Valve

Mechanism that controls the volume or direction of flow can be closed, partially open, or fully open.

VCP

Vitrified Clay PipeA long tube of clay, concrete, steel, metal, wood, etc., for conveying water, gas, oil or other materials.

VCT

Vitrified Clay Tile or Vitrified Clay Tile Pipe

Velocity Head

For water moving at a given velocity, the equivalent head through which it would have to fall by gravity to acquire the same velocity.

Virgin Soils

Soils which have not previously been excavated.