needle valve

American  

noun

Machinery.

1. a valve with a needlelike part, a fine adjustment, or a small opening, especially a valve in which the opening is controlled by a needlelike or conical point that fits into a conical seat.

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needle valve British  

noun

1. a valve containing a tapered rod that can be moved in or out to control the flow of a fluid

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Etymology

Origin of needle valve

First recorded in 1900–05

Example Sentences

See Examples For:

needle valve

There is a needle valve, and the point must be on the needle and must sit in its hole or the carburetor does not work.

From "Cannery Row" by John Steinbeck

For a while they spoke of the difficulties Gay must be having getting a needle valve and then gradually as the time passed they didn’t mention him any more.

From "Cannery Row" by John Steinbeck

An aspirator was attached to the water faucet and connected to the needle valve opening by means of a vacuum hose.

From Northern Nut Growers Association Incorporated 39th Annual Report at Norris, Tenn. September 13-15 1948 by Northern Nut Growers Association

No explosion followed, the needle valve controlling the powerful vapor perfectly.

From Tom Swift and His Airship by Appleton, Victor [pseud.]

While Claire shuddered lest he never get it back, he took out the needle valve, wiped it, put it back—and the engine was again started, and again, with great promptness, it stopped.

From Free Air by Lewis, Sinclair