Ball valve: Learn what a ball valve

Learn what a ball valve is, how it works, and what types of ball valves exist. Find out the parts, materials, designs, and advantages of ball valves for different fluid flow control applications. A ball valve is a flow control device which operates using a spherical ball with a hole (also known as a bore) through the middle. When the valve handle is turned, the ball rotates to align the bore with the flow path—allowing fluid to pass through. What is a ball valve and how does it work? We explain the parts of a ball valve , how they are powered and more in this article. What Is a Ball Valve? A ball valve is a flow control device which uses a hollow, perforated, and pivoting ball to control liquid flowing through it. It is open when the ball’s hole is in line with the flow inlet and closed when it is pivoted 90-degrees by the valve handle, blocking the flow.