check valve

noun

: a valve that permits flow in one direction only

Examples of check valve in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Install check valves to prevent floodwater from backing up your home's drains. Maria Sabella, Better Homes & Gardens, 7 Aug. 2024 The air is pushed through the check valve, compressing everything down as much as possible. Lydia Mansel, Travel + Leisure, 17 July 2024 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 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 See All Example Sentences for check valve

Word History

First Known Use

circa 1877, in the meaning defined above

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

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Cite this Entry

“Check valve.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/check%20valve. Accessed 9 Sep. 2025.

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