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

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

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

Open or close the needle valve to secure a flame about 4 inches long.

From Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon by Manly, Harold P. (Harold Phillips)

We need a needle valve in the gas tank.

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

"A bit of rubber washer choked the needle valve."

From Tom Swift Among the Fire Fighters, or, Battling with Flames from the Air by Appleton, Victor [pseud.]