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Boiler- & Burner-Related Glossary Terms
Trying to learn your way around your boiler? These terms are a great place to start.
There are currently 9 names in this directory beginning with the letter V.
variable-area flow meter
A meter that maintains a constant differential pressure and allows the flow area to change with the flow rate.
variable-speed drive (VSD)
A motor controller used to vary the frequency of the electrical signal supplied to an AC motor in order to control its rotational speed. Also called a variable-frequency drive.
An internal element in some types of deaerators that condenses steam and uses the heat produced to warm the feedwater.
A flow restriction device consisting of a fabricated pipe section with a converging inlet section, a straight throat, and a diverging outlet section.