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ball valve

American  

noun

Machinery.
  1. a valve controlling flow by means of a ball pierced with an opening in one direction and fixed to rotate on a spindle at right angles to the opening.

  2. any valve that checks flow by the seating of a ball.


ball valve British  

noun

  1. a one-way valve consisting of a metal ball with a cylindrical hole fitting into a concave seat over an opening

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ball valve

First recorded in 1830–40

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Should you have a full-pressure leak, you can cut the copper pipe, slide on an open ball valve and use a press tool to crimp the valve onto the copper tubing.

From Seattle Times Apr. 17, 2023

The device mimics the upper GI tract: an artificial stomach with a pressure pump, and a ball valve 'sphincter muscle,' leading up to the esophagus and throat.

From Scientific American Aug. 22, 2015

He fitted the bucket with a hose that was controlled by a ball valve of the sort used in swimming pool plumbing systems.

From New York Times Sep. 18, 2010

There is more than one type of valve, but the ball valve, usually made of stainless steel, has become the norm.

From Time Magazine Archive

It will be seen that the suction of the pump will draw the oil up, the small and lower ball valve, of course, allowing it to pass freely.

From Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants by Runciman, Walter C.

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