check valve

noun

Definition of check valve

: a valve that permits flow in one direction only

Examples of check valve in a Sentence

Recent Examples on the Web Lockney points to the microbial check valve as a solid example of how NASA can assuage this issue. Robin George Andrews, Scientific American, "Can Spaceflight Save the Planet?," 6 Sep. 2019 Known as a check valve, it was made of titanium and designed to let material through in only one direction. Samantha Masunagastaff Writer, Los Angeles Times, "SpaceX capsule explosion means it probably won’t fly astronauts until 2020," 15 July 2019 There is a vacuum check valve in the hose designed to maintain vacuum in the booster for brake application if the engine stalls. Bob Weber, chicagotribune.com, "Driver regrets not listening to his wife about brake failure," 7 Jan. 2018 First, the source of moisture should be investigated and eliminated and then the check valve and hose assembly may need to be replaced. Bob Weber, chicagotribune.com, "Driver regrets not listening to his wife about brake failure," 7 Jan. 2018 The company installed a new check valve to make sure the water flowed in the right direction and designed a new control system to prevent the problem from happening again. Jessica Levy, Milwaukee Journal Sentinel, "Top mechanical contract company Butters-Fetting is hiring," 4 May 2018 In heavy storms, the bypass serves as a sort of check valve to keep swollen rivers from over-topping the levees that protect Sacramento from flooding. Ryan Sabalow, Dale Kasler And Benjy Engel, sacbee, "Water rescues and flooded bypasses: Sacramento region gets late season soaking | The Sacramento Bee," 22 Mar. 2018 That’s enough to provide strong engine response while the turbo gets up to speed, at which point a check valve closes and the turbo takes over from the electric supercharger. Csaba Csere, Car and Driver, "Nine Things You Must Know about the New Mercedes Inline-Six," 20 Mar. 2018 Check the manual to see if the PCV valve is a check valve or some other method for metering manifold vacuum into the crankcase. Mike Allen, Popular Mechanics, "How to Find a Vacuum Leak," 28 Feb. 2011

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'check valve.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of check valve

circa 1877, in the meaning defined above

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Time Traveler for check valve

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 16 Feb. 2020.

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