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GLOSSARY
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YOUR COMPLETE GUIDE TO VALVE TERMINOLOGY
Our comprehensive guide to valve industry terminology is a valuable resource, whether you’re learning about the industry for the first time or refreshing your knowledge.
NACE
National Association of Corrosion Engineers.
NDE
Non-Destructive Examination. A collective term used to describe non-intrusive examination techniques such as radiographic and ultrasonic examination.
NOISE
May arise from vibration, cavitation or aerodynamic flow through the valve.
NORMALLY CLOSED
See air-to-open
NORMALLY OPEN
See air-to-close
