what is another name for a ball valve?

1. Most Common Alternative: Quarter-Turn Valve

This is the most accurate and widely used alternative name. It describes the fundamental operating principle of the valve—it requires only a 90-degree (a quarter) turn of the handle to go from fully open to fully closed. This term is a category that also includes butterfly valves and plug valves, but "ball valve" is the most common example.

2. Descriptive or Functional Names:

• Shut-Off Valve: This is a very common term, especially in residential and plumbing contexts. When someone under a sink says, "Turn off the shut-off valve," they are most often referring to a small ball valve. This name highlights its primary function.

• Isolation Valve: In industrial settings, its main job is to isolate a section of a pipeline for maintenance or safety, hence this name.

3. Less Common / Technical Names:

• Rotary Ball Valve: Emphasizes the rotating action of the ball.

• Pneumatic Actuated Ball Valve or Electric Ball Valve: These names specify the type of actuator (automation method) used to operate the valve, not the valve itself.

What it is NOT Called (Common Confusion):

It is important to note that a ball valve is not correctly called a "gate valve," "globe valve," or "check valve." These are completely different types of valves with different designs and functions.

In summary: The best and most common alternative name is Quarter-Turn Valve. In everyday language, especially around the house, you'll also hear it called a Shut-Off Valve.