Forbes Marshall Pvt. Ltd.

Ball Valve

A ball valve is a quarter-turn rotational motion valve that uses a ball-shaped disk to stop or start flow. If the valve is opened, the ball rotates to a point where the hole through the ball is in line with the valve body inlet and outlet. If the valve is closed, the ball is rotated so that the hole is perpendicular to the flow openings of the valve body and the flow is stopped.

Advantages of using ball valves:

• Quick quarter turn on-off operation

• Tight sealing with low torque

• Smaller in size than most other valves

Disadvantages of ball valves:

• Conventional ball valves have poor throttling properties

• In slurry or other applications, the suspended particles can settle and become trapped in body cavities causing wear, leakage, or valve failure.