing consulting and expert witness services worldwide.

 

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