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

I turned on the switch, opened the needle valve, swung the throttle over to the notch numbered with a big "2."

From The River and I by John G. Neihardt

This setting of needle valve is absolutely essential to get the best results.

From Marvel Carbureter and Heat Control As Used on Series 691 Nash Sixes Booklet S by Anonymous

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

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