check valve

noun

1. a valve permitting liquids or gases to flow in one direction only.

check valve

noun

1. Also called: nonreturn valve. a valve that closes by fluid pressure to prevent return flow

Word History and Origins

Origin of check valve¹

First recorded in 1875–80

Example Sentences

“The mega moon rocket’s still doing very well. We have one check valve — that is literally the only real issue we’ve seen so far,” said Tom Whitmeyer, deputy associate administrator for NASA’s exploration systems development division.

Read more on Washington Post

The check valve the previous owner had installed broke during Hurricane Henri, in late August.

Read more on Seattle Times

The check valve was made of titanium.

Read more on BBC

Even if her fabulous vibrato is mostly kept in check, “Valve Bone Woe” is successful, ear-catching and ear-caressing.

Read more on Washington Times

In order to understand the exact scenario, and characterize the flammability of the check valve’s titanium internal components and NTO, as well as other material used within the system, the accident investigation team performed a series of tests at SpaceX’s rocket development facility in McGregor, Texas.

Read more on Salon