check valve


: a valve that permits flow in one direction only

Examples of check valve in a Sentence

Recent Examples on the Web However, this moving water causes check valve A to close, which stops the water from exiting. WIRED, 24 Mar. 2023 Since then, engineers have replaced and tested a check valve on the upper stage and fixed a small leak within the tail service mast umbilical used during fueling, said Cliff Lanham, senior vehicle operations manager at NASA’s Exploration Ground Systems Program. Ashley Strickland, CNN, 27 May 2022 But since the water is moving into a closed valve, it is redirected up past the other check valve, B, and causes the air space to be compressed. WIRED, 24 Mar. 2023 The craft was meant to enter orbit around five years ago, but a clogged check valve prevented it from performing a braking maneuver, sending it on a years-long trip around the sun. Nathaniel Scharping, Discover Magazine, 18 Oct. 2016 The leak let nitrogen tetroxide, a combustible component in rocket propellant, seep out enough to ignite a check valve and trigger the explosion. Hailey Rose McLaughlin, Discover Magazine, 17 July 2019 The largely similar front strut and rear multilink suspension has been massaged with handling in mind, featuring KYB dampers with an internal check valve that closes when subjected to lateral forces to firm up damping in corners. Dan Edmunds, Car and Driver, 14 Dec. 2022 Engineers identified a helium check valve that wasn't functioning. Ashley Strickland, CNN, 11 Apr. 2022 So far, the team has been working on replacing a faulty check valve on the rocket's upper stage that created a helium leak and repairing the source of a tail service mast hydrogen leak. Ashley Strickland, CNN, 5 May 2022 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'check valve.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

circa 1877, in the meaning defined above

Time Traveler
The first known use of check valve was circa 1877

Dictionary Entries Near check valve

Cite this Entry

“Check valve.” Dictionary, Merriam-Webster, Accessed 11 Dec. 2023.

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