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This issue sponsored by Spitzer and Boyes, LLC

September 2019

Positive Displacement Flowmeters: The Big Four (Part 1)

Last month, I described an application where a solenoid valve slaps open sending a pressure wave of water toward the flowmeter, which is standing empty. The shock wave hits. The meter internals, if they aren't shattered from the blow, begin to spin. The meter moves extremely rapidly, as the metering chambers fill up with air, water, and then the air is pushed out of the meter by the velocity of the flow. The meter sends a stream of pulses to the process controller. What's wrong with this picture? click for more...

Incinerator Fume Flowmeter Replacement

My previous article described the existing installation and operation of a fume flowmeter for an incinerator. The new installation is more complex and uses fumes to replace up to 80 percent of the combustion air, but the fume flow can drop to near zero flow in approximately 5 seconds after the unit shuts down or trips. click for more...

Coriolis Mass Flowmeter Sizing

The plant manager wants to relocate a 2-inch Coriolis mass flowmeter measuring zero to 200 kilograms/minute of water that is no longer needed to another part of the plant to measure the same flow of chocolate. Will this work? If not, what problems do you anticipate? click for more...



In addition to over 35 years of experience as an instrument user, consultant, and expert witness, David W Spitzer has written over 10 books and 250 articles about flow measurement, level measurement, instrumentation, and process control. David (with Walt Boyes) is the author of seven Consumer Guides to various industrial flow and level technologies. David teaches his flow measurement seminars in both English and Portuguese.

Spitzer and Boyes, LLC provides engineering, technical writing, training seminars, strategic marketing consulting, distribution consulting, and expert witness services worldwide, and can be contacted at +1.845.623.1830 or www.spitzerandboyes.com.


ISSN 1538-5280
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