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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.
VALVE
A device that dispenses, dissipates or distributes energy in a system.
VALVE BODY
See body.
VALVE FLOW COEFFICIENT
See Cv.
VALVE PLUG
See closure member.
VAPOUR PRESSURE
A pressure at which, for a given temperature, vapour bubbles form in the liquid.
VENA CONTRACTA
The location where the cross-sectional area of the flow stream is at its minimum size, where fluid velocity is at its highest level, and where fluid pressure is at its lowest level. The vena contracta normally occurs just downstream of the actual physical restriction in a control valve.
