The ball valve is a flow control device that uses a hollow, perforated and pivoting ball to control the flow of liquids through it. The handle is flat when the flow is open and is perpendicular when the flow is closed.
The ball valve is a flow control device that uses a hollow, perforated and pivoting ball to control the flow of liquids through it. The handle is flat when the flow is open and is perpendicular when the flow is closed.