Brass ball valve is a type of valve used for controlling the flow of fluids in a piping system. It consists of a hollow brass ball with a hole through its center that can be turned using a handle or lever. When the handle is turned, the ball rotates within the valve body, either opening or closing the flow of fluid through the valve.Brass ball valves are commonly used in plumbing, heating, and industrial applications where a durable and reliable shut-off valve is required. They are popular due to their ability to handle high pressure and temperature, and their resistance to corrosion and wear. Brass ball valves are often preferred over other materials, such as plastic or stainless steel, due to their relatively low cost and ease of installation.