Glossary Category:

Venturi

A term used to define a shaped restriction in a pipe where a flowing fluid accelerates under pressure to maintain a constant volumetric flow the same as at other locations in the pipe.

Vertical

A term used to indicate when something such as a pole is at 90 degrees to a horizontal surface.

Vice versa

A term used to indicate that it may be possible for a condition to be in two separate but opposite states at different times.

Viscous

A term used to indicate when a fluid is not thin but is thick and resists flow.

Visqueen vapor barrier

A vapor barrier of poly ethylene plastic. The vapor barrier is usually black when used under concrete slabs.