What is the principle of ball valve?

The principle of a ball valve is based on the use of a spherical ball with a hole or port in the center that is mounted within the valve body. The ball is designed to rotate within the body of the valve, controlling the flow of fluid or gas by either aligning the port with the inlet and outlet openings to allow flow, or rotating to block flow by closing off the port.

The ball valve operates using a quarter-turn mechanism, which means that it only requires a 90-degree turn of the lever or actuator to fully open or close the valve. This makes it a quick and easy-to-use valve that is ideal for applications where fast flow control is required.

The ball within the valve body is usually made of materials such as stainless steel, brass, or PVC, while the valve body can be made from a variety of materials such as plastic, stainless steel, or carbon steel, depending on the specific application.

Ball valves are typically used in applications where high flow rates, high-pressure or high-temperature conditions are present, such as in the oil and gas industry, chemical processing, and water treatment. They offer a tight seal, low operating torque, and high durability, making them a popular choice for a variety of industrial and commercial applications.