What Is a Ball Valve? Structure and Function in Piping Systems

Introduction

Ball valves are one of the most widely used valves in industrial piping systems. They are known for their simple structure, reliable sealing performance, and quick operation.

Ball valves are commonly used in water systems, gas pipelines, chemical plants, and many other industrial applications.

What Is a Ball Valve?

A ball valve is a quarter-turn valve that uses a spherical ball with a hole through its center to control fluid flow.

When the valve handle is turned 90 degrees, the hole in the ball aligns with the pipe to allow flow. Turning the handle another 90 degrees blocks the flow completely.

Key Components of a Ball Valve

Ball
A spherical component with a bore that allows fluid to pass.

Valve Body
The outer casing that holds the internal components.

Seats
Sealing components that prevent leakage.

Stem
Connects the handle or actuator to the ball.

Advantages of Ball Valves

Ball valves offer several benefits:

Quick opening and closing
Excellent sealing performance
Low pressure drop
Simple operation

Conclusion

Ball valves are reliable and efficient valves widely used in industrial piping systems for on-off flow control.

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