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Dictionary


pres'sure-vac'u•um valve"



Pronunciation: (presh'ur-vak'yOO-um, -yOOm), [key]
a valve for relieving a sealed tank of any pressure or vacuum exceeding acceptable limits.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

pressure-treatedpressure welding

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