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needle valve

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.
Origin of needle valve
1900-1905
1900-05
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for needle valve
Historical Examples
  • It is much more sensitive to adjustment in the float level and needle valve than the other type.

    Motors James Slough Zerbe
  • The first was sure that there was dirt on the point of the needle valve, in the carburetor.

    Free Air Sinclair Lewis
  • Do you think we'll get on the right track if we put the needle valve in?

    Tom Swift and his Airship Victor Appleton
  • Here is situated a needle valve from which the air is allowed to escape.

  • After leaving the needle valve the gasoline flows along the pipe S, Plate 25, until it reaches the evaporating coil, N.

    Langley Memoir on Mechanical Flight, Parts I and II S. P. (Samuel Pierpont) Langley and Charles M. (Charles Matthews) Manly
  • Consequently the needle valve nut should be moved but the small fraction of a turn for each adjustment.

    The Gasoline Motor Harold Whiting Slauson
  • The float may bind on its guide, the needle valve regulating the gasoline-inlet opening in bowl may stick to its seat.

    Aviation Engines Victor Wilfred Pag
  • When the level of gasoline in the float chamber was lowered the float would fall and the needle valve uncover the opening.

    Aviation Engines Victor Wilfred Pag
  • It will be noticed that a metering pin or needle valve opens the jet when the air valve opens.

    Aviation Engines Victor Wilfred Pag
  • When this adjustment is secured the lock nut is screwed in place so the needle valve will keep the adjustment.

    Aviation Engines Victor Wilfred Pag
British Dictionary definitions for needle valve

needle valve

noun
1.
a valve containing a tapered rod that can be moved in or out to control the flow of a fluid
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Value for needle

7
9
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