Ball valve facts for kids

A ball valve cut open to show its parts: 1) body, 2) seat, 3) floating ball, 4) lever handle, 5) stem

A ball valve is a special type of valve. It has a round ball inside with a hole through its center. These valves are used to control the flow of liquids or gases. You can find them in many places, like in your home's plumbing or in industrial pipes.

When the valve's handle is turned one way, the hole in the ball lines up with the pipe. This allows water, gas, or other fluids to flow through easily.

When the handle is turned the other way, the ball rotates. This makes the solid part of the ball block the pipe. It stops the flow of liquid or gas completely.

A ball from a titanium ball valve. This is the part that controls the flow.

How Does a Ball Valve Work?

Ball valves are very simple to use. They work by rotating a ball that has a hole drilled through it. This ball acts like a gate for the fluid.

Opening the Valve

When you turn the handle, the ball inside spins. If the handle is turned so the hole in the ball faces the same direction as the pipe, the valve is open. Fluid can then pass straight through the valve.

Closing the Valve

To close the valve, you turn the handle 90 degrees. This makes the solid side of the ball block the pipe. No fluid can pass through when the ball is in this position. This simple action makes ball valves very effective.

Why Are Ball Valves Important?

Ball valves are popular because they are reliable and durable. They can quickly shut off the flow of liquids or gases. This makes them useful in many different systems.

Common Uses of Ball Valves

You might see ball valves in your house. They are often used for water lines, like under sinks or for outdoor faucets. Industries also use them for controlling chemicals, oil, and gas. Their quick shut-off ability is very important for safety.

Benefits of Using Ball Valves

• Quick Operation: They can open or close with just a quarter turn of the handle.
• Long-lasting: Ball valves are known for being very durable and lasting a long time.
• Good Seal: When closed, they provide a tight seal. This prevents leaks.
• Low Maintenance: They usually don't need much looking after once installed.

Images for kids

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  An automated 3-way ball valve. These can be controlled by machines.

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  Different balls used inside alloy ball valves.

See also

In Spanish: Válvula de bola para niños